| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| AESI4 | South Skunk River 2 SSE Ames US 30 | 14.64 | | | | | | 33.94 | | 0 | | | | 2.06 | | | | | | | | | | | | | | | |
| AGNI4 | East Fork Des Moines River 1 N Algona | 12.5 | | | | | | 32.36 | | 0 | | | | 1.46 | | | | | | | | | | | | | | | |
| AKNI4 | Fourmile Creek 3 N Ankeny US 69 | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| AKRI4 | Big Sioux River 1 NW Akron | 6.39 | | | | | | 94.18 | | 0 | | | | 1.09 | | | | | | | | | | | | | | | |
| AKWI4 | South River 2 SSW Ackworth | 6.08 | | | | | | 5.75 | | 0 | | | | | | | | | | | | | | | | 12.18 | | | |
| ALMI4 | Fourmile Creek near Alleman NW 142nd | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| ALOI4 | Cedar River 0 ENE Waterloo | 10.87 | | | | | | 109.06 | | 0 | | | | 19.8 | | | | | | | | | | | | | | | |
| ALTI4 | Floyd River AT Alton | 6.42 | | | | | | 76.35 | | 0 | | | | | | | | | | | | | | | | 12.49 | | | |
| AMAI4 | Amana - Price Creek USGS | 80.31 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| AMEI4 | South Skunk River 2 N Ames W Riverside Rd | 6.59 | | | | | | 23.01 | | 0 | | | | 1.37 | | | | | | | | | | | | | | | |
| AMMI4 | AMES SCAN | | | | 45.5 | 0.3 | 55.6 | | | | | | | | 10.6 | 38.7 | 37.6 | 42 | | 128 | | | | 16.5 | 23.5 | | | | 71 |
| AMWI4 | Ames 1SSW - Ioway Creek at Lincoln Way | 3.2 | | | | | | | | | | | | 0.565 | | | | | | | | | | | | | | | |
| ANKI4 | Fourmile Creek 2 ESE Ankeny NE 86th Ave | 2.58 | | | | | | | | | | | | | | | | | | | | | | | | 12.49 | | | |
| ANSI4 | Wapsipinicon River 1 SE Anamosa Shaw Rd | 11.42 | | | | | | 35.79 | | 0 | | | | | | | | | | | | | | | | | | | |
| ATCI4 | East Nishnabotna River 5 SW Atlantic | 4.03 | | | | | | 45.75 | | 0 | | | | 0.52 | | | | | | | | | | | | | | | |
| ATNI4 | Altoona I-80 | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| BAYI4 | Middle Raccoon River 6 SE Bayard | 11.73 | | | | | | 2.53 | | 0 | | | | 0.53 | | | | | | | | | | | | 12.18 | | | |
| BHLI4 | Black Hawk Lake 1 SE Lake View | | 8.04 | | | | | | | | | | | | | | | | | | | | | | | | | | |
| BIGI4 | Polk City 1SE - Big Creek Pounding | 38.56 | | | | | | 5.31 | | 0 | | | | | | | | | | | | | | | | 13.12 | | | |
| BLBI4 | Blairsburg | | | | | | | | | | 0 | | | | | | | | | | | | | | | | | | |
| BLII4 | South Fork Iowa River 5 NNE Blairsburg | 5.74 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| BLVI4 | Mississippi River AT Bellevue LD12 | | 11.77 | 11.41 | | | | 3.53 | | 0 | | | | | | | 44.54 | | 44.9 | | 174 | | 11.27 | | 6.65 | 13.71 | | | |
| BOCI4 | Burr Oak Creek 4 N Perkins | 12.14 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| BPLI4 | Iowa River 3 S Belle Plaine | 15.38 | | | | | | 87.12 | | 0 | | | | | | | | | | | | | | | | | | | |
| BRLI4 | Mississippi River AT Burlington | 14.11 | | | | | | 11.99 | | 0 | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| BSSI4 | Cedar Creek 2 NW Bussey | 5.07 | | | | | | 5.65 | | 0 | | | | | | | | | | | | | | | | | | | |
| BTDI4 | West Main Drainage Ditch 1 & 2 1 ENE Britt | 75.96 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| CBSI4 | Beaver Slough AT Clinton 3rd St | 15.88 | | | | | | | | | | | | | | | | | 48.1 | | | | | | | | | | |
| CCYI4 | Cedar River AT Charles City | 5.77 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | | | | |
| CEBI4 | Cedar River AT Cedar Bluff | 12.29 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | | | | |
| CIDI4 | Cedar Rapids - Cedar River No 2 | 10.17 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| CJTI4 | Iowa River AT Columbus Jct | 16.33 | | | | | | 1.27 | | 0 | | | | | | | | | | | | | | | | | | | |
| CLKI4 | Clear Lake 0 SW Clear Lake | | 4.78 | | | | | 19.4 | | 0 | | | | | | | | | | | | | | | | | | | |
| CLLI4 | Middle Raccoon River Tributary 2 SSW Carroll | 15.49 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| CLVI4 | Walnut Creek 3 WNW Clive I-80/35 | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| CMCI4 | Muddy Creek 2 NNE Coralville N | 2.29 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | | | | |
| CMMI4 | Mississippi River AT Camanche | 13.47 | | | | | | | | | | | | | | | | | 51.7 | | | | | | | | | | |
| CNEI4 | Cedar River 3 NE Conesville | 11.93 | | | | | | 0.34 | | 0 | | | | | | | | | | | | | | | | | | | |
| CRAI4 | Clear Creek 2 W Coralville SW | 1.53 | | | | | | 1.93 | | 0 | | | | | | | | | | | | | | | | | | | |
| CREI4 | Cedar Rapids - Cedar River at Edgewood Rd | 7.67 | | | | | | | | | | | | | | | | | | | | | | | | 12.81 | | | |
| CRRI4 | Little Sioux River 1 W Correctionville | 8.27 | | | | | | 28.6 | | 0 | | | | | | | | | | | | | | | | | | | |
| CRVI4 | Iowa River AT Coralville Dam | | 683.44 | | | | | 64.21 | | 0 | | | | | | | 41.18 | | | | 140 | 15.49 | | | 4.75 | | | | |
| CRWI4 | Crow Creek 3 NE Bettendorf Valley Rd | 3.7 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| CTWI4 | Iowa River AT Coralville Res Tail | | | 53.5 | | | | | | | | | | | | | | | | | | | | | | | | | |
| CWCI4 | Cornell 2NW - Willow Creek | 83.11 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| DAKI4 | East Fork Des Moines River 0 ENE Dakota City | 11.54 | | | | | | 14.93 | | 0 | | | | 2.36 | | | | | | | | | | | | | | | |
| DBQI4 | Mississippi River AT Dubuque | 12.2 | | | | | | 52.95 | | 0 | | | | | | | | | | | | | | | | | | | |
| DCHI4 | Upper Iowa River 4 S Dorchester Hwy 76 | 9.63 | | | | | | 7.55 | | 0 | | | | | | | | | | | | | | | | | | | |
| DEMI4 | Raccoon River 2 SW Des Moines Fleur Dr | | | | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | | | |
| DEPI4 | Deep River 1 NE Deep River | 67 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| DESI4 | Des Moines River 2 S Des Moines SE 6th St | 21.1 | | | | | | 3.25 | | 0 | | 0 | 0 | 23.6 | | | | | | | | | | | | 11.87 | | | |
| DEWI4 | Wapsipinicon River 4 S De Witt 4S | 10.81 | | | | | | 1.48 | | 0 | | | | | | | | | | | | | | | | | | | |
| DFMI4 | Fourmile Creek 3 ENE Des Moines Easton Blvd | 4.41 | | | | | | 13.59 | | 0 | | 0 | 0 | | | | | | | | | | | | | | | | |
| DLDI4 | Mississippi River AT Dubuque LD11 | | 14.77 | 10.18 | | | | 0 | | 0 | | | | | | | 43.83 | | 46.8 | | 141 | | 19.83 | | 15.45 | 13.83 | | | |
| DLLI4 | White Breast Creek 3 WNW Melcher-Dallas | 6.56 | | | | | | 6.34 | | 0 | | | | | | | | | | | | | | | | | | | |
| DMOI4 | Des Moines River 1 NW Des Moines 2nd Ave | 19.04 | | | | | | 2.91 | | 0 | | | | | | | | | 32 | | | | | | | 12.81 | | | |
| DMWI4 | Raccoon River 6 WSW Des Moines IA 28 | 27.19 | | | | | | 0 | | 0 | | 0 | 0 | | | | | | | | | | | | | 12.49 | | | |
| DOSI4 | Walnut Creek 5 W Des Moines 63rd St | | | | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | | | |
| DVSI4 | Thompson River 0 ENE Davis City | 2.05 | | | | | | 4.91 | | 0 | | | | 0.43 | | | | | | | | | | | | | | | |
| DWCI4 | WATERLOO CREEK 1 S Dorchester | 6.85 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| DYSI4 | Wolf Creek 6 N Dysart | 4.34 | | | | | | | | | | | | 0.712 | | | | | | | | | | | | | | | |
| EBRI4 | Salt Creek 3 S Elberon | 7.87 | | | | | | | | | | | | 0.309 | | | | | | | | | | | | | | | |
| ECLI4 | Lawton - Elliot Creek | 72.41 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| EDYI4 | Des Moines River 0 S Eddyville | 58.66 | | | | | | | 0 | 0 | | | | | | | | | | | | | | | | | | | |
| EFWI4 | Jefferson | 8.57 | | | | | | 24.81 | | 0 | | | | 3.16 | | | | | | | | | | | | | | | |
| EMTI4 | West Fork Des Moines River 1 NW Emmetsburg | 2.77 | | | | | | 2.46 | | 0 | | | | 0.815 | | | | | | | | | | | | 12.81 | | | |
| EOKI4 | Mississippi River AT Keokuk LD19 | | 18.26 | 11.4 | | | | 0 | | 0 | | | | | | | 43.2 | | 49.8 | | 250 | | 8.42 | | 3.56 | 13.78 | | | |
| ETRI4 | Stantion - East Tarkio Creek | 1.83 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| FAII4 | Mississippi River AT Fairport | 12.46 | | | | | | 2.8 | | 0 | | | | | | | | | | | | | | | | | | | |
| FLNI4 | North Fork Maquoketa River 3 WNW Fulton | 4.03 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| FLZI4 | Lizard Creek 5 WNW Fort Dodge | 6.45 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| FMBI4 | Ankeny 2 SE | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| FMDI4 | Mississippi River AT Fort Madison | 527.22 | | | | | | 89.95 | | 0 | | | | | | | | | | | | | | | | | | | |
| FODI4 | Des Moines River 2 WNW Fort Dodge | 6.29 | | | | | | 0 | | 0 | | | | 4.9 | | | | | | | | | | | | | | | |
| GJTI4 | Buttrick Creek 3 WSW Grand Junction | 8.96 | | | | | | 8.63 | | 0 | | | | | | | | | | | | | | | | 10.93 | | | |
| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| GLDI4 | Boone River 2 WSW Goldfield | 13.64 | | | | | | 37.1 | | 0 | | | | 1.3 | | | | | | | | | | | | | | | |
| GRBI4 | Turkey River AT Garber | 11.8 | | | | | | 0 | | 0 | | | | | | | | | 47 | | | | | | | | 4.14 | | |
| GRMI4 | Beaver Creek 3 E Grimes | 7.39 | | | | | | 0 | | 0 | | | | 1.12 | | | | | | | | | | | | | | | |
| GTTI4 | Mississippi River AT Guttenberg Dam 10 | | 611.14 | 10.73 | | | | | | | | | | | | | | | | | | | | | | 14.06 | | | |
| HAVI4 | Richland Creek 1 NNE Haven | 11.77 | | | | | | 63.55 | | 0 | | | | 0.0878 | | | | | | | | | | | | 13.33 | | | |
| HBTI4 | West Fork Des Moines River 0 WSW Humboldt | 5.69 | | | | | | 3.43 | | 0 | | | | 1.67 | | | | | | | | | | | | | | | |
| HMBI4 | Nishnabotna River 1 E Hamburg | 11 | | | | | | 38.26 | | 0 | | | | | | | | | | | | | | | | | | | |
| HNKI4 | West Nishnabotna River AT Hancock | 3.48 | | | | | | 0.35 | | 0 | | | | | | | | | | | | | | | | | | | |
| HRTI4 | Walnut Creek 4 NNW Hartwick | 2.69 | | | | | | | | | | | | 0.11 | | | | | | | | | | | | | | | |
| ICLI4 | Nodaway River 1 E Clarinda | 11.34 | | | | | | 7.12 | | 0 | | | | | | | 47.55 | | | | | | | | | | | | |
| IDNI4 | Middle River 5 NNW Indianola | 8.82 | | | | | | 1.8 | | 0 | | | | | | | | | | | | | | | | | | | |
| IDPI4 | Wapsipinicon River AT Independence | 9.56 | | | | | | 74.11 | | 0 | | | | | | | | | | | | | | | | | | | |
| IOCI4 | Old Mans Creek 5 SW Iowa City SW | 3.04 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| IOWI4 | Iowa City - Iowa River | 15.58 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | | | | |
| IRCI4 | Rapid Creek 4 NE Iowa City NE | 4.43 | | | | | | 76.68 | | 0 | | | | | | | | | | | | | | | | 13.49 | | | |
| JDAI4 | West Des Moines | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| JEWI4 | Mud Lake Drainage Ditch 71 1 N Jewell | 82.32 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| JMEI4 | Floyd River 1 NE James | 9.35 | | | | | | 56.09 | | 0 | | | | | | | | | | | | | | | | | | | |
| KALI4 | English River 1 SSW Kalona | 5.56 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| KECI4 | English Creek 4 ESE Knoxville | 8.38 | | | | | | 2.81 | | 0 | | | | | | | | | | | | | | | | | | | |
| KEQI4 | Des Moines River AT Keosauqua | 17.02 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| KMRI4 | Kamrar | | | | | | | | | | 0 | | | | | | | | | | | | | | | | | | |
| LADI4 | Big Bear Creek AT Ladora | 12.49 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | 12.74 | | | |
| LCYI4 | Lacey - Middle Creek | 75.66 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| LECI4 | Mississippi River AT Le Claire LD14 | | 14.9 | 7.86 | | | | 3.05 | | 0 | | | | | | | 44.06 | | 47.4 | | 141 | | 11.36 | | 8.38 | 13.16 | | | |
| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| LFSI4 | Sanborn 4W - Little Floyd River | 83.1 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| LGNI4 | Boyer River AT Logan | 5.26 | | | | | | 26.71 | | 0 | | | | | | | | | | | | | | | | | | | |
| LKCI4 | North Raccoon River 2 WSW Lanesboro | 11.87 | | | | | | 70.16 | | 0 | | | | | | | | | | | | | | | | | | | |
| LNNI4 | Little Sioux River AT Linn Grove | 17.04 | | | | | | 79.98 | | 0 | | | | | | | | | | | | | | | | | | | |
| LNSI4 | Mississippi River AT Lansing | 8.93 | 621.19 | | | | | | | | | | | | | | | | | | | | | | | | | | |
| LNTI4 | Iowa River 5 SW Lone Tree | -1310.72 | | | | | | 0.14 | | 0 | | | | | | | | | | | | | | | | | | | |
| LSSI4 | Spencer 4 NW | | | | | | | 9.89 | | 0 | | | | | | | | | | | | | | | | | | | |
| MAAI4 | Massena - West Nodaway River | 67 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| MAPI4 | Maple River AT Mapleton | 6.11 | | | | | | 61.77 | | 0 | | | | | | | | | | | | | | | | | | | |
| MAQI4 | Maquoketa River 2 NE Maquoketa | 13.9 | | | | | | | | | | | | | | | | | | | | | | | | 12.78 | | | |
| MBRI4 | Marquette | 4.19 | | | | | | 56.05 | | 0 | | | | | | | | | | | | | | | | | | | |
| MCHI4 | Maquoketa River AT Manchester Hwy 20 | 5.93 | | | | | | 66.4 | | 0 | | | | | | | | | | | | | | | | 13.13 | | | |
| MCPI4 | South Skunk River 4 NNE Ames McFarland Park | 5.04 | | | | | | | | | 0 | | | | | | | | | | | | | | | | | | |
| MCWI4 | Winnebago River 1 NNE Mason City | 7.04 | | | | | | 10 | | 0 | | | | 1 | | | | | | | | | | | | | | | |
| MGOI4 | Indian Creek 3 NNW Mingo | 6.21 | | | | | | 24.15 | | 0 | | | | 0.797 | | | | | | | | | | | | 12.81 | | | |
| MIWI4 | Iowa River 1 N Marshalltown | 15.97 | | | | | | 0 | | 0 | | | | 5.46 | | | | | | | | | | | | | | | |
| MPZI4 | MOUNT PLEASANT 1 SSW [CCOOP] | | | | | | | 12.77 | | | | | | | | | 72.7 | | | | | | | | | 13 | | | |
| MROI4 | Iowa River AT Marengo | 14.52 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | | | | |
| MTWI4 | Timber Creek 4 SE Marshalltown | 4.65 | | | | | | 17.06 | | 0 | | | | 0.216 | | | | | | | | | | | | | | | |
| MUSI4 | Mississippi River AT Muscatine | 13.2 | | | | | | 590 | | 0 | | | | | | | | | | | | | | | | | | | |
| NEPI4 | English River 4 S Parnell | 14.67 | | | | | | 1.59 | | 0 | | | | | | | | | | | | | | | | 12.95 | | | |
| NHRI4 | Beaver Creek 0 NNE New Hartford | 8.14 | | | | | | 82.53 | | 0 | | | | 1.64 | | | | | | | | | | | | | | | |
| NRWI4 | North River 2 SE Norwalk | 9.04 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| OKMI4 | Oakland Mills 3W - Cedar Creek | 4.62 | | | | | | 111.15 | | 0 | | | | | | | | | | | | | | | | 13.32 | | | |
| OKVI4 | Iowa River AT Oakville | 8.42 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| OOAI4 | South Skunk River 4 N Oskaloosa | 17.87 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | 12.78 | | | |
| ORNI4 | Oran - Little Wapsi | 84.18 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| OTMI4 | Des Moines River 1 S Ottumwa | 8.91 | | | | | | | | | | | | 25.6 | | | | | 49 | | | | | | | | | | |
| PANI4 | Middle Raccoon River 1 SW Panora | 5.34 | | | | | | 44.67 | | 0 | | | | 0.562 | | | | | -183.6 | | | | | | | 12.49 | | | |
| PCHI4 | Perry Creek 4 W Hinton | 15.37 | | | | | | 38.69 | | 0 | | | | | | | | | | | | | | | | 12.18 | | | |
| PELI4 | Des Moines River 4 SW Red Rock Reservoir | | 742.06 | | | | | | | | | | | | | | | | | | | | | | | 13.67 | | | |
| PLKI4 | Big Creek Lake 2 NNW Polk City | 20.31 | | | | | | 4.9 | | 0 | | | | | | | | | | | | | | | | 11.56 | | | |
| PLOI4 | Cedar River AT Palo Blairs Ferry Rd | 11.18 | | | | | | 0 | | 0 | | | | | | | | | 45.5 | | | | | | | | | | |
| PMDI4 | Bluff Creek 0 NW Pilot Mound | 81.35 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| PNLI4 | Lake Panorama 1 WNW Panora | | 45.54 | | | | | | | | | | | | | | | | | | | | | | | 13.12 | | | |
| PROI4 | North Raccoon River 1 W Perry | 11.02 | | | | | | 6.39 | | 0 | | | | | | | | | | | | | | | | 11.87 | | | |
| PSGI4 | Soldier River AT Pisgah | 3.4 | | | | | | 0 | | 0 | | | | | | | 104.81 | | | | | | | | | 12.81 | | | |
| RABI4 | Chariton River 1 N Rathbun | 2.2 | | | | | | | | | | | | 0.0104 | | | | | | | | | | | | | | | |
| RAPI4 | Rock River AT Rock Rapids | 7.8 | | | | | | 26.17 | | 0 | | | | | | | | | | | | | | | | | | | |
| RDOI4 | East Nishnabotna River AT Red Oak | 7.52 | | | | | | 27.1 | | 0 | | | | | | | | | | | | | | | | | | | |
| RDPI4 | West Nishnabotna River 1 W Randolph | 9.1 | | | | | | 26.43 | | 0 | | | | | | | 47.23 | | 46.6 | | | | | | | | | | |
| RKDI4 | Rickardsville - Maquoketa | 9.55 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| RKVI4 | Rock River AT Rock Valley | 5.29 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| RLFI4 | Pilot Creek 3 E Rolfe | 4.13 | | | | | | 28.54 | | 0 | | | | | | | | | | | | | | | | | | | |
| ROWI4 | Iowa River 4 WNW Rowan | 8.72 | | | | | | 4.58 | | 0 | | | | 1.16 | | | | | | | | | | | | | | | |
| RRDI4 | Des Moines River 4 SW Pella | | | 93.79 | | | | | | | | | | 24.7 | | | | | 48 | | | | | | | | | | |
| RRMI4 | Red Rock Dam | | | | | | | 5.51 | | 0 | | | | | | | 40.32 | | | | 114 | 15.88 | | | 10.05 | 13.96 | | | |
| SAYI4 | Des Moines River 4 WNW Saylorville Reservoir | | 838.18 | | | | | 30.28 | | 0 | | | | | | | | | | | 167 | | | | 8.02 | 14.53 | | | |
| SCRI4 | North Raccoon River 5 S Sac City | 9.76 | | | | | | 2.05 | | 0 | | | | 0.792 | | | | | | | | | | | | 11.87 | | | |
| SDTI4 | Des Moines River 2 W Saylorville | | | 11.7 | | | | | | | | | | 13.2 | | | | | | | | | | | | 13.12 | | | |
| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| SHAI4 | SHAGBARK HILLS SCAN | | | | 26.5 | 0.4 | 38.2 | | | | | | | | 15.17 | 42.6 | 41.2 | 44 | | 160 | | | | 5.9 | 11.5 | | | | 77 |
| SIGI4 | North Skunk River 2 S Sigourney | 7.94 | | | | | | 198 | | 0 | | | | | | | | | | | | | | | | | | | |
| SIOI4 | Perry Creek AT Sioux City | 6.73 | | | | | | 26.64 | | 0 | | | | | | | | | | | | | | | | | | | |
| SLKI4 | Spirit Lake 2 NW Orleans | | 14.11 | | | | | 22.04 | | 0 | | | | | | | | | | | | | | | | | | | |
| SPLI4 | Turkey River AT Spillville | 4.35 | | | | | | 13.11 | | 0 | | | | | | | | | | | | | | | | | | | |
| SRLI4 | Storm Lake at Storm Lake | | 14.19 | | | | | | | | | | | | | | | | 6.5 | | | | | | | | | | |
| STBI4 | Iowa River 0 WSW Steamboat Rock | 7.63 | | | | | | 0 | | 0 | | | | 2.39 | | | | | | | | | | | | | | | |
| STCI4 | Story City - Keigley Branch | 84.58 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| STHI4 | Stanhope | | | | | | | | | | 0 | | | | | | | | | | | | | | | | | | |
| STRI4 | Des Moines River 4 WSW Stratford | 11.13 | | | | | | 14.17 | | 0 | | | | 8.9 | | | | | | | | | | | | | | | |
| SWNI4 | Des Moines River 2 NE Swan | 52.07 | | | | | | 12.71 | | 0 | | | | | | | | | | | | | | | | | | | |
| TAMI4 | Iowa River 1 S Tama US 63 | 17.15 | | | | | | 1.9 | | 0 | | | | | | | | | | | | | | | | 12.86 | | | |
| TMAI4 | Iowa River 3 W Tama Hwy E49 | 12.11 | | | | | | 0 | | 0 | | | | 8.31 | | | | | | | | | | | | | | | |
| TPTI4 | Brushy Fork Creek 4 ENE Templeton | 67.57 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| TRCI4 | Des Moines River 1 ENE Tracy | 9.89 | | | | | | 11.99 | | 0 | | | | | | | | | | | | | | | | | | | |
| TRNI4 | Monona-Harrison Ditch 4 SSW Turin | 5.67 | | | | | | 50.01 | | 0 | | | | | | | | | | | | | | | | 12.49 | | | |
| TURI4 | Little Sioux River 4 SSE Turin | 10.44 | | | | | | 47.19 | | 0 | | | | | | | | | | | | | | | | | | | |
| UBMI4 | North Walnut Creek at Urbandale Meredith | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| UBWI4 | Walnut Creek 5 W Urbandale 142nd St | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| VINI4 | Cedar River AT Vinton | 4.7 | | | | | | 2.9 | | 0 | | | | | | | | | 46 | | | | | | | | | | |
| VNMI4 | Raccoon River 0 ENE Van Meter | 8.87 | | | | | | 1.38 | | 0 | | | | 7.66 | | | | | -132.9 | | | | | | | 13.43 | | | |
| WAPI4 | Iowa River AT Wapello | 18.45 | | | | | | 0 | | 0 | | | | | | | | | | | | | | | | | | | |
| WBCI4 | Boone River 3 SSE Webster City | 5.79 | | | | | | 12.13 | | 0 | | | | 2.59 | | | | | | | | | | | | | | | |
| WBWI4 | West Branch - Wapsinonoc Creek | 3.02 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| WCBI4 | Waukee 156th St | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | MDI | MNI | MVI | PCI | PPC | PPH | PPJ | PPQ | PPT | QRI | RWH | TAH | TAI | TVI | TWI | UDH | UDI | UPJ | UPV | USH | USI | VBI | WTI | WVI | XRI |
| WCCI4 | Grimes 4 WSW | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| WCDI4 | Waukee 2 NNW | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| WCSI4 | Willow Creek 6 SE Soldier | 66.38 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| WDMI4 | Raccoon River 5 SW West Des Moines | | | | | | | | | 0 | | 0 | 0 | | | | | | | | | | | | | | | | |
| WLTI4 | Welton - Silver Creek | 81.52 | | | | | | | | | | | | | | | | | | | | | | | | | | | |
| WVLI4 | Cedar River 1 NNE Waverly | 5.64 | | | | | | 4.34 | | 0 | | | | 3.71 | | | | | 45.6 | | | | | | | | | 1.75 | |
| WWDI4 | Beaver Creek 4 SSW Woodward | 14.24 | | | | | | 7.63 | | 0 | | | | | | | | | | | | | | | | 11.56 | | | |