| NWS ID | Station | HGI | HPI | HTI | PCI | PPH | PPJ | QRI | QTI | TAI | TWI | UDI | UPJ | UPV | USI | VBI |
| AESI4 | South Skunk River 2 SSE Ames US 30 | 13.79 | | | 34.46 | 0 | | 1.56 | | | | | | | | |
| AGNI4 | East Fork Des Moines River 1 N Algona | 10.98 | | | 32.52 | 0 | | | | | | | | | | |
| AKRI4 | Big Sioux River 1 NW Akron | 6.41 | | | 94.18 | 0 | | 1.1 | | | | | | | | |
| ALOI4 | Cedar River 0 ENE Waterloo | 8.8 | | | 109.28 | 0 | | 11.6 | | | | | | | | |
| ALTI4 | Floyd River AT Alton | 6.23 | | | 76.39 | 0 | | | | | | | | | | 13.12 |
| AMEI4 | South Skunk River 2 N Ames W Riverside Rd | 5.71 | | | 24.11 | 0 | | 0.941 | | | | | | | | |
| AMWI4 | Ames 1SSW - Ioway Creek at Lincoln Way | 3.12 | | | | | | 0.531 | | | | | | | | |
| ANSI4 | Wapsipinicon River 1 SE Anamosa Shaw Rd | 13.11 | | | 36.85 | | | | | | | | | | | |
| ATCI4 | East Nishnabotna River 5 SW Atlantic | 5.42 | | | 47.17 | 0 | | 1.21 | | | | | | | | |
| BAYI4 | Middle Raccoon River 6 SE Bayard | 11.52 | | | 3.52 | | | | | | | | | | | 12.49 |
| BCRI4 | Boone County | | | | | | 0 | | | | | | | | | |
| BHLI4 | Black Hawk Lake 1 SE Lake View | | 8.06 | | | | | | | | | | | | | |
| BIGI4 | Polk City 1SE - Big Creek Pounding | 37.27 | | | 6.78 | 0 | | | | | | | | | | 12.81 |
| BLBI4 | Blairsburg | | | | | | 0 | | | | | | | | | |
| BLII4 | South Fork Iowa River 5 NNE Blairsburg | 5.38 | | | | | | | | | | | | | | |
| BLVI4 | Mississippi River AT Bellevue LD12 | | 12.1 | 11.66 | 4.37 | 0 | | | 100.65 | 54.09 | 48.8 | 26 | | 10.87 | 8.25 | 13.69 |
| BPLI4 | Iowa River 3 S Belle Plaine | 15.97 | | | 88.53 | 0 | | | | | | | | | | |
| BRLI4 | Mississippi River AT Burlington | 14.62 | | | 12.35 | 0.01 | | | | | | | | | | |
| CBSI4 | Beaver Slough AT Clinton 3rd St | 16.27 | | | | | | | | | 50.4 | | | | | |
| CCYI4 | Cedar River AT Charles City | 4.38 | | | 0 | 0 | | | | | | | | | | |
| CEBI4 | Cedar River AT Cedar Bluff | 13.91 | | | 0 | 0 | | | | | | | | | | |
| CIDI4 | Cedar Rapids - Cedar River No 2 | 9.82 | | | | | | | | | | | | | | |
| CJTI4 | Iowa River AT Columbus Jct | 18.31 | | | 2.05 | 0 | | | | | | | | | | |
| CLKI4 | Clear Lake 0 SW Clear Lake | | 4.89 | | 19.49 | 0 | | | | | | | | | | |
| CMCI4 | Muddy Creek 2 NNE Coralville N | 3.03 | | | 0 | 0 | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPH | PPJ | QRI | QTI | TAI | TWI | UDI | UPJ | UPV | USI | VBI |
| CNEI4 | Cedar River 3 NE Conesville | 13.6 | | | 0.51 | 0 | | | | | | | | | | |
| CRAI4 | Clear Creek 2 W Coralville SW | 3.46 | | | 3.18 | 0 | | | | | | | | | | |
| CREI4 | Cedar Rapids - Cedar River at Edgewood Rd | 7.6 | | | | | | | | | | | | | | 13.12 |
| CRRI4 | Little Sioux River 1 W Correctionville | 7.6 | | | 28.61 | 0 | | | | | | | | | | |
| CRVI4 | Iowa River AT Coralville Dam | | 683.61 | | 65.31 | 0 | | | | 51.97 | | 314 | 14.45 | | 8.46 | |
| CRWI4 | Crow Creek 3 NE Bettendorf Valley Rd | 3.98 | | | | | | | | | | | | | | |
| CSRI4 | Ames 4NW - Ioway Creek Cameron School Rd | 4.15 | | | | | 0 | | | | | | | | | |
| CTWI4 | Iowa River AT Coralville Res Tail | | | 54.81 | | | | | | | | | | | | |
| DAKI4 | East Fork Des Moines River 0 ENE Dakota City | 11.06 | | | 15.17 | 0 | | | | | | | | | | |
| DCHI4 | Upper Iowa River 4 S Dorchester Hwy 76 | 8.88 | | | 7.75 | 0 | | | | | | | | | | |
| DESI4 | Des Moines River 2 S Des Moines SE 6th St | 20.14 | | | 4.6 | 0 | | | | | | | | | | 12.81 |
| DLDI4 | Mississippi River AT Dubuque LD11 | | 14.86 | 10.75 | 0.38 | 0 | | | 102.38 | 52.94 | 49.8 | 320 | | 14.53 | 10.82 | 13.65 |
| DVSI4 | Thompson River 0 ENE Davis City | 3.71 | | | 4.93 | 0 | | | | | | | | | | |
| DWCI4 | WATERLOO CREEK 1 S Dorchester | 6.84 | | | | | | | | | | | | | | |
| DYSI4 | Wolf Creek 6 N Dysart | 3.91 | | | | | | | | | | | | | | |
| EBRI4 | Salt Creek 3 S Elberon | 8.5 | | | | | | 0.413 | | | | | | | | |
| EFWI4 | Jefferson | 7.53 | | | 24.91 | 0 | | | | | | | | | | |
| EMTI4 | West Fork Des Moines River 1 NW Emmetsburg | 2.65 | | | 2.67 | | | | | | | | | | | 14.06 |
| EOKI4 | Mississippi River AT Keokuk LD19 | | 18.24 | 12.16 | 0 | 0 | | | | 70.27 | 52.3 | 175 | | 8.22 | 6.12 | 13.78 |
| ESKI4 | Story City - Skunk | 4.55 | | | | | 0 | | | | | | | | | |
| ESQI4 | Ames - Ioway Creek | 3.82 | | | | | 0 | | | | | | | | | |
| FLNI4 | North Fork Maquoketa River 3 WNW Fulton | 3.73 | | | | | | | | | | | | | | |
| FLZI4 | Lizard Creek 5 WNW Fort Dodge | 5.99 | | | | | | | | | | | | | | |
| FODI4 | Des Moines River 2 WNW Fort Dodge | 5.92 | | | 0 | 0 | | | | | | | | | | |
| GLDI4 | Boone River 2 WSW Goldfield | 11.21 | | | 37.41 | | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPH | PPJ | QRI | QTI | TAI | TWI | UDI | UPJ | UPV | USI | VBI |
| GRMI4 | Beaver Creek 3 E Grimes | 7.84 | | | 0 | 0 | | | | | | | | | | |
| GTTI4 | Mississippi River AT Guttenberg Dam 10 | | 611.73 | 11.29 | | | | | | | | | | | | 14.06 |
| HAVI4 | Richland Creek 1 NNE Haven | 13.75 | | | 65.03 | 0 | | 0.276 | | | | | | | | 14.48 |
| HBTI4 | West Fork Des Moines River 0 WSW Humboldt | 5.37 | | | 3.62 | 0 | | | | | | | | | | |
| HMBI4 | Nishnabotna River 1 E Hamburg | 10.9 | | | 38.46 | 0 | | | | | | | | | | |
| HNKI4 | West Nishnabotna River AT Hancock | 3.67 | | | 0.35 | 0 | | | | | | | | | | |
| HRTI4 | Walnut Creek 4 NNW Hartwick | 4.95 | | | | | | 0.35 | | | | | | | | |
| IOCI4 | Old Mans Creek 5 SW Iowa City SW | 6.05 | | | | | | | | | | | | | | |
| IOWI4 | Iowa City - Iowa River | 17.35 | | | 0 | 0 | | | | | | | | | | |
| IRCI4 | Rapid Creek 4 NE Iowa City NE | 5.18 | | | 78.01 | 0 | | | | | | | | | | 14.43 |
| JMEI4 | Floyd River 1 NE James | 9.17 | | | 56.09 | 0 | | | | | | | | | | |
| KALI4 | English River 1 SSW Kalona | 8.4 | | | | | | | | | | | | | | |
| KMRI4 | Kamrar | | | | | | 0 | | | | | | | | | |
| LADI4 | Big Bear Creek AT Ladora | 16.35 | | | 0 | 0 | | | | | | | | | | 13.74 |
| LCYI4 | Lacey - Middle Creek | 77.45 | | | | | | | | | | | | | | |
| LECI4 | Mississippi River AT Le Claire LD14 | | 14.99 | 8.17 | 1.12 | 0 | | | | 54.06 | 51.5 | 315 | | 10.59 | 5.81 | 13.58 |
| LGNI4 | Boyer River AT Logan | 5.14 | | | 27.26 | 0 | | | | | | | | | | |
| LNNI4 | Little Sioux River AT Linn Grove | 17.01 | | | 80.12 | 0 | | | | | | | | | | |
| LNSI4 | Mississippi River AT Lansing | 9.25 | 621.51 | | | | | | | | | | | | | |
| LNTI4 | Iowa River 5 SW Lone Tree | -1310.72 | | | 0.19 | 0 | | | | | | | | | | |
| LSSI4 | Spencer 4 NW | | | | 9.89 | | | | | | | | | | | |
| MAAI4 | Massena - West Nodaway River | 68.33 | | | | | | | | | | | | | | |
| MAPI4 | Maple River AT Mapleton | 5.93 | | | 61.79 | 0 | | | | | | | | | | |
| MBRI4 | Marquette | 4.09 | | | 56.23 | 0 | | | | | | | | | | |
| MCHI4 | Maquoketa River AT Manchester Hwy 20 | 5.33 | | | 66.73 | | | | | | | | | | | 13.61 |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPH | PPJ | QRI | QTI | TAI | TWI | UDI | UPJ | UPV | USI | VBI |
| MCWI4 | Winnebago River 1 NNE Mason City | 6.41 | | | 10 | 0 | | | | | | | | | | |
| MIWI4 | Iowa River 1 N Marshalltown | 14.74 | | | 0 | 0 | | 3.99 | | | | | | | | |
| MPZI4 | MOUNT PLEASANT 1 SSW [CCOOP] | | | | | | | | | 72.4 | | | | | | |
| MROI4 | Iowa River AT Marengo | 15.87 | | | 0 | 0 | | | | | | | | | | |
| MTWI4 | Timber Creek 4 SE Marshalltown | 6.17 | | | 17.06 | 0 | | 0.397 | | | | | | | | |
| NEPI4 | English River 4 S Parnell | 17.28 | | | 2.97 | 0 | | | | | | | | | | 14.04 |
| NHRI4 | Beaver Creek 0 NNE New Hartford | 5.9 | | | 82.69 | 0 | | 0.885 | | | | | | | | |
| OKVI4 | Iowa River AT Oakville | 10.15 | | | | | | | | | | | | | | |
| ORNI4 | Oran - Little Wapsi | 83.22 | | | | | | | | | | | | | | |
| PANI4 | Middle Raccoon River 1 SW Panora | 5.6 | | | 45.94 | | | | | | -182.5 | | | | | 12.18 |
| PLOI4 | Cedar River AT Palo Blairs Ferry Rd | 10.56 | | | 0 | | | | | | 50.1 | | | | | |
| PNLI4 | Lake Panorama 1 WNW Panora | | 45.47 | | | | | | | | | | | | | 13.12 |
| PSGI4 | Soldier River AT Pisgah | 3.36 | | | 0 | 0 | | | | 131.43 | | | | | | 13.12 |
| RABI4 | Chariton River 1 N Rathbun | 2.25 | | | | | | 0.0145 | | | | | | | | |
| RAPI4 | Rock River AT Rock Rapids | 7.63 | | | 26.17 | | | | | | | | | | | |
| RDOI4 | East Nishnabotna River AT Red Oak | 9.06 | | | 27.87 | 0 | | | | | | | | | | |
| RDPI4 | West Nishnabotna River 1 W Randolph | 9.71 | | | 26.92 | 0 | | | | 53.49 | 50.3 | | | | | |
| RKVI4 | Rock River AT Rock Valley | 5.19 | | | | | | | | | | | | | | |
| RLFI4 | Pilot Creek 3 E Rolfe | 3.65 | | | 28.77 | | | | | | | | | | | |
| ROWI4 | Iowa River 4 WNW Rowan | 6.72 | | | 4.77 | 0 | | 0.611 | | | | | | | | |
| RRMI4 | Red Rock Dam | | | | 6.69 | 0 | | | | 52.02 | | 356 | 6.98 | | 4.06 | 13.98 |
| SAYI4 | Des Moines River 4 WNW Saylorville Reservoir | | 836.78 | | 31.57 | 0 | | | | | | 42 | | | 9.9 | 14.6 |
| SCRI4 | North Raccoon River 5 S Sac City | 9.09 | | | 2.14 | 0 | | | | | | | | | | 12.81 |
| SDTI4 | Des Moines River 2 W Saylorville | | | 10.25 | | | | | | | | | | | | 14.37 |
| SIOI4 | Perry Creek AT Sioux City | 6.71 | | | 26.64 | 0 | | | | | | | | | | |
| NWS ID | Station | HGI | HPI | HTI | PCI | PPH | PPJ | QRI | QTI | TAI | TWI | UDI | UPJ | UPV | USI | VBI |
| SLKI4 | Spirit Lake 2 NW Orleans | | 14.12 | | 22.05 | | | | | | | | | | | |
| SRLI4 | Storm Lake at Storm Lake | | 14.18 | | | | | | | | 7.8 | | | | | |
| STBI4 | Iowa River 0 WSW Steamboat Rock | 7.3 | | | 0 | 0 | | 2.03 | | | | | | | | |
| STHI4 | Stanhope | | | | | | 0 | | | | | | | | | |
| STRI4 | Des Moines River 4 WSW Stratford | 10.11 | | | 14.85 | 0 | | | | | | | | | | |
| TAMI4 | Iowa River 1 S Tama US 63 | 14.67 | | | 2.81 | 0 | | | | | | | | | | 14.27 |
| TMAI4 | Iowa River 3 W Tama Hwy E49 | 9.73 | | | 0 | 0 | | 4.96 | | | | | | | | |
| TPTI4 | Brushy Fork Creek 4 ENE Templeton | 67.5 | | | | | | | | | | | | | | |
| TRNI4 | Monona-Harrison Ditch 4 SSW Turin | 5.5 | | | 50.05 | 0 | | | | | | | | | | 13.43 |
| TURI4 | Little Sioux River 4 SSE Turin | 9.99 | | | 47.24 | 0 | | | | | | | | | | |
| VINI4 | Cedar River AT Vinton | 4.77 | | | 3.5 | | | | | | 50.8 | | | | | |
| VNMI4 | Raccoon River 0 ENE Van Meter | 9.52 | | | 2.46 | 0 | | | | | -135 | | | | | 13.43 |
| WAPI4 | Iowa River AT Wapello | 20.24 | | | 0 | 0 | | | | | | | | | | |
| WBCI4 | Boone River 3 SSE Webster City | 4.65 | | | 12.13 | 0 | | | | | | | | | | |
| WBWI4 | West Branch - Wapsinonoc Creek | 3.36 | | | | | | | | | | | | | | |
| WCSI4 | Willow Creek 6 SE Soldier | 66.36 | | | | | | | | | | | | | | |
| WLTI4 | Welton - Silver Creek | 82.01 | | | | | | | | | | | | | | |