| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| ADEI4 | Adel - North Raccoon River | 890.85 | | | | | | | | | | | | | | | | | | | | | | | |
| AESI4 | South Skunk River 2 SSE Ames US 30 | 13.56 | | | 34.48 | | 0 | | | | 1.43 | | | | | | | | | | | | | | |
| AGAI4 | East Fork Des Moines River 8 S IFC--Algona Hwy B63 | 1090.52 | | | | | | | | | | | | | | | | | | | | | | | |
| AGNI4 | East Fork Des Moines River 1 N Algona | 10.4 | | | 32.63 | | 0 | | | | 0.83 | | | | | | | | | | | | | | |
| AGRI4 | CEDAR RIVER 2 S St. Ansgar | 1097.3 | | | | | | | | | | | | | | | | | | | | | | | |
| AKNI4 | Fourmile Creek 3 N Ankeny US 69 | | | | | | | | | | | | | | | | | | | | | | | | |
| AKRI4 | Big Sioux River 1 NW Akron | 6.27 | | | 94.21 | | 0 | | | | 1.05 | | | | | | | | | | | | | | |
| AKWI4 | South River 2 SSW Ackworth | 8.75 | | | 6.27 | | 0 | | | | 0.838 | | | | | | | | | | | | 9.37 | | |
| ALFI4 | Fourmile Creek 4 WNW IFC--Altoona NE 54th Ave | 824.9 | | | | | | | | | | | | | | | | | | | | | | | |
| ALMI4 | Fourmile Creek near Alleman NW 142nd | | | | | | | | | | | | | | | | | | | | | | | | |
| ALOI4 | Cedar River 0 ENE Waterloo | 8.35 | | | 109.28 | | 0 | | | | 9.96 | | | | | | | | | | | | | | |
| ALSI4 | South Fork Iowa River 5 W IFC--Alden Hwy D20 | 1126.8 | | | | | | | | | | | | | | | | | | | | | | | |
| ALTI4 | Floyd River AT Alton | 6.16 | | | 76.46 | | 0 | | | | | | | | | | | | | | | | 12.49 | | |
| AMAI4 | Amana - Price Creek USGS | 80.91 | | | | | | | | | | | | | | | | | | | | | | | |
| AMDI4 | Ames 2SSE - IFC Ioway Creek Duff | 874.3 | | | | | | | | | | | | | | | | | | | | | | | |
| AMEI4 | South Skunk River 2 N Ames W Riverside Rd | 5.53 | | | 24.11 | | 0 | | | | 0.858 | | | | | | | | | | | | | | |
| AMMI4 | AMES SCAN | | | | | | | | | | | 43.29 | 53.1 | 53.2 | 42 | | 135 | | | | 14.3 | 21 | | | |
| AMPI4 | Amana - Price Creek | 711.13 | | | | | | | | | | | | | | | | | | | | | | | |
| AMQI4 | Ames 1W - IFC Ioway Creek at Stange Rd | 890.26 | | | | | | | | | | | | | | | | | | | | | | | |
| AMRI4 | South Skunk River 1 E IFC--Ames E 13th St | 880.44 | | | | | | | | | | | | | | | | | | | | | | | |
| AMWI4 | Ames 1SSW - Ioway Creek at Lincoln Way | 2.98 | | | | | | | | | 0.472 | | | | | | | | | | | | | | |
| ANFI4 | Fourmile Creek 3 NNE IFC--Ankeny NE 47th St | 908.47 | | | | | | | | | | | | | | | | | | | | | | | |
| ANKI4 | Fourmile Creek 2 ESE Ankeny NE 86th Ave | 3.5 | | | | | | | | | 0.253 | | | | | | | | | | | | 12.49 | | |
| ANPI4 | Amana - Price Creek S-Ave | 764.69 | | | | | | | | | | | | | | | | | | | | | | | |
| ANSI4 | Wapsipinicon River 1 SE Anamosa Shaw Rd | 12.1 | | | 36.85 | | 0 | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| AONI4 | Onion Creek 4 WNW IFC--Ames Hwy R38 | 955.92 | | | | | | | | | | | | | | | | | | | | | | | |
| APEI4 | Aplington - Drainage Ditch | 948.97 | | | | | | | | | | | | | | | | | | | | | | | |
| ATCI4 | East Nishnabotna River 5 SW Atlantic | 4.63 | | | 47.24 | | 0 | | | | 0.79 | | | | | | | | | | | | | | |
| ATDI4 | Atkins - Dry Creek | 778.51 | | | | | | | | | | | | | | | | | | | | | | | |
| ATNI4 | Altoona I-80 | | | | | | | | | | | | | | | | | | | | | | | | |
| BANI4 | Elgin - Otter Creek | 884.47 | | | | | | | | | | | | | | | | | | | | | | | |
| BASI4 | Bassett - Beaver Creek | 1038.4 | | | | | | | | | | | | | | | | | | | | | | | |
| BAYI4 | Middle Raccoon River 6 SE Bayard | 11.46 | | | 3.63 | | 0.02 | | | | 0.459 | | | | | | | | | | | | 12.18 | | |
| BCCI4 | Batavia 3ENE | 669 | | | | | | | | | | | | | | | | | | | | | | | |
| BCRI4 | Boone County | | | | | | | 0 | | | | | | | | | | | | | | | | | |
| BEAI4 | Beaver Creek 3 SSE IFC--Beaver Hwy P54 | 976.32 | | | | | | | | | | | | | | | | | | | | | | | |
| BHCI4 | Davenport - Black Hawk Creek at S Concord St | 553.34 | | | | | | | | | | | | | | | | | | | | | | | |
| BHLI4 | Black Hawk Lake 1 SE Lake View | | 8.08 | | | | | | | | | | | | | | | | | | | | | | |
| BIGI4 | Polk City 1SE - Big Creek Pounding | 36.25 | | | 6.78 | | 0 | | | | | | | | | | | | | | | | 12.81 | | |
| BLII4 | South Fork Iowa River 5 NNE Blairsburg | 5.37 | | | | | | | | | | | | | | | | | | | | | | | |
| BLVI4 | Mississippi River AT Bellevue LD12 | | 12.28 | 11.9 | 4.37 | | 0 | | | | | | | 52.09 | | 48.9 | | 173 | | 11.37 | | 7.18 | 13.71 | | |
| BNDI4 | Brainard - Otter Creek | 976.86 | | | | | | | | | | | | | | | | | | | | | | | |
| BNLI4 | Brandon - Lime Creek | 787.36 | | | | | | | | | | | | | | | | | | | | | | | |
| BNNI4 | Brandon - North Bear Creek | 804.6 | | | | | | | | | | | | | | | | | | | | | | | |
| BOCI4 | Burr Oak Creek 4 N Perkins | 12.15 | | | | | | | | | | | | | | | | | | | | | | | |
| BODI4 | Des Moines River 3 WSW IFC--Boone Hwy E41 | 868.35 | | | | | | | | | | | | | | | | | | | | | | | |
| BPCI4 | Prairie Creek 6 W IFC--Gilbert V Ave | 962.62 | | | | | | | | | | | | | | | | | | | | | | | |
| BPLI4 | Iowa River 3 S Belle Plaine | 14.97 | | | 88.53 | | 0 | | | | | | | | | | | | | | | | | | |
| BRAI4 | East Nishnabotna River 2 SSW IFC--Brayton 345th St | 1174.48 | | | | | | | | | | | | | | | | | | | | | | | |
| BRII4 | BRIGHTON | 606.71 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| BRLI4 | Mississippi River AT Burlington | 14.82 | | | 12.35 | | 0 | | | | | | | | | | | | | | | | | | |
| BSCI4 | Story City 8W - IFC Ioway Creek 120th | 972.26 | | | | | | | | | | | | | | | | | | | | | | | |
| BSFI4 | South Fork Iowa River 3 N IFC--Buckeye Hwy S27 | 1104.54 | | | | | | | | | | | | | | | | | | | | | | | |
| BSPI4 | Big Spirit Lake Spillway | 1398.4 | | | | | | | | | | | | | | | | | | | | | | | |
| BSQI4 | Gilbert 4WNW - IFC Ioway Creek at 160th | 930.82 | | | | | | | | | | | | | | | | | | | | | | | |
| BSSI4 | Cedar Creek 2 NW Bussey | 6.28 | | | 6.59 | | 0 | | | | 0.376 | | | | | | | | | | | | | | |
| BSTI4 | Bassett - Beaver Creek | 1001.79 | | | | | | | | | | | | | | | | | | | | | | | |
| BTDI4 | West Main Drainage Ditch 1 & 2 1 ENE Britt | 75.58 | | | | | | | | | | | | | | | | | | | | | | | |
| BUCI4 | Littleton - Buck Creek | 929.63 | | | | | | | | | | | | | | | | | | | | | | | |
| CBSI4 | Beaver Slough AT Clinton 3rd St | 16.21 | | | | | | | | | | | | | | 50.9 | | | | | | | | | |
| CCDI4 | Catfish Creek SSW Dubuque-IFC-Catfish Creek - Manson Rd | 606.45 | | | | | | | | | | | | | | | | | | | | | | | |
| CCTI4 | Central City | 815.31 | | | | | | | | | | | | | | | | | | | | | | | |
| CCYI4 | Cedar River AT Charles City | 4.06 | | | 0 | | 0 | | | | | | | | | | | | | | | | | | |
| CDDI4 | Cedar Rapids - Dry Creek | 811.26 | | | | | | | | | | | | | | | | | | | | | | | |
| CDVI4 | Lovilia - Cedar Creek | 733.22 | | | | | | | | | | | | | | | | | | | | | | | |
| CDYI4 | Dry Run Creek 0 SE IFC--Cedar Falls Waterloo Rd | 846.34 | | | | | | | | | | | | | | | | | | | | | | | |
| CEBI4 | Cedar River AT Cedar Bluff | 12.6 | | | 0 | | 0 | | | | | | | | | | | | | | | | | | |
| CHDI4 | Charlotte - Deep Creek | 666.63 | | | | | | | | | | | | | | | | | | | | | | | |
| CHHI4 | Charlotte - Honey Creek | 668.09 | | | | | | | | | | | | | | | | | | | | | | | |
| CHII4 | Chillicothe - Des Moines River | 649.24 | | | | | | | | | | | | | | | | | | | | | | | |
| CIDI4 | Cedar Rapids - Cedar River No 2 | 8.71 | | | | | | | | | | | | | | | | | | | | | | | |
| CJTI4 | Iowa River AT Columbus Jct | 19.22 | | | 2.09 | | 0 | | | | | | | | | | | | | | | | | | |
| CLKI4 | Clear Lake 0 SW Clear Lake | | 4.91 | | 19.55 | | 0.02 | | | | | | | | | | | | | | | | | | |
| CLLI4 | Middle Raccoon River Tributary 2 SSW Carroll | 15.41 | | | | | | | | | | | | | | | | | | | | | | | |
| CLOI4 | Clive - Walnut Creek near NW 100th | 841.05 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| CLRI4 | Shell Rock River 1 WNW IFC--Clarksville Hwy C33 | 917.69 | | | | | | | | | | | | | | | | | | | | | | | |
| CLSI4 | Shell Rock River 5 NW IFC--Clarksville Hwy T47 | 929.62 | | | | | | | | | | | | | | | | | | | | | | | |
| CLVI4 | Walnut Creek 3 WNW Clive I-80/35 | | | | | | | | | | | | | | | | | | | | | | | | |
| CMAI4 | Middle Raccoon River 0 NE IFC--Coon Rapids Hwy E63 | 1124.18 | | | | | | | | | | | | | | | | | | | | | | | |
| CMCI4 | Muddy Creek 2 NNE Coralville N | 2.54 | | | 0 | | 0 | | | | | | | | | | | | | | | | | | |
| CMOI4 | Middle Raccoon River 2 ESE IFC--Carroll Olympic Ave | 1196.5 | | | | | | | | | | | | | | | | | | | | | | | |
| CMTI4 | TURKEY RIVER AT Clermont | 818.33 | | | | | | | | | | | | | | | | | | | | | | | |
| CNEI4 | Cedar River 3 NE Conesville | 13.78 | | | 0.55 | | 0 | | | | | | | | | | | | | | | | | | |
| CNOI4 | East Nodaway River 3 ESE Clarinda Hwy 2 | 967.64 | | | | | | | | | | | | | | | | | | | | | | | |
| COFI4 | Masonville 2NE - Coffins Creek | 967.07 | | | | | | | | | | | | | | | | | | | | | | | |
| CONI4 | Conrad - Little Asher Creek | 946.74 | | | | | | | | | | | | | | | | | | | | | | | |
| CPBI4 | Center Point - Blue Creek | 762.94 | | | | | | | | | | | | | | | | | | | | | | | |
| CRAI4 | Clear Creek 2 W Coralville SW | 2.56 | | | 3.28 | | 0 | | | | | | | | | | | | | | | | | | |
| CREI4 | Cedar Rapids - Cedar River at Edgewood Rd | 6.45 | | | | | | | | | | | | | | | | | | | | | 12.81 | | |
| CRGI4 | Cedar Rapids - Indian Creek near Cottage Grove | 731.76 | | | | | | | | | | | | | | | | | | | | | | | |
| CRMI4 | Cedar Rapids - Indian Creek near Mount Vernon | 699.32 | | | | | | | | | | | | | | | | | | | | | | | |
| CROI4 | Orchard | 1023.73 | | | | | | | | | | | | | | | | | | | | | | | |
| CRRI4 | Little Sioux River 1 W Correctionville | 7.41 | | | 28.69 | | 0 | | | | | | | | | | | | | | | | | | |
| CRVI4 | Iowa River AT Coralville Dam | | 683.3 | | 65.38 | | 0 | | | | | | | 52.34 | | | | 141 | 15.14 | | | 5.86 | | | |
| CRWI4 | Crow Creek 3 NE Bettendorf Valley Rd | 3.83 | | | | | | | | | | | | | | | | | | | | | | | |
| CSCI4 | Cascade - NF Maquoketa River | 808.11 | | | | | | | | | | | | | | | | | | | | | | | |
| CSLI4 | North River 1 NNE IFC--Carlisle N 1st St | 771.21 | | | | | | | | | | | | | | | | | | | | | | | |
| CTWI4 | Iowa River AT Coralville Res Tail | | | 54.76 | | | | | | | | | | | | | | | | | | | | | |
| CWAI4 | Walnut Creek 4 W IFC--Clive NW 128th St | 863.86 | | | | | | | | | | | | | | | | | | | | | | | |
| CWCI4 | Cornell 2NW - Willow Creek | 83.06 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| DAKI4 | East Fork Des Moines River 0 ENE Dakota City | 10.77 | | | 15.2 | | 0 | | | | 1.77 | | | | | | | | | | | | | | |
| DAWI4 | North Raccoon River 1 N IFC--Dawson Hwy P46 | 935.46 | | | | | | | | | | | | | | | | | | | | | | | |
| DBCI4 | Dyersville 1W - Bear Creek | 929.26 | | | | | | | | | | | | | | | | | | | | | | | |
| DBFI4 | Dubuque - N Fork Catfish | 690.06 | | | | | | | | | | | | | | | | | | | | | | | |
| DBGI4 | Dubuque - Granger Creek at Dubuque | 605.89 | | | | | | | | | | | | | | | | | | | | | | | |
| DBQI4 | Mississippi River AT Dubuque | 13.08 | | | 53.32 | | 0 | | | | | | | | | | | | | | | | | | |
| DCHI4 | Upper Iowa River 4 S Dorchester Hwy 76 | 8.64 | | | 7.78 | | 0 | | | | | | | | | | | | | | | | | | |
| DCLI4 | Colo - Dye Creek | 1021.69 | | | | | | | | | | | | | | | | | | | | | | | |
| DEDI4 | Brushy Creek 3 SE IFC--Dedham IA 141 | 1189.21 | | | | | | | | | | | | | | | | | | | | | | | |
| DEMI4 | Raccoon River 2 SW Des Moines Fleur Dr | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | | |
| DEPI4 | Deep River 1 NE Deep River | 67.74 | | | | | | | | | | | | | | | | | | | | | | | |
| DEQI4 | Delhi - Maquoketa River | 840.12 | | | | | | | | | | | | | | | | | | | | | | | |
| DESI4 | Des Moines River 2 S Des Moines SE 6th St | 18.67 | | | 4.6 | | 0 | | 0 | 0 | 17.9 | | | | | | | | | | | | 11.87 | | |
| DEWI4 | Wapsipinicon River 4 S De Witt 4S | 12.16 | | | 2.77 | | 0 | | | | | | | | | | | | | | | | | | |
| DFMI4 | Fourmile Creek 3 ENE Des Moines Easton Blvd | 4.96 | | | 14.86 | | 0 | | 0 | 0 | | | | | | | | | | | | | | | |
| DHCI4 | Dyersville 1NE - Hewitt Creek | 932.38 | | | | | | | | | | | | | | | | | | | | | | | |
| DKEI4 | Duck Creek SSW Davenport-IFC-Duck Creek - Eastern Ave | 616.82 | | | | | | | | | | | | | | | | | | | | | | | |
| DKTI4 | Dunkerton - Wapsipinicon River | 927.37 | | | | | | | | | | | | | | | | | | | | | | | |
| DLDI4 | Mississippi River AT Dubuque LD11 | | 14.76 | 11.09 | 0.38 | | 0 | | | | | | | 52.38 | | 50 | | 150 | | 24.41 | | 20.19 | 12.97 | | |
| DLLI4 | White Breast Creek 3 WNW Melcher-Dallas | 7.86 | | | 7.38 | | 0 | | | | 0.363 | | | | | | | | | | | | | | |
| DMOI4 | Des Moines River 1 NW Des Moines 2nd Ave | 16.94 | | | 3.2 | | 0 | | | | | | | | | 32 | | | | | | | 12.81 | | |
| DMWI4 | Raccoon River 6 WSW Des Moines IA 28 | 26.3 | | | 0 | | 0 | | 0 | 0 | | | | | | | | | | | | | 12.81 | | |
| DNKI4 | Dunkerton 1WNW - Crane Creek | 943.29 | | | | | | | | | | | | | | | | | | | | | | | |
| DNLI4 | Boyer River 4 SW Dunlap | 1059.19 | | | | | | | | | | | | | | | | | | | | | | | |
| DOSI4 | Walnut Creek 5 W Des Moines 63rd St | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| DSKI4 | Denison - Boyer River at K Ave | 1155.15 | | | | | | | | | | | | | | | | | | | | | | | |
| DSOI4 | Soap Creek 5 NW IFC--Drakesville Falcon Blvd | 707.61 | | | | | | | | | | | | | | | | | | | | | | | |
| DUDI4 | Dundee - Maquoketa River | 967.6 | | | | | | | | | | | | | | | | | | | | | | | |
| DUMI4 | Hargrave Creek 3 W IFC--Dumont Franklin Ave | 984.65 | | | | | | | | | | | | | | | | | | | | | | | |
| DVSI4 | Thompson River 0 ENE Davis City | 4.43 | | | 4.93 | | 0 | | | | 2.44 | | | | | | | | | | | | | | |
| DWCI4 | WATERLOO CREEK 1 S Dorchester | 6.83 | | | | | | | | | | | | | | | | | | | | | | | |
| DYSI4 | Wolf Creek 6 N Dysart | 3.8 | | | | | | | | | 0.505 | | | | | | | | | | | | | | |
| DYVI4 | Dyersville - NF Maquoketa River | 922.07 | | | | | | | | | | | | | | | | | | | | | | | |
| EAVI4 | Avoca - EB West Nishnabotna | 1119.83 | | | | | | | | | | | | | | | | | | | | | | | |
| EBRI4 | Salt Creek 3 S Elberon | 8.12 | | | | | | | | | 0.349 | | | | | | | | | | | | | | |
| ECLI4 | Lawton - Elliot Creek | 72.4 | | | | | | | | | | | | | | | | | | | | | | | |
| EDBI4 | Beaver Creek 2 W IFC--Eldora IA 175 | 968.86 | | | | | | | | | | | | | | | | | | | | | | | |
| EDYI4 | Des Moines River 0 S Eddyville | 58.81 | | | | 0 | 0 | | | | | | | | | | | | | | | | | | |
| EFDI4 | South Raccoon River 3 SW IFC--Redfield Dexfield Rd | 919.78 | | | | | | | | | | | | | | | | | | | | | | | |
| EFWI4 | Jefferson | 7.36 | | | 24.93 | | 0 | | | | 1.92 | | | | | | | | | | | | | | |
| EGNI4 | Elgin | 793.47 | | | | | | | | | | | | | | | | | | | | | | | |
| EISI4 | Riverton - East Nishnabotna River L68 | 921.11 | | | | | | | | | | | | | | | | | | | | | | | |
| ELHI4 | Ely - Hoosier Creek | 712.07 | | | | | | | | | | | | | | | | | | | | | | | |
| ELSI4 | Ellsworth | | | | | | | 0 | | | | | | | | | | | | | | | | | |
| ELTI4 | East Nishnabotna River 1 WSW Elliott Hwy 48 | 1051.6 | | | | | | | | | | | | | | | | | | | | | | | |
| EMEI4 | Indian Creek AT Emerson Morton Ave | 1039.6 | | | | | | | | | | | | | | | | | | | | | | | |
| EMNI4 | Indian Creek 3 NE Emerson | 1058.65 | | | | | | | | | | | | | | | | | | | | | | | |
| EMTI4 | West Fork Des Moines River 1 NW Emmetsburg | 2.44 | | | 2.76 | | 0 | | | | 0.685 | | | | | | | | | | | | 12.49 | | |
| EOKI4 | Mississippi River AT Keokuk LD19 | | 18.25 | 12.33 | 0 | | 0 | | | | | | | 59.18 | | 51.6 | | 313 | | 8.12 | | 5.37 | 13.78 | | |
| EQUI4 | Little Soap Creek 2 N IFC--Floris Quail Ave | 645.47 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| ERCI4 | Roberts Creek 2 NE Elkader 2NE | 749.24 | | | | | | | | | | | | | | | | | | | | | | | |
| ESQI4 | Ames - Ioway Creek | 3.29 | | | | | | 0 | | | | | | | | | | | | | | | | | |
| ETRI4 | Stantion - East Tarkio Creek | 1.73 | | | | | | | | | | | | | | | | | | | | | | | |
| FAII4 | Mississippi River AT Fairport | 12.45 | | | 3.63 | | 0 | | | | | | | | | | | | | | | | | | |
| FAXI4 | Fairfax - Prairie Creek | 740.93 | | | | | | | | | | | | | | | | | | | | | | | |
| FDDI4 | Des Moines River 4 NW IFC--Fort Dodge Hwy D14 | 993.69 | | | | | | | | | | | | | | | | | | | | | | | |
| FERI4 | Winnebago River 0 S IFC--Fertile S 1st St | 1152.79 | | | | | | | | | | | | | | | | | | | | | | | |
| FLCI4 | Chequest Creek 5 SSW IFC--Selma Wheat Ave | 670.12 | | | | | | | | | | | | | | | | | | | | | | | |
| FLMI4 | Le Mars | 1191.22 | | | | | | | | | | | | | | | | | | | | | | | |
| FLNI4 | North Fork Maquoketa River 3 WNW Fulton | 3.53 | | | | | | | | | | | | | | | | | | | | | | | |
| FLSI4 | Soap Creek 1 N IFC--Floris Quail Ave | 635.35 | | | | | | | | | | | | | | | | | | | | | | | |
| FLZI4 | Lizard Creek 5 WNW Fort Dodge | 6.04 | | | | | | | | | | | | | | | | | | | | | | | |
| FMBI4 | Ankeny 2 SE | | | | | | | | | | | | | | | | | | | | | | | | |
| FMDI4 | Mississippi River AT Fort Madison | 527.64 | | | 90.22 | | 0.01 | | | | | | | | | | | | | | | | | | |
| FODI4 | Des Moines River 2 WNW Fort Dodge | 5.82 | | | 0 | | 0 | | | | 3.77 | | | | | | | | | | | | | | |
| FORI4 | Winnebago River 2 SSE IFC--Forest City Hwy B14 | 1194.23 | | | | | | | | | | | | | | | | | | | | | | | |
| FRAI4 | Des Moines River 0 SSW IFC--Fraser Kale Rd | 886.38 | | | | | | | | | | | | | | | | | | | | | | | |
| FRDI4 | Frederika - EF Wapsipinicon River | 1011.61 | | | | | | | | | | | | | | | | | | | | | | | |
| FREI4 | Freeport - Upper Iowa River | 829.53 | | | | | | | | | | | | | | | | | | | | | | | |
| FRSI4 | Maurice - Struble | 1243.82 | | | | | | | | | | | | | | | | | | | | | | | |
| FSTI4 | Brockcamp Creek AT Festina | 989.83 | | | | | | | | | | | | | | | | | | | | | | | |
| FTAI4 | Rogers Creek AT Fort Atkinson | 1008.25 | | | | | | | | | | | | | | | | | | | | | | | |
| FTKI4 | Fort Atkinson - Turkey River | 1000.88 | | | | | | | | | | | | | | | | | | | | | | | |
| GENI4 | Muscatine - Geneva Creek | 588.11 | | | | | | | | | | | | | | | | | | | | | | | |
| GJTI4 | Buttrick Creek 3 WSW Grand Junction | 8.37 | | | 8.63 | | 0 | | | | | | | | | | | | | | | | 11.24 | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| GLBI4 | Gilbert - Montgomery Creek | 966.15 | | | | | | | | | | | | | | | | | | | | | | | |
| GLDI4 | Boone River 2 WSW Goldfield | 10.76 | | | 37.52 | | 0 | | | | 0.524 | | | | | | | | | | | | | | |
| GMDI4 | Garrison - Mud Creek | 847.87 | | | | | | | | | | | | | | | | | | | | | | | |
| GMUI4 | Garrison - Mud Creek | 912.3 | | | | | | | | | | | | | | | | | | | | | | | |
| GNEI4 | Green - Shell Rock River | 949.82 | | | | | | | | | | | | | | | | | | | | | | | |
| GOLI4 | Goldfield - Boone River | 1079.18 | | | | | | | | | | | | | | | | | | | | | | | |
| GPKI4 | Alpha - Gouldsburg County Park | 986.77 | | | | | | | | | | | | | | | | | | | | | | | |
| GRBI4 | Turkey River AT Garber | 9.68 | | | 0 | | 0 | | | | | | | | | 50.3 | | | | | | | | 2.82 | |
| GRMI4 | Beaver Creek 3 E Grimes | 7.37 | | | 0 | | 0 | | | | 1.12 | | | | | | | | | | | | | | |
| GTTI4 | Mississippi River AT Guttenberg Dam 10 | | 612.02 | 11.6 | | | | | | | | | | | | | | | | | | | 14.06 | | |
| HAVI4 | Richland Creek 1 NNE Haven | 12.72 | | | 65.03 | | 0 | | | | 0.167 | | | | | | | | | | | | 13.35 | | |
| HBTI4 | West Fork Des Moines River 0 WSW Humboldt | 5.33 | | | 3.65 | | 0 | | | | 1.38 | | | | | | | | | | | | | | |
| HILI4 | Hills - Iowa River | 621.92 | | | | | | | | | | | | | | | | | | | | | | | |
| HMBI4 | Nishnabotna River 1 E Hamburg | 13.17 | | | 38.94 | | 0 | | | | | | | | | | | | | | | | | | |
| HMCI4 | Homestead - Clear Creek | 756.74 | | | | | | | | | | | | | | | | | | | | | | | |
| HMSI4 | Homestead - Clear Creek | 747.84 | | | | | | | | | | | | | | | | | | | | | | | |
| HMTI4 | Homestead - Clear Creek Trib | 739.92 | | | | | | | | | | | | | | | | | | | | | | | |
| HNKI4 | West Nishnabotna River AT Hancock | 3.55 | | | 0.35 | | 0 | | | | | | | | | | | | | | | | | | |
| HOUI4 | Houghton - Sugar Creek | 631.63 | | | | | | | | | | | | | | | | | | | | | | | |
| HRTI4 | Walnut Creek 4 NNW Hartwick | 3.78 | | | | | | | | | 0.198 | | | | | | | | | | | | | | |
| HTCI4 | Tipton Creek 5 NNW IFC--Hubbard 230th St | 1085.02 | | | | | | | | | | | | | | | | | | | | | | | |
| HTII4 | Tipton Creek 4 E IFC--Hubbard N Ave | 1011.08 | | | | | | | | | | | | | | | | | | | | | | | |
| HWNI4 | West Nishnabotna River 1 NW Henderson Hwy H12 | 1017.76 | | | | | | | | | | | | | | | | | | | | | | | |
| HWOI4 | Hiawatha - Otter Creek | 743.05 | | | | | | | | | | | | | | | | | | | | | | | |
| ICBI4 | Council Bluffs - Indian Creek | 1031.4 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| ICDI4 | Iowa City - Deer Creek | 677.09 | | | | | | | | | | | | | | | | | | | | | | | |
| ICLI4 | Nodaway River 1 E Clarinda | 12.71 | | | 7.93 | | 0 | | | | | | | 61.81 | | | | | | | | | | | |
| ICRI4 | Iowa City - Ralston Creek | 652.38 | | | | | | | | | | | | | | | | | | | | | | | |
| ICWI4 | Iowa City - Willow Creek | 661.89 | | | | | | | | | | | | | | | | | | | | | | | |
| IDNI4 | Middle River 5 NNW Indianola | 11.81 | | | 2.89 | | 0 | | | | 1.48 | | | | | | | | | | | | | | |
| IDPI4 | Wapsipinicon River AT Independence | 7.37 | | | 74.4 | | 0 | | | | | | | | | | | | | | | | | | |
| IFAI4 | Iowa Falls - Iowa River | 1063.97 | | | | | | | | | | | | | | | | | | | | | | | |
| IOCI4 | Old Mans Creek 5 SW Iowa City SW | 4.88 | | | | | | | | | | | | | | | | | | | | | | | |
| IOWI4 | Iowa City - Iowa River | 17.56 | | | 0 | | 0 | | | | | | | | | | | | | | | | | | |
| IRCI4 | Rapid Creek 4 NE Iowa City NE | 4.83 | | | 78.07 | | 0 | | | | | | | | | | | | | | | | 13.91 | | |
| IWNI4 | West Nishnabotna River 0 ENE Irwin Cora St | 1236.63 | | | | | | | | | | | | | | | | | | | | | | | |
| JCOI4 | Jerico -Crane Creek | 1142.53 | | | | | | | | | | | | | | | | | | | | | | | |
| JDAI4 | West Des Moines | | | | | | | | | | | | | | | | | | | | | | | | |
| JEWI4 | Mud Lake Drainage Ditch 71 1 N Jewell | 81.93 | | | | | | | | | | | | | | | | | | | | | | | |
| JMEI4 | Floyd River 1 NE James | 9.1 | | | 56.16 | | 0 | | | | | | | | | | | | | | | | | | |
| KALI4 | English River 1 SSW Kalona | 8.95 | | | | | | | | | | | | | | | | | | | | | | | |
| KCQI4 | Keosauqua - Chequest Creek | 621.19 | | | | | | | | | | | | | | | | | | | | | | | |
| KECI4 | English Creek 4 ESE Knoxville | 9.79 | | | 3.84 | | 0 | | | | 0.0947 | | | | | | | | | | | | | | |
| KEQI4 | Des Moines River AT Keosauqua | 16.91 | | | | | | | | | | | | | | | | | | | | | | | |
| KESI4 | Kesley - EF Cedar River | 947.31 | | | | | | | | | | | | | | | | | | | | | | | |
| KITI4 | Langworthy - Kitty Creek | 853.27 | | | | | | | | | | | | | | | | | | | | | | | |
| KLGI4 | North Skunk River 3 SE IFC--Kellogg S 12th Ave E | 811.54 | | | | | | | | | | | | | | | | | | | | | | | |
| KMRI4 | Kamrar | | | | | | | 0 | | | | | | | | | | | | | | | | | |
| KRSI4 | Kinross - South English | 690.53 | | | | | | | | | | | | | | | | | | | | | | | |
| LADI4 | Big Bear Creek AT Ladora | 13.98 | | | 0 | | 0 | | | | | | | | | | | | | | | | 12.78 | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| LAKI4 | Lake Creek 3 W IFC--Lake City IA 175 | 1104.59 | | | | | | | | | | | | | | | | | | | | | | | |
| LAPI4 | Wolf Creek 0 WNW IFC--La Porte City W Main St | 806.58 | | | | | | | | | | | | | | | | | | | | | | | |
| LARI4 | Larrabee - Mill Creek | 1232.68 | | | | | | | | | | | | | | | | | | | | | | | |
| LCOI4 | Little Cedar River 5 E Orchard 5E | 1074.89 | | | | | | | | | | | | | | | | | | | | | | | |
| LCYI4 | Lacey - Middle Creek | 76.74 | | | | | | | | | | | | | | | | | | | | | | | |
| LECI4 | Mississippi River AT Le Claire LD14 | | 15.01 | 8.16 | 1.17 | | 0 | | | | | | | 53.53 | | 50.7 | | 113 | | 11.81 | | 8.94 | 13.21 | | |
| LELI4 | Winnebago River 0 NNE IFC--Leland Hwy A38 | 1210.24 | | | | | | | | | | | | | | | | | | | | | | | |
| LFSI4 | Sanborn 4W - Little Floyd River | 83.05 | | | | | | | | | | | | | | | | | | | | | | | |
| LGNI4 | Boyer River AT Logan | 5.03 | | | 27.38 | | 0 | | | | | | | | | | | | | | | | | | |
| LKCI4 | North Raccoon River 2 WSW Lanesboro | 10.81 | | | 70.56 | | 0 | | | | | | | | | | | | | | | | | | |
| LMCI4 | Lester - Mud Creek | 1365.91 | | | | | | | | | | | | | | | | | | | | | | | |
| LNNI4 | Little Sioux River AT Linn Grove | 17.04 | | | 80.25 | | 0 | | | | | | | | | | | | | | | | | | |
| LNSI4 | Mississippi River AT Lansing | 9.27 | 621.53 | | | | | | | | | | | | | | | | | | | | | | |
| LNTI4 | Iowa River 5 SW Lone Tree | -1310.72 | | | 0.19 | | 0 | | | | | | | | | | | | | | | | | | |
| LPRI4 | West Fork Little Sioux River 3 SE Lake Park | 1392.02 | | | | | | | | | | | | | | | | | | | | | | | |
| LRGI4 | Little Rock River - George Ibex | 1302.16 | | | | | | | | | | | | | | | | | | | | | | | |
| LRHI4 | Troublesome Creek 4 E IFC--Lorah Troublesome Creek Rd | 1186.64 | | | | | | | | | | | | | | | | | | | | | | | |
| LSCI4 | Cherokee | 1159.84 | | | | | | | | | | | | | | | | | | | | | | | |
| LSMI4 | Milford | 1365.04 | | | | | | | | | | | | | | | | | | | | | | | |
| LSSI4 | Spencer 4 NW | | | | 9.89 | | 0 | | | | | | | | | | | | | | | | | | |
| LTNI4 | Littleton - Little Wapsipinicon River | 928.03 | | | | | | | | | | | | | | | | | | | | | | | |
| MAAI4 | Massena - West Nodaway River | 67.85 | | | | | | | | | | | | | | | | | | | | | | | |
| MACI4 | Marion - Indian Creek | 812.53 | | | | | | | | | | | | | | | | | | | | | | | |
| MANI4 | Shell Rock River 3 N IFC--Plymouth IA 9 | 1126.36 | | | | | | | | | | | | | | | | | | | | | | | |
| MAPI4 | Maple River AT Mapleton | 5.89 | | | 61.94 | | 0 | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| MAQI4 | Maquoketa River 2 NE Maquoketa | 12.98 | | | | | | | | | | | | | | | | | | | | | 12.78 | | |
| MAYI4 | May City | 1421.67 | | | | | | | | | | | | | | | | | | | | | | | |
| MBNI4 | North Raccoon River 2 WSW IFC--Minburn Minburn Rd | 899.63 | | | | | | | | | | | | | | | | | | | | | | | |
| MBRI4 | Marquette | 4.07 | | | 56.24 | | 0 | | | | | | | | | | | | | | | | | | |
| MCBI4 | Mosquito Creek 4 ENE Council Bluffs | 992.27 | | | | | | | | | | | | | | | | | | | | | | | |
| MCCI4 | Cheslea Creek 2 SW IFC--Mason City 19th St SW | 1136.65 | | | | | | | | | | | | | | | | | | | | | | | |
| MCHI4 | Maquoketa River AT Manchester Hwy 20 | 5.14 | | | 66.73 | | 0 | | | | | | | | | | | | | | | | 13.22 | | |
| MCII4 | Winnebago River 2 E IFC--Mason City S Illinois Ave | 1063.2 | | | | | | | | | | | | | | | | | | | | | | | |
| MCKI4 | Winnebago River 7 NW IFC--Mason City Killdeer Ave | 1111.05 | | | | | | | | | | | | | | | | | | | | | | | |
| MCRI4 | Winnebago River 5 ESE IFC--Mason City Hwy S56 | 1044.08 | | | | | | | | | | | | | | | | | | | | | | | |
| MCWI4 | Winnebago River 1 NNE Mason City | 6.27 | | | 10 | | 0 | | | | 0.632 | | | | | | | | | | | | | | |
| MDCI4 | Muscatine - Mad Creek No2 | 617.08 | | | | | | | | | | | | | | | | | | | | | | | |
| MELI4 | Merrill County - Floyd River | 1154.26 | | | | | | | | | | | | | | | | | | | | | | | |
| MERI4 | Merrimac | 586.57 | | | | | | | | | | | | | | | | | | | | | | | |
| MGOI4 | Indian Creek 3 NNW Mingo | 6.08 | | | 25.17 | | 0 | | | | 0.744 | | | | | | | | | | | | 13.12 | | |
| MHYI4 | Manchester 3NNE - Honey Creek | 945.67 | | | | | | | | | | | | | | | | | | | | | | | |
| MIGI4 | Maple River AT Ida Grove | 1199.44 | | | | | | | | | | | | | | | | | | | | | | | |
| MIWI4 | Iowa River 1 N Marshalltown | 14.19 | | | 0 | | 0 | | | | 3.42 | | | | | | | | | | | | | | |
| MKCI4 | Keg Creek 1 WSW Mineola Hwy H12 | 998.76 | | | | | | | | | | | | | | | | | | | | | | | |
| MLSI4 | Little Sioux River 2 NW Montgomery | 1386.66 | | | | | | | | | | | | | | | | | | | | | | | |
| MNEI4 | Mosquito Creek 1 NNE Neola | 1078.04 | | | | | | | | | | | | | | | | | | | | | | | |
| MNTI4 | Monticello - Maquoketa Creek | 796.48 | | | | | | | | | | | | | | | | | | | | | | | |
| MPZI4 | MOUNT PLEASANT 1 SSW [CCOOP] | | | | 13.41 | | | | | | | | | | | | | | | | | | 13.1 | | |
| MRBI4 | Shell Rock River 2 SSE IFC--Marble Rock 290th St | 950.17 | | | | | | | | | | | | | | | | | | | | | | | |
| MRGI4 | Maple River AT Galva | 1253.37 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| MROI4 | Iowa River AT Marengo | 15.87 | | | 0 | | 0 | | | | | | | | | | | | | | | | | | |
| MSPI4 | Willow Creek 1 W IFC--Mason City N Pierce Ave | 1111.35 | | | | | | | | | | | | | | | | | | | | | | | |
| MSVI4 | Boyer River 2 ENE Missouri Valley | 1001.04 | | | | | | | | | | | | | | | | | | | | | | | |
| MSWI4 | Willow Creek 0 WSW IFC--Mason City 1st St SW | 1102.28 | | | | | | | | | | | | | | | | | | | | | | | |
| MTCI4 | Camp Creek 5 S IFC--Mitchellville IA 163 | 813.08 | | | | | | | | | | | | | | | | | | | | | | | |
| MTWI4 | Timber Creek 4 SE Marshalltown | 5.36 | | | 17.06 | | 0 | | | | 0.295 | | | | | | | | | | | | | | |
| MUDI4 | Mud Creek 5 WSW Henderson | 1026.46 | | | | | | | | | | | | | | | | | | | | | | | |
| MUSI4 | Mississippi River AT Muscatine | 13.41 | | | 670 | | 0 | | | | | | | | | | | | | | | | | | |
| MUTI4 | Muscatine - Mad Creek | 570.48 | | | | | | | | | | | | | | | | | | | | | | | |
| MUVI4 | Vinton - Mud Creek | 819.69 | | | | | | | | | | | | | | | | | | | | | | | |
| MXII4 | East Indian Creek 4 N IFC--Maxwell Hwy S27 | 887.42 | | | | | | | | | | | | | | | | | | | | | | | |
| NEPI4 | English River 4 S Parnell | 16.22 | | | 3.07 | | 0 | | | | | | | | | | | | | | | | 13.05 | | |
| NHRI4 | Beaver Creek 0 NNE New Hartford | 5.51 | | | 82.71 | | 0.02 | | | | 0.771 | | | | | | | | | | | | | | |
| NRSI4 | Shell Rock River 2 NW IFC--Nora Springs 277th St | 1054.52 | | | | | | | | | | | | | | | | | | | | | | | |
| NRWI4 | North River 2 SE Norwalk | 13.78 | | | | | | | | | 1.39 | | | | | | | | | | | | | | |
| NUAI4 | Little Cedar River AT Nashua | 948.98 | | | | | | | | | | | | | | | | | | | | | | | |
| NWSI4 | North Washington 1SSE - Little Wapsi | 1090.3 | | | | | | | | | | | | | | | | | | | | | | | |
| NWVI4 | New Vienna - NF Maquoketa River | 982.78 | | | | | | | | | | | | | | | | | | | | | | | |
| OAMI4 | Oakland Mills - Skunk River | 565.17 | | | | | | | | | | | | | | | | | | | | | | | |
| OKMI4 | Oakland Mills 3W - Cedar Creek | 6.48 | | | 111.84 | | 0.01 | | | | | | | | | | | | | | | | 13.5 | | |
| OKVI4 | Iowa River AT Oakville | 11.03 | | | | | | | | | | | | | | | | | | | | | | | |
| OLII4 | Olin 1N - Wapsipinicon River | 744.22 | | | | | | | | | | | | | | | | | | | | | | | |
| OOAI4 | South Skunk River 4 N Oskaloosa | 16.51 | | | 0 | | 0 | | | | | | | | | | | | | | | | 12.77 | | |
| ORNI4 | Oran - Little Wapsi | 82.99 | | | | | | | | | | | | | | | | | | | | | | | |
| OSCI4 | Slough Creek 3 SE Orchard 3SE | 1096.15 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| OSGI4 | Osage 2 W | 1067.17 | | | | | | | | | | | | | | | | | | | | | | | |
| OSPI4 | Osage - Spring Creek Hwy 9 | 1136.04 | | | | | | | | | | | | | | | | | | | | | | | |
| OSRI4 | Rock Creek 6 W Osage 6W | 1137.66 | | | | | | | | | | | | | | | | | | | | | | | |
| OTMI4 | Des Moines River 1 S Ottumwa | 8.93 | | | | | | | | | 25.6 | | | | | 50 | | | | | | | | | |
| OTRI4 | Cedar River 3 N Otranto | 1132.04 | | | | | | | | | | | | | | | | | | | | | | | |
| OTUI4 | Osterdock - Turkey River | 627.24 | | | | | | | | | | | | | | | | | | | | | | | |
| OTVI4 | Otterville - Otter Creek | 906.96 | | | | | | | | | | | | | | | | | | | | | | | |
| OWSI4 | South Beaver Creek 3 WSW IFC--Owasa US 65 | 1088.21 | | | | | | | | | | | | | | | | | | | | | | | |
| OXCI4 | Oxford - Clear Creek | 713.32 | | | | | | | | | | | | | | | | | | | | | | | |
| OXDI4 | Clear Creek SSW Oxford-IFC-Clear Creek - Eagle Ave | 700.14 | | | | | | | | | | | | | | | | | | | | | | | |
| OXJI4 | Wapsipinicon River 1 S Oxford Jct | 714.91 | | | | | | | | | | | | | | | | | | | | | | | |
| OXRI4 | Oxford - Rhine Creek | 730.31 | | | | | | | | | | | | | | | | | | | | | | | |
| OYEI4 | Owens County - Willow Creek | 1254.26 | | | | | | | | | | | | | | | | | | | | | | | |
| PABI4 | Palo - Bear Creek | 740.06 | | | | | | | | | | | | | | | | | | | | | | | |
| PADI4 | Palo - Dry Creek | 738.5 | | | | | | | | | | | | | | | | | | | | | | | |
| PANI4 | Middle Raccoon River 1 SW Panora | 5.32 | | | 45.95 | | 0 | | | | 0.549 | | | | | -179.2 | | | | | | | 12.18 | | |
| PARI4 | Beaver Creek 3 E IFC--Parkersburg Hwy T47 | 911.87 | | | | | | | | | | | | | | | | | | | | | | | |
| PCHI4 | Perry Creek 4 W Hinton | 15.36 | | | 38.7 | | 0 | | | | | | | | | | | | | | | | 11.87 | | |
| PELI4 | Des Moines River 4 SW Red Rock Reservoir | | 742.35 | | | | | | | | | | | | | | | | | | | | 13.67 | | |
| PFLI4 | Cedar River 1 E IFC--Plainfield IA 188 | 925.35 | | | | | | | | | | | | | | | | | | | | | | | |
| PKFI4 | Packard 2ENE - Flood Creek | 941.14 | | | | | | | | | | | | | | | | | | | | | | | |
| PLEI4 | Spring Creek 4 ESE IFC--Pleasant Hill SE 32nd Ave | 780.45 | | | | | | | | | | | | | | | | | | | | | | | |
| PLHI4 | Fourmile Creek 1 S IFC--Pleasant Hill Vandalia Rd | 774.46 | | | | | | | | | | | | | | | | | | | | | | | |
| PLKI4 | Big Creek Lake 2 NNW Polk City | 20.28 | | | 6.2 | | 0 | | | | | | | | | | | | | | | | 11.24 | | |
| PLMI4 | Mud Creek 6 E IFC--Pleasant Hill IA 163 | 817.45 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| PLOI4 | Cedar River AT Palo Blairs Ferry Rd | 9.43 | | | 0 | | 0 | | | | | | | | | 49.3 | | | | | | | | | |
| PMDI4 | Bluff Creek 0 NW Pilot Mound | 81.47 | | | | | | | | | | | | | | | | | | | | | | | |
| PNBI4 | Burchfield Creek 4 NNW IFC--Panora Sage Trl | 1046.01 | | | | | | | | | | | | | | | | | | | | | | | |
| PNLI4 | Lake Panorama 1 WNW Panora | | 45.6 | | | | | | | | | | | | | | | | | | | | 13.12 | | |
| PRAI4 | Prairieburg 3 S | 834.26 | | | | | | | | | | | | | | | | | | | | | | | |
| PROI4 | North Raccoon River 1 W Perry | 9.37 | | | 7.49 | | 0 | | | | | | | | | | | | | | | | 12.81 | | |
| PSGI4 | Soldier River AT Pisgah | 3.41 | | | 0 | | 0 | | | | | | | 149.49 | | | | | | | | | 13.12 | | |
| QTNI4 | Quasqueton - Wapsipinicon River | 866.19 | | | | | | | | | | | | | | | | | | | | | | | |
| RABI4 | Chariton River 1 N Rathbun | 2.26 | | | | | | | | | 0.0154 | | | | | | | | | | | | | | |
| RAPI4 | Rock River AT Rock Rapids | 7.62 | | | 26.37 | | 0 | | | | | | | | | | | | | | | | | | |
| RBDI4 | Robins - Dry Creek | 845.14 | | | | | | | | | | | | | | | | | | | | | | | |
| RCOI4 | Rock Creek 2 WSW Orchard 2WSW | 1027.18 | | | | | | | | | | | | | | | | | | | | | | | |
| RDFI4 | Middle Raccoon River 0 W IFC--Redfield Hwy F59 | 911.26 | | | | | | | | | | | | | | | | | | | | | | | |
| RDOI4 | East Nishnabotna River AT Red Oak | 9.33 | | | 28.08 | | 0 | | | | | | | | | | | | | | | | | | |
| RDPI4 | West Nishnabotna River 1 W Randolph | 9.79 | | | 27.3 | | 0 | | | | | | | 64.42 | | 53.5 | | | | | | | | | |
| RIVI4 | Riverdale - Duck Creek | 563.67 | | | | | | | | | | | | | | | | | | | | | | | |
| RKDI4 | Rickardsville - Maquoketa | 9.4 | | | | | | | | | | | | | | | | | | | | | | | |
| RKFI4 | Rockford 3 SSE | 971.4 | | | | | | | | | | | | | | | | | | | | | | | |
| RKVI4 | Rock River AT Rock Valley | 5.14 | | | | | | | | | | | | | | | | | | | | | | | |
| RLFI4 | Pilot Creek 3 E Rolfe | 3.66 | | | 28.9 | | 0 | | | | | | | | | | | | | | | | | | |
| RLLI4 | Roland - Long Dick Creek | 992.9 | | | | | | | | | | | | | | | | | | | | | | | |
| RNDI4 | Houghton - Volga River Hwy93 | 1084.44 | | | | | | | | | | | | | | | | | | | | | | | |
| RNSI4 | South Skunk River 2 SSE IFC--Randall Hwy R61 | 976.84 | | | | | | | | | | | | | | | | | | | | | | | |
| ROLI4 | Roland - Bear Creek | 955.97 | | | | | | | | | | | | | | | | | | | | | | | |
| ROWI4 | Iowa River 4 WNW Rowan | 6.31 | | | 5.03 | | 0 | | | | 0.516 | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| RRDI4 | Des Moines River 4 SW Pella | | | 93.87 | | | | | | | 26.1 | | | | | 49.6 | | | | | | | | | |
| RRMI4 | Red Rock Dam | | | | 6.77 | | 0 | | | | | | | 55.82 | | | | 138 | 13.75 | | | 8.42 | 13.98 | | |
| RSRI4 | Rochester - Cedar River | 646.45 | | | | | | | | | | | | | | | | | | | | | | | |
| RSSI4 | South Skunk River 1 WSW IFC--Reasnor Hwy F62 | 750.39 | | | | | | | | | | | | | | | | | | | | | | | |
| SARI4 | North Raccoon River 3 NNW IFC--Sac City 230th St | 1194.84 | | | | | | | | | | | | | | | | | | | | | | | |
| SAYI4 | Des Moines River 4 WNW Saylorville Reservoir | | 836.14 | | 31.57 | | 0 | | | | | | | | | | | 160 | | | | 6.22 | 14.21 | | |
| SCRI4 | North Raccoon River 5 S Sac City | 9.03 | | | 2.17 | | 0 | | | | 0.56 | | | | | | | | | | | | 11.87 | | |
| SDEI4 | Saude - Little Turkey River | 1119.23 | | | | | | | | | | | | | | | | | | | | | | | |
| SDTI4 | Des Moines River 2 W Saylorville | | | 8.75 | | | | | | | 8.26 | | | | | | | | | | | | 13.43 | | |
| SFLI4 | Sheffield 11SE - WF Cedar River | 991.25 | | | | | | | | | | | | | | | | | | | | | | | |
| SFRI4 | Sheldon | 1367.82 | | | | | | | | | | | | | | | | | | | | | | | |
| SHAI4 | SHAGBARK HILLS SCAN | | | | | | | | | | | 51.74 | 60.8 | 62.1 | 45 | | 164 | | | | 7.2 | 14.3 | | | |
| SHNI4 | East Nishnabotna River 1 N Shenandoah | 945.57 | | | | | | | | | | | | | | | | | | | | | | | |
| SIGI4 | North Skunk River 2 S Sigourney | 12.68 | | | 290 | | 0 | | | | | | | | | | | | | | | | | | |
| SILI4 | Silver Creek AT Silver City Dobney Ave | 1007.1 | | | | | | | | | | | | | | | | | | | | | | | |
| SIOI4 | Perry Creek AT Sioux City | 6.71 | | | 26.7 | | 0 | | | | | | | | | | | | | | | | | | |
| SLFI4 | Sutliff - Cedar River | 677.82 | | | | | | | | | | | | | | | | | | | | | | | |
| SLKI4 | Spirit Lake 2 NW Orleans | | 14.14 | | 22.1 | | 0 | | | | | | | | | | | | | | | | | | |
| SPGI4 | Spring Run Creek | 1398.55 | | | | | | | | | | | | | | | | | | | | | | | |
| SPII4 | Little Sioux River 3 NW Spencer / Highway 18 | 1317.46 | | | | | | | | | | | | | | | | | | | | | | | |
| SPLI4 | Turkey River AT Spillville | 3.52 | | | 13.11 | | 0 | | | | | | | | | | | | | | | | | | |
| SPNI4 | Spencer | 1301.37 | | | | | | | | | | | | | | | | | | | | | | | |
| SPVI4 | Spillville - Turkey River | 1060.69 | | | | | | | | | | | | | | | | | | | | | | | |
| SRLI4 | Storm Lake at Storm Lake | | 14.19 | | | | | | | | | | | | | 9 | | | | | | | | | |
| STBI4 | Iowa River 0 WSW Steamboat Rock | 6.87 | | | 0 | | 0 | | | | 1.55 | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| STCI4 | Story City - Keigley Branch | 84.17 | | | | | | | | | | | | | | | | | | | | | | | |
| STHI4 | Stanhope | | | | | | | 0 | | | | | | | | | | | | | | | | | |
| STRI4 | Des Moines River 4 WSW Stratford | 9.65 | | | 15.06 | | 0.07 | | | | 6.43 | | | | | | | | | | | | | | |
| SWCI4 | Sutherland - Waterman Creek 470th | 1233.82 | | | | | | | | | | | | | | | | | | | | | | | |
| SWNI4 | Des Moines River 2 NE Swan | 52.61 | | | 12.86 | | 0 | | | | | | | | | | | | | | | | | | |
| TAMI4 | Iowa River 1 S Tama US 63 | 14.25 | | | 2.81 | | 0 | | | | | | | | | | | | | | | | 12.82 | | |
| TARI4 | Raven Creek 5 W IFC--Tama Hwy E49 | 825.15 | | | | | | | | | | | | | | | | | | | | | | | |
| TCGI4 | Turkey River 3 SE Cresco | 1122.1 | | | | | | | | | | | | | | | | | | | | | | | |
| TENI4 | Turkey River 8 NW 10 Mile Bridge 8NW Elkader | 760.34 | | | | | | | | | | | | | | | | | | | | | | | |
| TFGI4 | Tiffin - Buffalo Creek | 702.34 | | | | | | | | | | | | | | | | | | | | | | | |
| TFII4 | Tiffin - Buffalo Creek - Ireland Ave | 729.45 | | | | | | | | | | | | | | | | | | | | | | | |
| TMAI4 | Iowa River 3 W Tama Hwy E49 | 9.11 | | | 0 | | 0 | | | | 4.4 | | | | | | | | | | | | | | |
| TMBI4 | Bennett Creek 4 WSW IFC--Tama G Ave | 827.55 | | | | | | | | | | | | | | | | | | | | | | | |
| TPTI4 | Brushy Fork Creek 4 ENE Templeton | 67.5 | | | | | | | | | | | | | | | | | | | | | | | |
| TRAI4 | Traer - Coon Creek | 882.75 | | | | | | | | | | | | | | | | | | | | | | | |
| TRCI4 | Des Moines River 1 ENE Tracy | 10 | | | 0.32 | | 0 | | | | 26.6 | | | | | | | | | | | | | | |
| TRNI4 | Monona-Harrison Ditch 4 SSW Turin | 5.51 | | | 50.11 | | 0 | | | | | | | | | | | | | | | | 13.12 | | |
| TROI4 | South Chequest Creek 2 N IFC--Troy Yak Blvd | 664.48 | | | | | | | | | | | | | | | | | | | | | | | |
| TURI4 | Little Sioux River 4 SSE Turin | 9.82 | | | 47.31 | | 0 | | | | | | | | | | | | | | | | | | |
| UBMI4 | North Walnut Creek at Urbandale Meredith | | | | | | | | | | | | | | | | | | | | | | | | |
| UBWI4 | Walnut Creek 5 W Urbandale 142nd St | | | | | | | | | | | | | | | | | | | | | | | | |
| UIDI4 | Upper Iowa River 3 NW Decorah 3NW | 887.72 | | | | | | | | | | | | | | | | | | | | | | | |
| ULDI4 | Delhi 4W - Upper Lake Delhi | 897.1 | | | | | | | | | | | | | | | | | | | | | | | |
| URBI4 | North Walnut Creek 1 SW IFC--Urbandale Hickman Rd | 834.65 | | | | | | | | | | | | | | | | | | | | | | | |
| USOI4 | Soap Creek 5 N IFC--Unionville 313th Ave | 769.27 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| VANI4 | Raccoon River 0 NE IFC--Van Meter Hwy R16 | 849.13 | | | | | | | | | | | | | | | | | | | | | | | |
| VGAI4 | Volga River AT Volga | 778.07 | | | | | | | | | | | | | | | | | | | | | | | |
| VIMI4 | Vinton - Mud Creek | 772.49 | | | | | | | | | | | | | | | | | | | | | | | |
| VINI4 | Cedar River AT Vinton | 4.75 | | | 3.5 | | 0 | | | | | | | | | 49.6 | | | | | | | | | |
| VNMI4 | Raccoon River 0 ENE Van Meter | 8 | | | 2.46 | | 0 | | | | 6.45 | | | | | -133.1 | | | | | | | 13.43 | | |
| WADI4 | Volga River AT Wadena | 847.47 | | | | | | | | | | | | | | | | | | | | | | | |
| WAEI4 | Elk Run Creek 5 E IFC--Waterloo Independence Ave | 847.16 | | | | | | | | | | | | | | | | | | | | | | | |
| WAPI4 | Iowa River AT Wapello | 21.17 | | | 0 | | 0 | | | | | | | | | | | | | | | | | | |
| WASI4 | Washburn - Miller Creek | 821.9 | | | | | | | | | | | | | | | | | | | | | | | |
| WAVI4 | Avoca 1W - West Nishnabotna River | 1114.94 | | | | | | | | | | | | | | | | | | | | | | | |
| WBCI4 | Boone River 3 SSE Webster City | 4.38 | | | 12.13 | | 0 | | | | 1.43 | | | | | | | | | | | | | | |
| WBWI4 | West Branch - Wapsinonoc Creek | 3.19 | | | | | | | | | | | | | | | | | | | | | | | |
| WCBI4 | Waukee 156th St | | | | | | | | | | | | | | | | | | | | | | | | |
| WCCI4 | Grimes 4 WSW | | | | | | | | | | | | | | | | | | | | | | | | |
| WCDI4 | Waukee 2 NNW | | | | | | | | | | | | | | | | | | | | | | | | |
| WCRI4 | Walnut Creek SSW Olin-IFC-Walnut Creek - 35th St | 747.98 | | | | | | | | | | | | | | | | | | | | | | | |
| WCSI4 | Willow Creek 6 SE Soldier | 66.39 | | | | | | | | | | | | | | | | | | | | | | | |
| WCWI4 | Little Walnut Creek 6 WNW IFC--Clive 156th St | 897.91 | | | | | | | | | | | | | | | | | | | | | | | |
| WDMI4 | Raccoon River 5 SW West Des Moines | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | | |
| WFCI4 | Washington 2SW - WF Crooked Crrek | 663.43 | | | | | | | | | | | | | | | | | | | | | | | |
| WFMI4 | West Fork Little Sioux River AT Moville | 1129.99 | | | | | | | | | | | | | | | | | | | | | | | |
| WISI4 | Riverton - West Nishnabotna J46 | 915.04 | | | | | | | | | | | | | | | | | | | | | | | |
| WLMI4 | Williamsburg - Clear Creek Trib | 771.46 | | | | | | | | | | | | | | | | | | | | | | | |
| WLRI4 | Walnut Creek 6 E IFC--Runnells Adkins St | 757.93 | | | | | | | | | | | | | | | | | | | | | | | |
| WLSI4 | Welsh Lake | 1396.78 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI |
| WLTI4 | Welton - Silver Creek | 81.67 | | | | | | | | | | | | | | | | | | | | | | | |
| WNDI4 | North Walnut Creek 1 NW IFC--Windsor Heights College Dr | 826.08 | | | | | | | | | | | | | | | | | | | | | | | |
| WONI4 | Spillville - Wonder Creek | 1059.59 | | | | | | | | | | | | | | | | | | | | | | | |
| WUOI4 | West Union - Otter Creek | 1082.85 | | | | | | | | | | | | | | | | | | | | | | | |
| WVLI4 | Cedar River 1 NNE Waverly | 5.18 | | | 4.51 | | 0.01 | | | | 1.52 | | | | | 50.2 | | | | | | | | | 0.81 |
| WWDI4 | Beaver Creek 4 SSW Woodward | 14.28 | | | 8.88 | | 0 | | | | | | | | | | | | | | | | 11.56 | | |
| WYOI4 | Wyoming - Bear Creek | 794.56 | | | | | | | | | | | | | | | | | | | | | | | |