| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| ADEI4 | Adel - North Raccoon River | 889.05 | | | | | | | | | | | | | | | | | | | | | | | |
| AESI4 | South Skunk River 2 SSE Ames US 30 | 11.32 | | | 31.58 | | | 0 | | | | | | | | | | | | | | | | | |
| AGAI4 | East Fork Des Moines River 8 S IFC--Algona Hwy B63 | 1087.53 | | | | | | | | | | | | | | | | | | | | | | | |
| AGNI4 | East Fork Des Moines River 1 N Algona | 7.9 | | | 28.15 | | | 0 | | | | | | | | | | | | | | | | | |
| AGRI4 | CEDAR RIVER 2 S St. Ansgar | 1096.82 | | | | | | | | | | | | | | | | | | | | | | | |
| AKNI4 | Fourmile Creek 3 N Ankeny US 69 | | | | | | | | | | | | | | | | | | | | | | | | |
| AKRI4 | Big Sioux River 1 NW Akron | 5.75 | | | 88.35 | | | 0 | | | | | | | | | | | | | | | | | |
| AKWI4 | South River 2 SSW Ackworth | 5.1 | | | 3.62 | | | 0 | | | | | | | | | | | | | | 12.18 | | | |
| ALFI4 | Fourmile Creek 4 WNW IFC--Altoona NE 54th Ave | 823.48 | | | | | | | | | | | | | | | | | | | | | | | |
| ALMI4 | Fourmile Creek near Alleman NW 142nd | | | | | | | | | | | | | | | | | | | | | | | | |
| ALOI4 | Cedar River 0 ENE Waterloo | 5.56 | | | 104.27 | | | 0 | | | | | | | | | | | | | | | | | |
| ALSI4 | South Fork Iowa River 5 W IFC--Alden Hwy D20 | 1125.98 | | | | | | | | | | | | | | | | | | | | | | | |
| ALTI4 | Floyd River AT Alton | 5.78 | | | 74.27 | | | 0 | | | | | | | | | | | | | | 12.18 | | | |
| AMAI4 | Amana - Price Creek USGS | 79.55 | | | | | | | | | | | | | | | | | | | | | | | |
| AMDI4 | Ames 2SSE - IFC Ioway Creek Duff | 872.66 | | | | | | | | | | | | | | | | | | | | | | | |
| AMEI4 | South Skunk River 2 N Ames W Riverside Rd | 4.09 | | | 12.06 | | | 0 | | | | | | | | | | | | | | | | | |
| AMPI4 | Amana - Price Creek | 710.2 | | | | | | | | | | | | | | | | | | | | | | | |
| AMRI4 | South Skunk River 1 E IFC--Ames E 13th St | 878.75 | | | | | | | | | | | | | | | | | | | | | | | |
| AMWI4 | Ames 1SSW - Ioway Creek at Lincoln Way | 2.12 | | | | | | | | | | | | | | | | | | | | | | | |
| ANFI4 | Fourmile Creek 3 NNE IFC--Ankeny NE 47th St | 907.54 | | | | | | | | | | | | | | | | | | | | | | | |
| ANKI4 | Fourmile Creek 2 ESE Ankeny NE 86th Ave | 1.78 | | | | | | | | | | | | | | | | | | | | 11.87 | | | |
| ANPI4 | Amana - Price Creek S-Ave | 764 | | | | | | | | | | | | | | | | | | | | | | | |
| ANSI4 | Wapsipinicon River 1 SE Anamosa Shaw Rd | 7.24 | | | 31.46 | | | 0 | | | | | | | | | | | | | | | | | |
| AONI4 | Onion Creek 4 WNW IFC--Ames Hwy R38 | 955.76 | | | | | | | | | | | | | | | | | | | | | | | |
| APEI4 | Aplington - Drainage Ditch | 949.12 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| ATCI4 | East Nishnabotna River 5 SW Atlantic | 3.54 | | | 43.37 | | | 0 | | | | | | | | | | | | | | | | | |
| ATDI4 | Atkins - Dry Creek | 777.14 | | | | | | | | | | | | | | | | | | | | | | | |
| ATNI4 | Altoona I-80 | | | | | | | | | | | | | | | | | | | | | | | | |
| BANI4 | Elgin - Otter Creek | 884.26 | | | | | | | | | | | | | | | | | | | | | | | |
| BASI4 | Bassett - Beaver Creek | 1038.53 | | | | | | | | | | | | | | | | | | | | | | | |
| BAYI4 | Middle Raccoon River 6 SE Bayard | 11.42 | | | 2.72 | | | 0 | | | | | | | | | | | | | | 11.56 | | | |
| BCCI4 | Batavia 3ENE | 666.39 | | | | | | | | | | | | | | | | | | | | | | | |
| BCRI4 | Boone County | | | | | | | | 0 | | | | | | | | | | | | | | | | |
| BEAI4 | Beaver Creek 3 SSE IFC--Beaver Hwy P54 | 976.22 | | | | | | | | | | | | | | | | | | | | | | | |
| BHCI4 | Davenport - Black Hawk Creek at S Concord St | 552.84 | | | | | | | | | | | | | | | | | | | | | | | |
| BHLI4 | Black Hawk Lake 1 SE Lake View | | 7.7 | | | | | | | | | | | | | | | | | | | | | | |
| BIGI4 | Polk City 1SE - Big Creek Pounding | 38.93 | | | 0.88 | | | 0 | | | | | | | | | | | | | | 13.43 | | | |
| BLBI4 | Blairsburg | | | | | | | | 0 | | | | | | | | | | | | | | | | |
| BLII4 | South Fork Iowa River 5 NNE Blairsburg | 5.09 | | | | | | | | | | | | | | | | | | | | | | | |
| BLVI4 | Mississippi River AT Bellevue LD12 | | 12.03 | 6.62 | 0.62 | | | 0 | | | | | | 0.72 | 31.5 | 330 | | | 9.98 | | 6.8 | 13.73 | | | |
| BNLI4 | Brandon - Lime Creek | 787.02 | | | | | | | | | | | | | | | | | | | | | | | |
| BNNI4 | Brandon - North Bear Creek | 804.23 | | | | | | | | | | | | | | | | | | | | | | | |
| BOCI4 | Burr Oak Creek 4 N Perkins | 12.56 | | | | | | | | | | | | | | | | | | | | | | | |
| BODI4 | Des Moines River 3 WSW IFC--Boone Hwy E41 | 866.11 | | | | | | | | | | | | | | | | | | | | | | | |
| BPLI4 | Iowa River 3 S Belle Plaine | 9.34 | | | 82.85 | | | 0 | | | | | | | | | | | | | | | | | |
| BRAI4 | East Nishnabotna River 2 SSW IFC--Brayton 345th St | 1173.61 | | | | | | | | | | | | | | | | | | | | | | | |
| BRII4 | BRIGHTON | 601.26 | | | | | | | | | | | | | | | | | | | | | | | |
| BRLI4 | Mississippi River AT Burlington | 8.59 | | | 5.82 | | | 0 | | | | | | | | | | | | | | | | | |
| BSCI4 | Story City 8W - IFC Ioway Creek 120th | 971.24 | | | | | | | | | | | | | | | | | | | | | | | |
| BSFI4 | South Fork Iowa River 3 N IFC--Buckeye Hwy S27 | 1104.17 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| BSQI4 | Gilbert 4WNW - IFC Ioway Creek at 160th | 929.74 | | | | | | | | | | | | | | | | | | | | | | | |
| BSSI4 | Cedar Creek 2 NW Bussey | 4.38 | | | 3.43 | | | 0 | | | | | | | | | | | | | | | | | |
| BSTI4 | Bassett - Beaver Creek | 1001.6 | | | | | | | | | | | | | | | | | | | | | | | |
| BTDI4 | West Main Drainage Ditch 1 & 2 1 ENE Britt | 75.39 | | | | | | | | | | | | | | | | | | | | | | | |
| BUCI4 | Littleton - Buck Creek | 929.78 | | | | | | | | | | | | | | | | | | | | | | | |
| CBII4 | Cedar River 5 ESE Cedar Rapids below Indian Creek | -1310.72 | | | | | | | | | | | | | | | | | | | | | | | |
| CBSI4 | Beaver Slough AT Clinton 3rd St | 10.59 | | | | | | | | | | | | | 32.3 | | | | | | | | | | |
| CCDI4 | Catfish Creek SSW Dubuque-IFC-Catfish Creek - Manson Rd | 606.26 | | | | | | | | | | | | | | | | | | | | | | | |
| CCTI4 | Central City | 811.25 | | | | | | | | | | | | | | | | | | | | | | | |
| CCYI4 | Cedar River AT Charles City | 3.23 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| CDDI4 | Cedar Rapids - Dry Creek | 810.36 | | | | | | | | | | | | | | | | | | | | | | | |
| CDVI4 | Lovilia - Cedar Creek | 731.6 | | | | | | | | | | | | | | | | | | | | | | | |
| CDYI4 | Dry Run Creek 0 SE IFC--Cedar Falls Waterloo Rd | 844.65 | | | | | | | | | | | | | | | | | | | | | | | |
| CEBI4 | Cedar River AT Cedar Bluff | 5.47 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| CENI4 | Centerville - Cooper Creek | 8.13 | | | | | | | | | | | | | | | | | | | | | | | |
| CERI4 | Cedar Rapids - Cedar River at 12th | 2.54 | | | | | | | | | | | | | | | | | | | | 13.28 | | | |
| CHDI4 | Charlotte - Deep Creek | 665.47 | | | | | | | | | | | | | | | | | | | | | | | |
| CHHI4 | Charlotte - Honey Creek | 667.71 | | | | | | | | | | | | | | | | | | | | | | | |
| CHII4 | Chillicothe - Des Moines River | 645.17 | | | | | | | | | | | | | | | | | | | | | | | |
| CIDI4 | Cedar Rapids - Cedar River No 2 | 4.63 | | | | | | | | | | | | | | | | | | | | | | | |
| CJTI4 | Iowa River AT Columbus Jct | 12.22 | | | 0.52 | | | 0 | | | | | | | | | | | | | | | | | |
| CLAI4 | Clayton | 13.26 | | | | | | | | | | | | | | | | | | | | | | | |
| CLKI4 | Clear Lake 0 SW Clear Lake | | 4.88 | | 16.5 | | | 0 | | | | | | | | | | | | | | | | | |
| CLLI4 | Middle Raccoon River Tributary 2 SSW Carroll | 15.27 | | | | | | | | | | | | | | | | | | | | | | | |
| CLRI4 | Shell Rock River 1 WNW IFC--Clarksville Hwy C33 | 916.11 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| CLTI4 | Stein Creek 5 E Clutier | 67.71 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| CLVI4 | Walnut Creek 3 WNW Clive I-80/35 | | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | |
| CMAI4 | Middle Raccoon River 0 NE IFC--Coon Rapids Hwy E63 | 1125.09 | | | | | | | | | | | | | | | | | | | | | | | |
| CMCI4 | Muddy Creek 2 NNE Coralville N | 2.21 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| CMMI4 | Mississippi River AT Camanche | 9.54 | | | | | | | | | | | | | 32.3 | | | | | | | 13.82 | | | |
| CMTI4 | TURKEY RIVER AT Clermont | 817.23 | | | | | | | | | | | | | | | | | | | | | | | |
| CNEI4 | Cedar River 3 NE Conesville | 7.37 | | | 0.08 | | | 0 | | | | | | | | | | | | | | | | | |
| COFI4 | Masonville 2NE - Coffins Creek | 966.61 | | | | | | | | | | | | | | | | | | | | | | | |
| CONI4 | Conrad - Little Asher Creek | 946.08 | | | | | | | | | | | | | | | | | | | | | | | |
| CPBI4 | Center Point - Blue Creek | 762.46 | | | | | | | | | | | | | | | | | | | | | | | |
| CRAI4 | Clear Creek 2 W Coralville SW | 0.9 | | | 0.51 | | | 0 | | | | | | | | | | | | | | | | | |
| CREI4 | Cedar Rapids - Cedar River at Edgewood Rd | 5.96 | | | | | | | | | | | | | | | | | | | | 12.18 | | | |
| CRGI4 | Cedar Rapids - Indian Creek near Cottage Grove | 730.72 | | | | | | | | | | | | | | | | | | | | | | | |
| CRMI4 | Cedar Rapids - Indian Creek near Mount Vernon | 698.45 | | | | | | | | | | | | | | | | | | | | | | | |
| CROI4 | Orchard | 1024.02 | | | | | | | | | | | | | | | | | | | | | | | |
| CRRI4 | Little Sioux River 1 W Correctionville | 7.28 | | | 26.01 | | | 0 | | | | | | | | | | | | | | | | | |
| CRVI4 | Iowa River AT Coralville Dam | | 682.68 | | 61.23 | | | 0 | | | | | | 1.41 | | 314 | | | | | 19.33 | | | | |
| CRWI4 | Crow Creek 3 NE Bettendorf Valley Rd | 3.52 | | | | | | | | | | | | | | | | | | | | | | | |
| CSRI4 | Ames 4NW - Ioway Creek Cameron School Rd | 2.12 | | | | | | | 0 | | | | | | | | | | | | | | | | |
| CTRI4 | Carpenter - Deer Creek | 78.54 | | | | | | | | | | | | | | | | | | | | | | | |
| CTWI4 | Iowa River AT Coralville Res Tail | | | 50.51 | | | | | | | | | | | | | | | | | | | | | |
| CWAI4 | Walnut Creek 4 W IFC--Clive NW 128th St | 861.82 | | | | | | | | | | | | | | | | | | | | | | | |
| CWCI4 | Cornell 2NW - Willow Creek | 81.61 | | | | | | | | | | | | | | | | | | | | | | | |
| DAKI4 | East Fork Des Moines River 0 ENE Dakota City | 11.21 | | | 12.46 | | | 0 | | | | | | | | | | | | | | | | | |
| DBCI4 | Dyersville 1W - Bear Creek | 928.61 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| DBFI4 | Dubuque - N Fork Catfish | 690.02 | | | | | | | | | | | | | | | | | | | | | | | |
| DBQI4 | Mississippi River AT Dubuque | 8.6 | | | 48.97 | | | 0 | | | | | | | | | | | | | | | | | |
| DCHI4 | Upper Iowa River 4 S Dorchester Hwy 76 | 8.27 | | | 1.73 | | | 0 | | | | | | | | | | | | | | | | | |
| DCLI4 | Colo - Dye Creek | 1021.57 | | | | | | | | | | | | | | | | | | | | | | | |
| DEDI4 | Brushy Creek 3 SE IFC--Dedham IA 141 | 1189.09 | | | | | | | | | | | | | | | | | | | | | | | |
| DEMI4 | Raccoon River 2 SW Des Moines Fleur Dr | | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | |
| DEPI4 | Deep River 1 NE Deep River | 66.28 | | | | | | | | | | | | | | | | | | | | | | | |
| DEQI4 | Delhi - Maquoketa River | 839.07 | | | | | | | | | | | | | | | | | | | | | | | |
| DESI4 | Des Moines River 2 S Des Moines SE 6th St | 11.6 | | | 5.77 | | | 0 | | 0 | 0 | | | | | | | | | | | 10.93 | | | |
| DEWI4 | Wapsipinicon River 4 S De Witt 4S | 6.52 | | | 0.72 | | | 0 | | | | | | | | | | | | | | | | | |
| DFMI4 | Fourmile Creek 3 ENE Des Moines Easton Blvd | 3.87 | | | 11.96 | | | 0 | | 0 | 0 | | | | | | | | | | | 12.18 | | | |
| DHCI4 | Dyersville 1NE - Hewitt Creek | 931.98 | | | | | | | | | | | | | | | | | | | | | | | |
| DKEI4 | Duck Creek SSW Davenport-IFC-Duck Creek - Eastern Ave | 615.81 | | | | | | | | | | | | | | | | | | | | | | | |
| DKTI4 | Dunkerton - Wapsipinicon River | 924.59 | | | | | | | | | | | | | | | | | | | | | | | |
| DLDI4 | Mississippi River AT Dubuque LD11 | | 14.88 | 6.01 | 0 | | | 0 | | | | | | -0.4 | 31.8 | 318 | | | 29.14 | | 20.42 | 14.02 | | | |
| DLLI4 | White Breast Creek 3 WNW Melcher-Dallas | 6.1 | | | 3.79 | | | 0 | | | | | | | | | | | | | | | | | |
| DMOI4 | Des Moines River 1 NW Des Moines 2nd Ave | 13.72 | | | 1.95 | | | 0 | | | | | | | 32 | | | | | | | 12.49 | | | |
| DMWI4 | Raccoon River 6 WSW Des Moines IA 28 | 21.16 | | | 0 | | | 0 | | 0 | 0 | | | | | | | | | | | 12.18 | | | |
| DNKI4 | Dunkerton 1WNW - Crane Creek | 942.78 | | | | | | | | | | | | | | | | | | | | | | | |
| DNLI4 | Boyer River 4 SW Dunlap | 1058.86 | | | | | | | | | | | | | | | | | | | | | | | |
| DOSI4 | Walnut Creek 5 W Des Moines 63rd St | | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | |
| DSKI4 | Denison - Boyer River at K Ave | 1155.15 | | | | | | | | | | | | | | | | | | | | | | | |
| DSOI4 | Soap Creek 5 NW IFC--Drakesville Falcon Blvd | 706.29 | | | | | | | | | | | | | | | | | | | | | | | |
| DUDI4 | Dundee - Maquoketa River | 967.06 | | | | | | | | | | | | | | | | | | | | | | | |
| DVSI4 | Thompson River 0 ENE Davis City | 25.11 | | | 4.67 | | | 0 | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| DWCI4 | WATERLOO CREEK 1 S Dorchester | 6.43 | | | | | | | | | | | | | | | | | | | | | | | |
| DYSI4 | Wolf Creek 6 N Dysart | 2.21 | | | | | | | | | | | | | | | | | | | | | | | |
| DYVI4 | Dyersville - NF Maquoketa River | 921.53 | | | | | | | | | | | | | | | | | | | | | | | |
| EAVI4 | Avoca - EB West Nishnabotna | 1119.14 | | | | | | | | | | | | | | | | | | | | | | | |
| EBRI4 | Salt Creek 3 S Elberon | 6.86 | | | | | | | | | | | | | | | | | | | | | | | |
| ECLI4 | Lawton - Elliot Creek | 72.43 | | | | | | | | | | | | | | | | | | | | | | | |
| EDBI4 | Beaver Creek 2 W IFC--Eldora IA 175 | 968.58 | | | | | | | | | | | | | | | | | | | | | | | |
| EDYI4 | Des Moines River 0 S Eddyville | 49.7 | | | | 0 | | 0 | | | | | | | | | | | | | | | | | |
| EFDI4 | South Raccoon River 3 SW IFC--Redfield Dexfield Rd | 919.07 | | | | | | | | | | | | | | | | | | | | | | | |
| EFWI4 | Jefferson | 5.45 | | | 22.41 | | | 0 | | | | | | | | | | | | | | | | | |
| EGNI4 | Elgin | 793.91 | | | | | | | | | | | | | | | | | | | | | | | |
| EISI4 | Riverton - East Nishnabotna River L68 | 917.54 | | | | | | | | | | | | | | | | | | | | | | | |
| ELHI4 | Ely - Hoosier Creek | 711.48 | | | | | | | | | | | | | | | | | | | | | | | |
| ELRI4 | Eldorado - Little Turkey River | 938.69 | | | | | | | | | | | | | | | | | | | | | | | |
| ELSI4 | Ellsworth | | | | | | | | 0 | | | | | | | | | | | | | | | | |
| ELTI4 | East Nishnabotna River 1 WSW Elliott Hwy 48 | 1049.41 | | | | | | | | | | | | | | | | | | | | | | | |
| EMEI4 | Indian Creek AT Emerson Morton Ave | 1038.62 | | | | | | | | | | | | | | | | | | | | | | | |
| EMNI4 | Indian Creek 3 NE Emerson | 1057.92 | | | | | | | | | | | | | | | | | | | | | | | |
| EMTI4 | West Fork Des Moines River 1 NW Emmetsburg | 1.41 | | | 0.26 | | | 0 | | | | | | | | | | | | | | 11.56 | | | |
| EOKI4 | Mississippi River AT Keokuk LD19 | | 18.1 | 2.86 | 0 | | | 0 | | | | | | 10.22 | 32 | 149 | | | 10.52 | | 4.43 | 13.78 | | | |
| ERCI4 | Roberts Creek 2 NE Elkader 2NE | 748.62 | | | | | | | | | | | | | | | | | | | | | | | |
| ETRI4 | Stantion - East Tarkio Creek | 0.66 | | | | | | | | | | | | | | | | | | | | | | | |
| FAII4 | Mississippi River AT Fairport | 10.61 | | | 3.62 | | | 0 | | | | | | | | | | | | | | | | | |
| FAXI4 | Fairfax - Prairie Creek | 739.7 | | | | | | | | | | | | | | | | | | | | | | | |
| FDDI4 | Des Moines River 4 NW IFC--Fort Dodge Hwy D14 | 991.69 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| FERI4 | Winnebago River 0 S IFC--Fertile S 1st St | 1152.12 | | | | | | | | | | | | | | | | | | | | | | | |
| FLDI4 | Fruitland Pool 17 | | 8.68 | | | | | | | | | | | | | | | | | | | 12.41 | | | |
| FLMI4 | Le Mars | 1190.91 | | | | | | | | | | | | | | | | | | | | | | | |
| FLNI4 | North Fork Maquoketa River 3 WNW Fulton | 2.5 | | | | | | | | | | | | | | | | | | | | | | | |
| FLZI4 | Lizard Creek 5 WNW Fort Dodge | 25.5 | | | | | | | | | | | | | | | | | | | | | | | |
| FMDI4 | Mississippi River AT Fort Madison | 525.19 | | | 85.04 | | | 0 | | | | | | | | | | | | | | | | | |
| FODI4 | Des Moines River 2 WNW Fort Dodge | 4.04 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| FRAI4 | Des Moines River 0 SSW IFC--Fraser Kale Rd | 882.92 | | | | | | | | | | | | | | | | | | | | | | | |
| FREI4 | Freeport - Upper Iowa River | 829.95 | | | | | | | | | | | | | | | | | | | | | | | |
| FRSI4 | Maurice - Struble | 1244.17 | | | | | | | | | | | | | | | | | | | | | | | |
| FSTI4 | Brockcamp Creek AT Festina | 989.65 | | | | | | | | | | | | | | | | | | | | | | | |
| FTKI4 | Fort Atkinson - Turkey River | 1000.22 | | | | | | | | | | | | | | | | | | | | | | | |
| GENI4 | Muscatine - Geneva Creek | 587.89 | | | | | | | | | | | | | | | | | | | | | | | |
| GLBI4 | Gilbert - Montgomery Creek | 965.47 | | | | | | | | | | | | | | | | | | | | | | | |
| GLDI4 | Boone River 2 WSW Goldfield | 8.82 | | | 31.64 | | | 0 | | | | | | | | | | | | | | | | | |
| GMDI4 | Garrison - Mud Creek | 847.35 | | | | | | | | | | | | | | | | | | | | | | | |
| GMUI4 | Garrison - Mud Creek | 912.53 | | | | | | | | | | | | | | | | | | | | | | | |
| GNEI4 | Green - Shell Rock River | 948.53 | | | | | | | | | | | | | | | | | | | | | | | |
| GOLI4 | Goldfield - Boone River | 1078.18 | | | | | | | | | | | | | | | | | | | | | | | |
| GPKI4 | Alpha - Gouldsburg County Park | 986.62 | | | | | | | | | | | | | | | | | | | | | | | |
| GRBI4 | Turkey River AT Garber | -19.76 | | | 0 | | | 0 | | | | | | | 32.2 | | | | | | | | 0 | | |
| GRMI4 | Beaver Creek 3 E Grimes | 3.98 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| GTTI4 | Mississippi River AT Guttenberg Dam 10 | | 610.77 | 6.35 | | | | | | | | | | | | | | | | | | 14.06 | | | |
| HAVI4 | Richland Creek 1 NNE Haven | 10.94 | | | 59.11 | | | 0 | | | | | | | | | | | | | | 12.62 | | | |
| HBTI4 | West Fork Des Moines River 0 WSW Humboldt | 3.58 | | | 1.54 | | | 0 | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| HILI4 | Hills - Iowa River | 616.69 | | | | | | | | | | | | | | | | | | | | | | | |
| HMBI4 | Nishnabotna River 1 E Hamburg | 9.52 | | | 35.5 | | | 0 | | | | | | | | | | | | | | | | | |
| HMCI4 | Homestead - Clear Creek | 755.9 | | | | | | | | | | | | | | | | | | | | | | | |
| HMTI4 | Homestead - Clear Creek Trib | 739.1 | | | | | | | | | | | | | | | | | | | | | | | |
| HNKI4 | West Nishnabotna River AT Hancock | 2.74 | | | 0.35 | | | 0 | | | | | | | | | | | | | | | | | |
| HRTI4 | Walnut Creek 4 NNW Hartwick | 1.44 | | | | | | | | | | | | | | | | | | | | | | | |
| HTCI4 | Tipton Creek 5 NNW IFC--Hubbard 230th St | 1084.28 | | | | | | | | | | | | | | | | | | | | | | | |
| HWDI4 | Big Sioux River 2 N Hawarden | 12.02 | | | 45.25 | | | 0 | | | | | | | | | | | | | | | | | |
| HWOI4 | Hiawatha - Otter Creek | 742.37 | | | | | | | | | | | | | | | | | | | | | | | |
| ICBI4 | Council Bluffs - Indian Creek | 1031.43 | | | | | | | | | | | | | | | | | | | | | | | |
| ICLI4 | Nodaway River 1 E Clarinda | 10.77 | | | 4.87 | | | 0 | | | | | | 9.03 | | | | | | | | | | | |
| ICWI4 | Iowa City - Willow Creek | 661.61 | | | | | | | | | | | | | | | | | | | | | | | |
| IDNI4 | Middle River 5 NNW Indianola | 7.44 | | | 18.85 | | | 0 | | | | | | | | | | | | | | | | | |
| IDPI4 | Wapsipinicon River AT Independence | 5.54 | | | 70.1 | | | 0 | | | | | | | | | | | | | | | | | |
| IFAI4 | Iowa Falls - Iowa River | 1064.56 | | | | | | | | | | | | | | | | | | | | | | | |
| IOCI4 | Old Mans Creek 5 SW Iowa City SW | 2.21 | | | | | | | | | | | | | | | | | | | | | | | |
| IOWI4 | Iowa City - Iowa River | 11.17 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| IRCI4 | Rapid Creek 4 NE Iowa City NE | 3.62 | | | 72.95 | | | 0 | | | | | | | | | | | | | | 12.73 | | | |
| IWNI4 | West Nishnabotna River 0 ENE Irwin Cora St | 1236.78 | | | | | | | | | | | | | | | | | | | | | | | |
| JCOI4 | Jerico -Crane Creek | 1142.85 | | | | | | | | | | | | | | | | | | | | | | | |
| JDAI4 | West Des Moines | | | | | | | | | | | | | | | | | | | | | | | | |
| JEWI4 | Mud Lake Drainage Ditch 71 1 N Jewell | 80.87 | | | | | | | | | | | | | | | | | | | | | | | |
| JMEI4 | Floyd River 1 NE James | 9.37 | | | 53.36 | | | 0 | | | | | | | | | | | | | | | | | |
| KALI4 | English River 1 SSW Kalona | 4.34 | | | | | | | | | | | | | | | | | | | | | | | |
| KCQI4 | Keosauqua - Chequest Creek | 621 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| KECI4 | English Creek 4 ESE Knoxville | 8.14 | | | 7.23 | | | 0 | | | | | | | | | | | | | | | | | |
| KEQI4 | Des Moines River AT Keosauqua | 11.75 | | | | | | | | | | | | | | | | | | | | | | | |
| KESI4 | Kesley - EF Cedar River | 945.41 | | | | | | | | | | | | | | | | | | | | | | | |
| KLGI4 | North Skunk River 3 SE IFC--Kellogg S 12th Ave E | 810.15 | | | | | | | | | | | | | | | | | | | | | | | |
| KMRI4 | Kamrar | | | | | | | | 0 | | | | | | | | | | | | | | | | |
| KRSI4 | Kinross - South English | 686.72 | | | | | | | | | | | | | | | | | | | | | | | |
| LADI4 | Big Bear Creek AT Ladora | 11.63 | | | 0 | | | 0 | | | | | | | | | | | | | | 12.23 | | | |
| LAKI4 | Lake Creek 3 W IFC--Lake City IA 175 | 1104.71 | | | | | | | | | | | | | | | | | | | | | | | |
| LAPI4 | Wolf Creek 0 WNW IFC--La Porte City W Main St | 806.5 | | | | | | | | | | | | | | | | | | | | | | | |
| LARI4 | Larrabee - Mill Creek | 1232.53 | | | | | | | | | | | | | | | | | | | | | | | |
| LCYI4 | Lacey - Middle Creek | 75.29 | | | | | | | | | | | | | | | | | | | | | | | |
| LECI4 | Mississippi River AT Le Claire LD14 | | 14.5 | 4.73 | 0 | | | 0 | | | | | | 2.22 | 32.2 | 278 | | | 14.56 | | 9.34 | 12.87 | | | |
| LELI4 | Winnebago River 0 NNE IFC--Leland Hwy A38 | 1209.23 | | | | | | | | | | | | | | | | | | | | | | | |
| LFSI4 | Sanborn 4W - Little Floyd River | 82.46 | | | | | | | | | | | | | | | | | | | | | | | |
| LGNI4 | Boyer River AT Logan | 5 | | | 24.59 | | | 0 | | | | | | | | | | | | | | | | | |
| LKCI4 | North Raccoon River 2 WSW Lanesboro | 10.13 | | | 66.25 | | | 0 | | | | | | | | | | | | | | | | | |
| LMCI4 | Lester - Mud Creek | 1365.87 | | | | | | | | | | | | | | | | | | | | | | | |
| LMRI4 | Floyd River AT Le Mars | 10.06 | | | | | | | | | | | | | | | | | | | | | | | |
| LNNI4 | Little Sioux River AT Linn Grove | 5.81 | | | 76.66 | | | 0 | | | | | | | | | | | | | | | | | |
| LNSI4 | Mississippi River AT Lansing | 8.2 | 620.46 | | | | | | | | | | | | | | | | | | | | | | |
| LNTI4 | Iowa River 5 SW Lone Tree | 8.02 | | | 0.13 | | | 0 | | | | | | | | | | | | | | | | | |
| LPRI4 | West Fork Little Sioux River 3 SE Lake Park | 1391.96 | | | | | | | | | | | | | | | | | | | | | | | |
| LRGI4 | Little Rock River - George Ibex | 1301.96 | | | | | | | | | | | | | | | | | | | | | | | |
| LRHI4 | Troublesome Creek 4 E IFC--Lorah Troublesome Creek Rd | 1185.61 | | | | | | | | | | | | | | | | | | | | | | | |
| LSMI4 | Milford | 1364.61 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| LSSI4 | Spencer 4 NW | | | | 8.11 | | | 0 | | | | | | | | | | | | | | | | | |
| LTNI4 | Littleton - Little Wapsipinicon River | 928.58 | | | | | | | | | | | | | | | | | | | | | | | |
| MAAI4 | Massena - West Nodaway River | 65.78 | | | | | | | | | | | | | | | | | | | | | | | |
| MACI4 | Marion - Indian Creek | 811.28 | | | | | | | | | | | | | | | | | | | | | | | |
| MANI4 | Shell Rock River 3 N IFC--Plymouth IA 9 | 1126.42 | | | | | | | | | | | | | | | | | | | | | | | |
| MAPI4 | Maple River AT Mapleton | 5.3 | | | 57.75 | | | 0 | | | | | | | | | | | | | | | | | |
| MAQI4 | Maquoketa River 2 NE Maquoketa | 10.49 | | | | | | | | | | | | | | | | | | | | 12.47 | | | |
| MASI4 | Spring Creek 4 N Mason City US 65 | 81.09 | | | | | | | | | | | | | | | | | | | | 12.52 | | | |
| MAYI4 | May City | 1421.12 | | | | | | | | | | | | | | | | | | | | | | | |
| MBNI4 | North Raccoon River 2 WSW IFC--Minburn Minburn Rd | 898.43 | | | | | | | | | | | | | | | | | | | | | | | |
| MBRI4 | Marquette | 3.95 | | | 50.82 | | | 0 | | | | | | | | | | | | | | | | | |
| MCBI4 | Mosquito Creek 4 ENE Council Bluffs | 991.57 | | | | | | | | | | | | | | | | | | | | | | | |
| MCCI4 | Cheslea Creek 2 SW IFC--Mason City 19th St SW | 1136.53 | | | | | | | | | | | | | | | | | | | | | | | |
| MCGI4 | Mississippi River AT McGregor | 9.33 | | | 33 | | | | | | | | | | | | | | | | | | | | |
| MCHI4 | Maquoketa River AT Manchester Hwy 20 | 4.18 | | | 61.77 | | | 0 | | | | | | | | | | | | | | 12.39 | | | |
| MCKI4 | Winnebago River 7 NW IFC--Mason City Killdeer Ave | 1112.22 | | | | | | | | | | | | | | | | | | | | | | | |
| MCWI4 | Winnebago River 1 NNE Mason City | 5.32 | | | 7 | | | 0 | | | | | | | | | | | | | | | | | |
| MDCI4 | Muscatine - Mad Creek No2 | 616.83 | | | | | | | | | | | | | | | | | | | | | | | |
| MELI4 | Merrill County - Floyd River | 1154.35 | | | | | | | | | | | | | | | | | | | | | | | |
| MERI4 | Merrimac | 579.25 | | | | | | | | | | | | | | | | | | | | | | | |
| MGOI4 | Indian Creek 3 NNW Mingo | 3.87 | | | 21.27 | | | 0 | | | | | | | | | | | | | | 12.18 | | | |
| MHYI4 | Manchester 3NNE - Honey Creek | 945.32 | | | | | | | | | | | | | | | | | | | | | | | |
| MIFI4 | Little Sioux River 3 W Milford | 7.52 | | | | | | | | | | | | | | | | | | | | | | | |
| MIGI4 | Maple River AT Ida Grove | 1199.93 | | | | | | | | | | | | | | | | | | | | | | | |
| MIWI4 | Iowa River 1 N Marshalltown | 12.51 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| MKCI4 | Keg Creek 1 WSW Mineola Hwy H12 | 997.93 | | | | | | | | | | | | | | | | | | | | | | | |
| MLSI4 | Little Sioux River 2 NW Montgomery | 1386.35 | | | | | | | | | | | | | | | | | | | | | | | |
| MNEI4 | Mosquito Creek 1 NNE Neola | 1077.91 | | | | | | | | | | | | | | | | | | | | | | | |
| MNTI4 | Monticello - Maquoketa Creek | 797.18 | | | | | | | | | | | | | | | | | | | | | | | |
| MPZI4 | MOUNT PLEASANT 1 SSW [CCOOP] | | | | 7.31 | | | | | | | | | 3.2 | | | | | | | | 12.6 | | | |
| MRBI4 | Shell Rock River 2 SSE IFC--Marble Rock 290th St | 948.86 | | | | | | | | | | | | | | | | | | | | | | | |
| MRGI4 | Maple River AT Galva | 1253.62 | | | | | | | | | | | | | | | | | | | | | | | |
| MRLI4 | MERRILL | 1.05 | | | | | | | | | | | | | | | | | | | | | | | |
| MROI4 | Iowa River AT Marengo | 8.36 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| MSVI4 | Boyer River 2 ENE Missouri Valley | 1000.57 | | | | | | | | | | | | | | | | | | | | | | | |
| MSWI4 | Willow Creek 0 WSW IFC--Mason City 1st St SW | 1102.05 | | | | | | | | | | | | | | | | | | | | | | | |
| MTCI4 | Camp Creek 5 S IFC--Mitchellville IA 163 | 812.18 | | | | | | | | | | | | | | | | | | | | | | | |
| MTWI4 | Timber Creek 4 SE Marshalltown | 3.25 | | | 17.06 | | | 0 | | | | | | | | | | | | | | | | | |
| MUDI4 | Mud Creek 5 WSW Henderson | 1026.28 | | | | | | | | | | | | | | | | | | | | | | | |
| MUSI4 | Mississippi River AT Muscatine | 6.41 | | | 237 | | | 0 | | | | | | | | | | | | | | | | | |
| MUTI4 | Muscatine - Mad Creek | 570.33 | | | | | | | | | | | | | | | | | | | | | | | |
| MUVI4 | Vinton - Mud Creek | 819.76 | | | | | | | | | | | | | | | | | | | | | | | |
| MXII4 | East Indian Creek 4 N IFC--Maxwell Hwy S27 | 886.21 | | | | | | | | | | | | | | | | | | | | | | | |
| NEPI4 | English River 4 S Parnell | 13.98 | | | 1.72 | | | 0 | | | | | | | | | | | | | | 10.93 | | | |
| NHRI4 | Beaver Creek 0 NNE New Hartford | 5.08 | | | 78.73 | | | 0 | | | | | | | | | | | | | | | | | |
| NRSI4 | Shell Rock River 2 NW IFC--Nora Springs 277th St | 1053.88 | | | | | | | | | | | | | | | | | | | | | | | |
| NRWI4 | North River 2 SE Norwalk | 5.74 | | | | | | | | | | | | | | | | | | | | | | | |
| NSSI4 | Prairie City | | | | | | 0 | | | | | | 0 | 2.93 | | | 20.29 | | | 13.06 | 11.85 | 13.67 | | | 71 |
| NUAI4 | Little Cedar River AT Nashua | 947.77 | | | | | | | | | | | | | | | | | | | | | | | |
| NWSI4 | North Washington 1SSE - Little Wapsi | 1090.15 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| NWVI4 | New Vienna - NF Maquoketa River | 982.49 | | | | | | | | | | | | | | | | | | | | | | | |
| OAMI4 | Oakland Mills - Skunk River | 561.33 | | | | | | | | | | | | | | | | | | | | | | | |
| OKMI4 | Oakland Mills 3W - Cedar Creek | 3.08 | | | 105.39 | | | 0 | | | | | | | | | | | | | | 12.64 | | | |
| OKVI4 | Iowa River AT Oakville | 2.54 | | | | | | | | | | | | | | | | | | | | | | | |
| OLII4 | Olin 1N - Wapsipinicon River | 737.39 | | | | | | | | | | | | | | | | | | | | | | | |
| OOAI4 | South Skunk River 4 N Oskaloosa | 9.42 | | | 0 | | | 0 | | | | | | | | | | | | | | 12.34 | | | |
| OREI4 | Ocheyedan River 3 NW Everly | 1356.79 | | | | | | | | | | | | | | | | | | | | | | | |
| ORNI4 | Oran - Little Wapsi | 82.71 | | | | | | | | | | | | | | | | | | | | | | | |
| OSCI4 | Slough Creek 3 SE Orchard 3SE | 1095.9 | | | | | | | | | | | | | | | | | | | | | | | |
| OSGI4 | Osage 2 W | 1065.95 | | | | | | | | | | | | | | | | | | | | | | | |
| OSPI4 | Osage - Spring Creek Hwy 9 | 1136.02 | | | | | | | | | | | | | | | | | | | | | | | |
| OSRI4 | Rock Creek 6 W Osage 6W | 1137.18 | | | | | | | | | | | | | | | | | | | | | | | |
| OTRI4 | Cedar River 3 N Otranto | 1131.64 | | | | | | | | | | | | | | | | | | | | | | | |
| OTVI4 | Otterville - Otter Creek | 907.39 | | | | | | | | | | | | | | | | | | | | | | | |
| OWBI4 | Beaver Creek 2 NNW IFC--Owasa 170th St | 1082.35 | | | | | | | | | | | | | | | | | | | | | | | |
| OWSI4 | South Beaver Creek 3 WSW IFC--Owasa US 65 | 1087.83 | | | | | | | | | | | | | | | | | | | | | | | |
| OYEI4 | Owens County - Willow Creek | 1254.24 | | | | | | | | | | | | | | | | | | | | | | | |
| PABI4 | Palo - Bear Creek | 738.96 | | | | | | | | | | | | | | | | | | | | | | | |
| PADI4 | Palo - Dry Creek | 737.39 | | | | | | | | | | | | | | | | | | | | | | | |
| PANI4 | Middle Raccoon River 1 SW Panora | 4.22 | | | 39.04 | | | 0 | | | | | | | -183.4 | | | | | | | 12.49 | | | |
| PARI4 | Beaver Creek 3 E IFC--Parkersburg Hwy T47 | 910.43 | | | | | | | | | | | | | | | | | | | | | | | |
| PCHI4 | Perry Creek 4 W Hinton | 15.33 | | | 36.85 | | | 0 | | | | | | | | | | | | | | 11.87 | | | |
| PELI4 | Des Moines River 4 SW Red Rock Reservoir | | 744.35 | | | | | | | | | | | | | | | | | | | 13.66 | | | |
| PFLI4 | Cedar River 1 E IFC--Plainfield IA 188 | 922.76 | | | | | | | | | | | | | | | | | | | | | | | |
| PKFI4 | Packard 2ENE - Flood Creek | 939.94 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| PLEI4 | Spring Creek 4 ESE IFC--Pleasant Hill SE 32nd Ave | 780.48 | | | | | | | | | | | | | | | | | | | | | | | |
| PLHI4 | Fourmile Creek 1 S IFC--Pleasant Hill Vandalia Rd | 769.25 | | | | | | | | | | | | | | | | | | | | | | | |
| PLKI4 | Big Creek Lake 2 NNW Polk City | 14.28 | | | 1.25 | | | 0 | | | | | | | | | | | | | | 10.93 | | | |
| PLMI4 | Mud Creek 6 E IFC--Pleasant Hill IA 163 | 816.18 | | | | | | | | | | | | | | | | | | | | | | | |
| PLOI4 | Cedar River AT Palo Blairs Ferry Rd | 6.61 | | | 0 | | | 0 | | | | | | | -2327.3 | | | | | | | | | | |
| PMDI4 | Bluff Creek 0 NW Pilot Mound | 80.82 | | | | | | | | | | | | | | | | | | | | | | | |
| PNBI4 | Burchfield Creek 4 NNW IFC--Panora Sage Trl | 1045.8 | | | | | | | | | | | | | | | | | | | | | | | |
| PNLI4 | Lake Panorama 1 WNW Panora | | 45.39 | | | | | | | | | | | | | | | | | | | 13.12 | | | |
| PRAI4 | Prairieburg 3 S | 834.26 | | | | | | | | | | | | | | | | | | | | | | | |
| PRMI4 | South Fork Chariton River 4 NNW Promise City | 3.08 | | | | | | | | | | | | | | | | | | | | | | | |
| PROI4 | North Raccoon River 1 W Perry | 4.79 | | | 1.94 | | | 0 | | | | | | | | | | | | | | 11.56 | | | |
| PSGI4 | Soldier River AT Pisgah | 3.29 | | | 0 | | | 0 | | | | | | 38.84 | | | | | | | | 12.18 | | | |
| QTNI4 | Quasqueton - Wapsipinicon River | 861.97 | | | | | | | | | | | | | | | | | | | | | | | |
| RABI4 | Chariton River 1 N Rathbun | 2.18 | | | | | | | | | | 0.00968 | | | | | | | | | | | | | |
| RAPI4 | Rock River AT Rock Rapids | 7.19 | | | 25.07 | | | 0 | | | | | | | | | | | | | | | | | |
| RBDI4 | Robins - Dry Creek | 843.6 | | | | | | | | | | | | | | | | | | | | | | | |
| RDFI4 | Middle Raccoon River 0 W IFC--Redfield Hwy F59 | 910.12 | | | | | | | | | | | | | | | | | | | | | | | |
| RDOI4 | East Nishnabotna River AT Red Oak | 6.09 | | | 23.84 | | | 0 | | | | | | | | | | | | | | | | | |
| RDPI4 | West Nishnabotna River 1 W Randolph | 8.24 | | | 22.73 | | | 0 | | | | | | 8.96 | 31.9 | | | | | | | | | | |
| RIVI4 | Riverdale - Duck Creek | 562.87 | | | | | | | | | | | | | | | | | | | | | | | |
| RKDI4 | Rickardsville - Maquoketa | 8.81 | | | | | | | | | | | | | | | | | | | | | | | |
| RKFI4 | Rockford 3 SSE | 972.06 | | | | | | | | | | | | | | | | | | | | | | | |
| RKVI4 | Rock River AT Rock Valley | 5.25 | | | | | | | | | | | | | | | | | | | | | | | |
| RLFI4 | Pilot Creek 3 E Rolfe | 2.52 | | | 26.8 | | | 0 | | | | | | | | | | | | | | | | | |
| RNDI4 | Houghton - Volga River Hwy93 | 1084.11 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| RNSI4 | South Skunk River 2 SSE IFC--Randall Hwy R61 | 975.41 | | | | | | | | | | | | | | | | | | | | | | | |
| ROLI4 | Roland - Bear Creek | 955.83 | | | | | | | | | | | | | | | | | | | | | | | |
| ROWI4 | Iowa River 4 WNW Rowan | 6.09 | | | 36.4 | | | 0 | | | | | | | | | | | | | | | | | |
| RRDI4 | Des Moines River 4 SW Pella | | | 85.53 | | | | | | | | 3.11 | | | 32.3 | | | | | | | | | | |
| RRMI4 | Red Rock Dam | | | | 2.15 | | | 0 | | | | | | 4.17 | | 282 | | 11.58 | | | 5.5 | 13.71 | | | |
| RSRI4 | Rochester - Cedar River | 639.52 | | | | | | | | | | | | | | | | | | | | | | | |
| SARI4 | North Raccoon River 3 NNW IFC--Sac City 230th St | 1195.36 | | | | | | | | | | | | | | | | | | | | | | | |
| SAYI4 | Des Moines River 4 WNW Saylorville Reservoir | | 838.85 | | 25.75 | | | 0 | | | | | | | | 331 | | | | | 22 | 14.88 | | | |
| SCRI4 | North Raccoon River 5 S Sac City | 9.09 | | | 18.15 | | | 0 | | | | | | | | | | | | | | 11.87 | | | |
| SDEI4 | Saude - Little Turkey River | 1119.3 | | | | | | | | | | | | | | | | | | | | | | | |
| SDTI4 | Des Moines River 2 W Saylorville | | | 4.04 | | | | | | | | 1.76 | | | | | | | | | | 12.49 | | | |
| SFLI4 | Sheffield 11SE - WF Cedar River | 991.38 | | | | | | | | | | | | | | | | | | | | | | | |
| SFRI4 | Sheldon | 1367.41 | | | | | | | | | | | | | | | | | | | | | | | |
| SHLI4 | Floyd River 1 N Sheldon | 5.41 | | | | | | | | | | | | | | | | | | | | | | | |
| SIGI4 | North Skunk River 2 S Sigourney | 5.37 | | | 49 | | | 0 | | | | | | | | | | | | | | | | | |
| SILI4 | Silver Creek AT Silver City Dobney Ave | 1005.51 | | | | | | | | | | | | | | | | | | | | | | | |
| SIOI4 | Perry Creek AT Sioux City | 6.63 | | | 23.66 | | | 0 | | | | | | | | | | | | | | | | | |
| SLFI4 | Sutliff - Cedar River | 670.9 | | | | | | | | | | | | | | | | | | | | | | | |
| SLKI4 | Spirit Lake 2 NW Orleans | | 13.93 | | 20.11 | | | 0 | | | | | | | | | | | | | | | | | |
| SPGI4 | Spring Run Creek | 1398.33 | | | | | | | | | | | | | | | | | | | | | | | |
| SPII4 | Little Sioux River 3 NW Spencer / Highway 18 | 1316.92 | | | | | | | | | | | | | | | | | | | | | | | |
| SPLI4 | Turkey River AT Spillville | 4.24 | | | 13.11 | | | 0 | | | | | | | | | | | | | | | | | |
| SPOI4 | Ocheyedan River 3 SW Spencer | 2.64 | | | 22.97 | | | | | | | | | | | | | | | | | | | | |
| SPVI4 | Spillville - Turkey River | 1060.46 | | | | | | | | | | | | | | | | | | | | | | | |
| SRLI4 | Storm Lake at Storm Lake | | 13.92 | | | | | | | | | | | | 0.4 | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| STBI4 | Iowa River 0 WSW Steamboat Rock | 6.01 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| STCI4 | Story City - Keigley Branch | 82.95 | | | | | | | | | | | | | | | | | | | | | | | |
| STRI4 | Des Moines River 4 WSW Stratford | 5.8 | | | 10.19 | | | 0 | | | | | | | | | | | | | | | | | |
| STUI4 | STRUBLE 2 N | 4.77 | | | | | | | | | | | | | | | | | | | | | | | |
| SWCI4 | Sutherland - Waterman Creek 470th | 1233.47 | | | | | | | | | | | | | | | | | | | | | | | |
| SWNI4 | Des Moines River 2 NE Swan | 47.04 | | | 11.91 | | | 0 | | | | | | | | | | | | | | | | | |
| SXCI4 | Big Sioux River AT Sioux City | 7.46 | | | 78.05 | | | 0 | | | | | | | | | | | | | | 12.5 | | | |
| TAMI4 | Iowa River 1 S Tama US 63 | 9.04 | | | 28.92 | | | 0 | | | | | | | | | | | | | | 11.56 | | | |
| TARI4 | Raven Creek 5 W IFC--Tama Hwy E49 | 823.94 | | | | | | | | | | | | | | | | | | | | | | | |
| TCGI4 | Turkey River 3 SE Cresco | 1121.77 | | | | | | | | | | | | | | | | | | | | | | | |
| TENI4 | Turkey River 8 NW 10 Mile Bridge 8NW Elkader | 758.22 | | | | | | | | | | | | | | | | | | | | | | | |
| TFGI4 | Tiffin - Buffalo Creek | 701.26 | | | | | | | | | | | | | | | | | | | | | | | |
| TFII4 | Tiffin - Buffalo Creek - Ireland Ave | 729.23 | | | | | | | | | | | | | | | | | | | | | | | |
| TMAI4 | Iowa River 3 W Tama Hwy E49 | 3.22 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| TOLI4 | Deer Creek 1 WNW Toledo | 4.61 | | | 54.94 | | | 0 | | | | | | | | | | | | | | 10.93 | | | |
| TPTI4 | Brushy Fork Creek 4 ENE Templeton | 67.04 | | | | | | | | | | | | | | | | | | | | | | | |
| TRAI4 | Traer - Coon Creek | 881.85 | | | | | | | | | | | | | | | | | | | | | | | |
| TRCI4 | Des Moines River 1 ENE Tracy | 3.76 | | | 11.48 | | | 0 | | | | | | | | | | | | | | | | | |
| TRKI4 | Elliot - Tarkio River | 1.7 | | | | | | | | | | | | | | | | | | | | | | | |
| TRNI4 | Monona-Harrison Ditch 4 SSW Turin | 4.66 | | | 48.25 | | | 0 | | | | | | | | | | | | | | 12.18 | | | |
| TURI4 | Little Sioux River 4 SSE Turin | 8.99 | | | 45.28 | | | 0 | | | | | | | | | | | | | | | | | |
| UBMI4 | North Walnut Creek at Urbandale Meredith | | | | | | | | | | | | | | | | | | | | | | | | |
| UBWI4 | Walnut Creek 5 W Urbandale 142nd St | | | | | | | | | | | | | | | | | | | | | | | | |
| UIDI4 | Upper Iowa River 3 NW Decorah 3NW | 887.82 | | | | | | | | | | | | | | | | | | | | | | | |
| ULDI4 | Delhi 4W - Upper Lake Delhi | 896.88 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| URBI4 | North Walnut Creek 1 SW IFC--Urbandale Hickman Rd | 833.91 | | | | | | | | | | | | | | | | | | | | | | | |
| VANI4 | Raccoon River 0 NE IFC--Van Meter Hwy R16 | 844.48 | | | | | | | | | | | | | | | | | | | | | | | |
| VGAI4 | Volga River AT Volga | 777.02 | | | | | | | | | | | | | | | | | | | | | | | |
| VIMI4 | Vinton - Mud Creek | 771.37 | | | | | | | | | | | | | | | | | | | | | | | |
| VNMI4 | Raccoon River 0 ENE Van Meter | 3.54 | | | 4.86 | | | 0 | | | | | | | -138.1 | | | | | | | 12.81 | | | |
| WADI4 | Volga River AT Wadena | 847.27 | | | | | | | | | | | | | | | | | | | | | | | |
| WAEI4 | Elk Run Creek 5 E IFC--Waterloo Independence Ave | 846.89 | | | | | | | | | | | | | | | | | | | | | | | |
| WAPI4 | Iowa River AT Wapello | 12.92 | | | 0 | | | 0 | | | | | | | | | | | | | | | | | |
| WAVI4 | Avoca 1W - West Nishnabotna River | 1114.45 | | | | | | | | | | | | | | | | | | | | | | | |
| WBCI4 | Boone River 3 SSE Webster City | 2.56 | | | 12.13 | | | 0 | | | | | | | | | | | | | | | | | |
| WBWI4 | West Branch - Wapsinonoc Creek | 2.63 | | | | | | | | | | | | | | | | | | | | | | | |
| WCBI4 | Waukee 156th St | | | | | | | | | | | | | | | | | | | | | | | | |
| WCDI4 | Waukee 2 NNW | | | | | | | | | | | | | | | | | | | | | | | | |
| WCRI4 | Walnut Creek SSW Olin-IFC-Walnut Creek - 35th St | 746.8 | | | | | | | | | | | | | | | | | | | | | | | |
| WCSI4 | Willow Creek 6 SE Soldier | | | | | | | | | | | | | | | | | | | | | | | | |
| WCWI4 | Little Walnut Creek 6 WNW IFC--Clive 156th St | 897.43 | | | | | | | | | | | | | | | | | | | | | | | |
| WDMI4 | Raccoon River 5 SW West Des Moines | | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | |
| WFCI4 | Washington 2SW - WF Crooked Crrek | 660.2 | | | | | | | | | | | | | | | | | | | | | | | |
| WFMI4 | West Fork Little Sioux River AT Moville | 1129.35 | | | | | | | | | | | | | | | | | | | | | | | |
| WISI4 | Riverton - West Nishnabotna J46 | 912.78 | | | | | | | | | | | | | | | | | | | | | | | |
| WLMI4 | Williamsburg - Clear Creek Trib | 771.11 | | | | | | | | | | | | | | | | | | | | | | | |
| WLRI4 | Walnut Creek 6 E IFC--Runnells Adkins St | 756.92 | | | | | | | | | | | | | | | | | | | | | | | |
| WLSI4 | Welsh Lake | 1396.23 | | | | | | | | | | | | | | | | | | | | | | | |
| WLTI4 | Welton - Silver Creek | 81.1 | | | | | | | | | | | | | | | | | | | | | | | |
| WONI4 | Spillville - Wonder Creek | 1059.35 | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPC | PPE | PPH | PPJ | PPQ | PPT | QRI | RWI | TAI | TWI | UDI | UPH | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| WUOI4 | West Union - Otter Creek | 1082.25 | | | | | | | | | | | | | | | | | | | | | | | |
| WVLI4 | Cedar River 1 NNE Waverly | 5.1 | | | 0.81 | | | 0 | | | | | | | 33.5 | | | | | | | | | 0.44 | |
| WWDI4 | Beaver Creek 4 SSW Woodward | 11.74 | | | 2.28 | | | 0 | | | | | | | | | | | | | | 11.24 | | | |
| WYOI4 | Wyoming - Bear Creek | 793.3 | | | | | | | | | | | | | | | | | | | | | | | |