| Beaver Creek at New Hartford, IA | No flooding | 3.57 ft | 358 cfs |
| Beaver Creek near Grimes, IA | No flooding | 5.30 ft | 442 cfs |
| Big Bear Creek at Ladora, IA | No flooding | 11.26 ft | 83 cfs |
| BIG SIOUX RIVER AT AKRON, IA | No flooding | 6.24 ft | 1,170 cfs |
| BIG SIOUX RIVER AT SIOUX CITY, IA | No flooding | 10.65 ft | — |
| Black Hawk Creek at Hudson, IA | No flooding | 8.14 ft | 454 cfs |
| Bloody Run Creek near Marquette, IA | No flooding | 4.23 ft | 33 cfs |
| Boone River near Webster City, IA | No flooding | 2.22 ft | 178 cfs |
| Boyer River at Logan, IA | No flooding | 3.86 ft | 249 cfs |
| Burr Oak Creek near Perkins, IA | No flooding | 10.36 ft | — |
| Cedar Creek near Bussey, IA | No flooding | 7.01 ft | 630 cfs |
| Cedar River at Blairs Ferry Road at Palo, IA | No flooding | 6.33 ft | 7,540 cfs |
| Cedar River at Cedar Bluff, IA | No flooding | 8.04 ft | 7,960 cfs |
| Cedar River at Cedar Falls, IA | No flooding | 82.20 ft | 5,880 cfs |
| Cedar River at Cedar Rapids, IA | No flooding | 5.67 ft | 7,710 cfs |
| Cedar River at Charles City, IA | No flooding | 4.41 ft | 1,710 cfs |
| Cedar River at Janesville, IA | No flooding | 2.72 ft | 1,910 cfs |
| Cedar River at Vinton, IA | No flooding | 6.25 ft | 7,210 cfs |
| Cedar River at Waterloo, IA | No flooding | 7.38 ft | 6,460 cfs |
| Cedar River at Waverly, IA | No flooding | 5.09 ft | 1,520 cfs |
| Cedar River near Conesville, IA | No flooding | 9.23 ft | 9,220 cfs |
| Chariton River near Chariton, IA | No flooding | 4.85 ft | 51 cfs |
| Chariton River near Moulton, IA | No flooding | 19.16 ft | 130 cfs |
| Clear Creek near Coralville, IA | No flooding | 1.66 ft | 79 cfs |
| Clear Creek near Oxford, IA | No flooding | 2.31 ft | 32 cfs |
| Deer Creek near Carpenter, IA | No flooding | 78.83 ft | — |
| Des Moines River at 2nd Avenue at Des Moines, IA | No flooding | 14.95 ft | 4,630 cfs |
| Des Moines River at Eddyville, IA | No flooding | 49.68 ft | 3,560 cfs |
| Des Moines River at Emmetsburg, IA | No flooding | 1.13 ft | 260 cfs |
| Des Moines River at Estherville, IA | No flooding | 2.55 ft | — |
| Des Moines River at Fort Dodge, IA | No flooding | 4.31 ft | 1,030 cfs |
| Des Moines River at Humboldt, IA | No flooding | 3.88 ft | 489 cfs |
| Des Moines River at Keosauqua, IA | No flooding | 11.56 ft | 3,970 cfs |
| Des Moines River at Ottumwa, IA | No flooding | 2.42 ft | 2,510 cfs |
| Des Moines River below Raccoon Riv at Des Moines, IA | No flooding | 13.66 ft | 6,550 cfs |
| Des Moines River near Stratford, IA | No flooding | 5.96 ft | 1,210 cfs |
| Des Moines River near Tracy, IA | No flooding | 4.37 ft | 5,250 cfs |
| East Fork 102 River at Bedford, IA | No flooding | 11.07 ft | 45 cfs |
| East Fork Des Moines River at Dakota City, IA | No flooding | 8.39 ft | 359 cfs |
| East Fork Des Moines River near Algona, IA | No flooding | 7.64 ft | 244 cfs |
| East Nishnabotna River at Red Oak, IA | No flooding | 5.93 ft | 220 cfs |
| East Nishnabotna River near Atlantic, IA | No flooding | 2.60 ft | 93 cfs |
| East Nodaway River at Highway 2 near Clarinda, IA | No flooding | 9.39 ft | 37 cfs |
| East Tarkio Creek near Stanton, IA | No flooding | 0.14 ft | — |
| Elliott Creek at Lawton, IA | No flooding | 72.44 ft | — |
| English Creek near Knoxville, IA | No flooding | 9.51 ft | 64 cfs |
| English River at Kalona, IA | No flooding | 4.60 ft | 180 cfs |
| Floyd River at Alton, IA | No flooding | 5.52 ft | 27 cfs |
| Floyd River at James, IA | No flooding | 8.77 ft | 271 cfs |
| Fourmile Creek at Des Moines, IA | No flooding | 8.19 ft | 1,160 cfs |
| Fourmile Creek near Ankeny, IA DS1 | No flooding | 7.87 ft | 946 cfs |
| Indian Creek at Marion, IA | No flooding | 2.96 ft | 24 cfs |
| Indian Creek near Mingo, IA | No flooding | 5.68 ft | 616 cfs |
| Iowa River at Columbus Junction, IA | No flooding | 13.21 ft | 12,700 cfs |
| Iowa River at County Highway E49 near Tama, IA | No flooding | 4.26 ft | 1,280 cfs |
| Iowa River at Iowa City, IA | No flooding | 12.99 ft | 3,460 cfs |
| Iowa River at Marengo, IA | No flooding | 8.91 ft | 2,140 cfs |
| Iowa River at Marshalltown, IA | No flooding | 11.48 ft | 1,110 cfs |
| Iowa River at Oakville, IA | No flooding | 5.69 ft | 13,300 cfs |
| Iowa River at Steamboat Rock, IA | No flooding | 5.87 ft | 296 cfs |
| Iowa River at Wapello, IA | No flooding | 15.55 ft | 12,600 cfs |
| Iowa River near Belle Plaine, IA | No flooding | 9.11 ft | 2,110 cfs |
| Iowa River near Lone Tree, IA | No flooding | 7.76 ft | 3,480 cfs |
| Iowa River near Rowan, IA | No flooding | 4.51 ft | 173 cfs |
| Ioway Creek at Ames, IA | No flooding | 2.46 ft | 269 cfs |
| Little Cedar River near Ionia, IA | No flooding | 4.65 ft | 332 cfs |
| Little Floyd River near Sanborn, IA | No flooding | 82.91 ft | — |
| Little Sioux River at Correctionville, IA | No flooding | 5.35 ft | 566 cfs |
| Little Sioux River at Linn Grove, IA | No flooding | 5.80 ft | 292 cfs |
| Little Sioux River near Turin, IA | No flooding | 7.75 ft | 837 cfs |
| Maple River at Mapleton, IA | No flooding | 4.64 ft | 142 cfs |
| Maquoketa River at Manchester, IA | No flooding | 5.63 ft | 539 cfs |
| Maquoketa River near Maquoketa, IA | No flooding | 13.28 ft | 2,400 cfs |
| Middle Raccoon River at Panora, IA | No flooding | 4.28 ft | 85 cfs |
| Middle Raccoon River near Bayard, IA | No flooding | 9.12 ft | 66 cfs |
| Middle River near Indianola, IA | No flooding | 8.97 ft | 447 cfs |
| Mississippi River at Clayton, IA | No flooding | 11.76 ft | — |
| Mississippi River at Clinton, IA | No flooding | 9.63 ft | 47,600 cfs |
| Mississippi River at McGregor, IA | No flooding | 7.31 ft | — |
| Monona-Harrison Ditch near Turin, IA | No flooding | 4.93 ft | 106 cfs |
| Nishnabotna River above Hamburg, IA | No flooding | 9.11 ft | 1,020 cfs |
| Nodaway River at Clarinda, IA | No flooding | 10.79 ft | 153 cfs |
| North Fork Maquoketa River near Fulton, IA | No flooding | 3.54 ft | 444 cfs |
| North Raccoon River near Jefferson, IA | No flooding | 5.25 ft | 286 cfs |
| North Raccoon River near Lanesboro, IA | No flooding | 7.77 ft | — |
| North Raccoon River near Sac City, IA | No flooding | 6.96 ft | 120 cfs |
| North River near Norwalk, IA | No flooding | 11.25 ft | 825 cfs |
| North Skunk River near Sigourney, IA | No flooding | 5.17 ft | 290 cfs |
| Ocheyedan River near Spencer, IA | No flooding | 2.24 ft | 57 cfs |
| Old Mans Creek near Iowa City, IA | No flooding | 2.77 ft | 131 cfs |
| Perry Creek at 38th Street at Sioux City, IA | No flooding | 6.69 ft | — |
| Perry Creek near Hinton, IA | No flooding | 15.42 ft | — |
| Perry Creek near Millnerville, IA | No flooding | 1.10 ft | — |
| Raccoon River at 63rd Street at Des Moines, IA | No flooding | 21.92 ft | 1,580 cfs |
| Raccoon River at Fleur Drive at Des Moines, IA | No flooding | 4.03 ft | 2,210 cfs |
| Raccoon River at Van Meter, IA | No flooding | 3.76 ft | 1,110 cfs |
| Rapid Creek near Iowa City, IA | No flooding | 4.14 ft | 16 cfs |
| Richland Creek near Haven, IA | No flooding | 10.61 ft | 16 cfs |
| Rock River below Tom Creek at Rock Rapids, IA | No flooding | 6.76 ft | 38 cfs |
| Rock River near Rock Valley, IA | No flooding | 4.83 ft | 231 cfs |
| Salt Creek near Elberon, IA | No flooding | 7.88 ft | 314 cfs |
| Shell Rock River at Shell Rock, IA | No flooding | 9.52 ft | 2,650 cfs |
| Skunk River at Augusta, IA | No flooding | 4.66 ft | 3,330 cfs |
| Snake Creek near Yorktown, IA | No flooding | 79.84 ft | — |
| Soldier River at Pisgah, IA | No flooding | 2.75 ft | 51 cfs |
| South Branch Ralston Creek at Iowa City, IA | No flooding | 1.72 ft | — |
| South Fork Chariton River near Promise City, IA | No flooding | 3.38 ft | 33 cfs |
| South Fork Iowa River NE of New Providence, IA | No flooding | 2.85 ft | 78 cfs |
| South Raccoon River at Redfield, IA | No flooding | 2.72 ft | 211 cfs |
| South River near Ackworth, IA | No flooding | 7.24 ft | 452 cfs |
| South Skunk River at Colfax, IA | No flooding | 13.52 ft | 3,340 cfs |
| South Skunk River below Ioway Creek near Ames, IA | No flooding | 12.20 ft | 761 cfs |
| South Skunk River near Ames, IA | No flooding | 4.27 ft | 343 cfs |
| South Skunk River near Oskaloosa, IA | No flooding | 12.66 ft | 2,630 cfs |
| Tarkio River near Elliott, IA | No flooding | 2.64 ft | — |
| Thompson River at Davis City, IA | No flooding | 1.33 ft | 74 cfs |
| Timber Creek near Marshalltown, IA | No flooding | 3.27 ft | 105 cfs |
| Turkey River above French Hollow Cr at Elkader, IA | No flooding | 7.00 ft | 1,490 cfs |
| Turkey River at Garber, IA | No flooding | 9.81 ft | 3,140 cfs |
| Turkey River at Spillville, IA | No flooding | 3.43 ft | 328 cfs |
| Turkey River near Eldorado, IA | No flooding | 6.96 ft | 1,050 cfs |
| Upper Iowa River at Bluffton, IA | No flooding | 4.65 ft | 845 cfs |
| Upper Iowa River at Decorah, IA | No flooding | 2.68 ft | 866 cfs |
| Upper Iowa River near Dorchester, IA | No flooding | 8.09 ft | 1,050 cfs |
| Volga River at Littleport, IA | No flooding | 8.19 ft | 1,520 cfs |
| Walnut Creek at Des Moines, IA | No flooding | 5.24 ft | 447 cfs |
| Walnut Creek near Hartwick, IA | No flooding | 1.13 ft | 19 cfs |
| Wapsipinicon River at Independence, IA | No flooding | 5.89 ft | 1,150 cfs |
| Wapsipinicon River near Anamosa, IA | No flooding | 7.33 ft | 2,060 cfs |
| Wapsipinicon River near De Witt, IA | No flooding | 8.27 ft | 2,500 cfs |
| Wapsipinicon River near Tripoli, IA | No flooding | 8.83 ft | 305 cfs |
| Waterloo Creek near Dorchester, IA | No flooding | 7.03 ft | — |
| West Fork Cedar River at Finchford, IA | No flooding | 9.69 ft | 1,460 cfs |
| West Nishnabotna River at Hancock, IA | No flooding | 2.25 ft | 184 cfs |
| West Nishnabotna River at Randolph, IA | No flooding | 8.46 ft | 556 cfs |
| White Breast Creek near Dallas, IA | No flooding | 6.87 ft | 137 cfs |
| Willow Creek near Cornell, IA | No flooding | 81.81 ft | — |
| Willow Creek near Soldier, IA | No flooding | 65.69 ft | — |
| Winnebago River at Mason City, IA | No flooding | 5.20 ft | 187 cfs |
| Wolf Creek near Dysart, IA | No flooding | 4.03 ft | 594 cfs |
| Big Cedar Creek near Varina, IA | No current data | — | — |
| Black Hawk Creek Tributary near Floral Ln at Davenport, IA | No current data | — | — |
| Buffalo Creek South of Prairieburg, IA | No current data | — | — |
| Cedar River at Osage, IA | No current data | — | — |
| Duck Creek at 110th Avenue at Davenport, IA | No current data | — | — |
| Duck Creek at DC Golf Course at Davenport, IA | No current data | — | — |
| Duck Creek Tributary near Colony Drive at Davenport, IA | No current data | — | — |
| East Branch Iowa River near Klemme, IA | No current data | — | — |
| East Fork Hardin Creek near Churdan, IA | No current data | — | — |
| East Nishnabotna River at Riverton, IA | No current data | — | — |
| Elk River near Almont, IA | No current data | — | — |
| Flood Creek near Powersville, IA | No current data | — | — |
| Fox River at Bloomfield, IA | No current data | — | — |
| Hazelbrush Creek near Maple River, IA | No current data | — | — |
| Hoover Cr at Hoover Nat Hist Site, West Branch, IA | No current data | — | — |
| Keg Creek at Epperson Avenue near Glenwood, IA | No current data | — | — |
| Kimberly Rd Strm Swr near Gaines St at Davenport, IA | No current data | — | — |
| Little Pony Creek at Council Bluffs, IA | No current data | — | — |
| Little Sioux River at 300th St near Spencer, IA | No current data | — | — |
| Lyons Creek near Webster City, IA (L3) | No current data | — | — |
| Maquoketa River near Green Island, IA | No current data | — | — |
| McManus Creek at Davenport, IA | No current data | — | — |
| MISSISSIPPI R AT LOCK & DAM 12 AT BELLEVUE, IA | No current data | — | — |
| Missouri River near Council Bluffs, IA | No current data | — | — |
| NF Maquoketa River below Bear Cr at Dyersville, IA | No current data | — | — |
| North Fork Maquoketa River at Fulton, IA | No current data | — | — |
| North Raccoon River near Newell, IA | No current data | — | — |
| Otter Creek at Elgin, IA | No current data | — | — |
| Pheasant Creek at Davenport, IA | No current data | — | — |
| Prairie Creek at Otho, IA (S3) | No current data | — | — |
| Ralston Creek at Iowa City, IA | No current data | — | — |
| Red Rock Creek near Colfax, IA | No current data | — | — |
| Roberts Creek above Saint Olaf, IA (RC-2) | No current data | — | — |
| Shell Rock River near Rockford, IA | No current data | — | — |
| Silver Creek near Luana, IA (L-23S) | No current data | — | — |
| Skunk River at Merrimac, IA | No current data | — | — |
| Sny Magill Creek near Clayton, IA | No current data | — | — |
| Tarkio River at Stanton, IA | No current data | — | — |
| Tile Line at S Branch of Walnut Cr at Kelley, IA | No current data | — | — |
| Unnamed Trb to WB Wapsinonoc Cr at West Branch, IA | No current data | — | — |
| Upper Iowa River at Kendallville, IA | No current data | — | — |
| Upper Iowa River at Lime Springs, IA | No current data | — | — |
| Volga River at Fayette, IA | No current data | — | — |
| Walnut Creek at Kelley, IA | No current data | — | — |
| Walnut Creek near Cambridge, IA | No current data | — | — |
| Walnut Creek near Kelley, IA | No current data | — | — |
| Walnut Creek near Prairie City, IA | No current data | — | — |
| Walnut Creek near Vandalia, IA | No current data | — | — |
| Walnut Creek Tributary near Kelley, IA | No current data | — | — |
| Wapsipinicon River at Oxford Mills, IA | No current data | — | — |
| Wapsipinicon River near Elma, IA | No current data | — | — |
| WB Wapsinonoc Cr above Baker Ave at West Branch, IA | No current data | — | — |
| Weldon River near Leon, IA | No current data | — | — |
| West Branch Floyd River near Struble, IA | No current data | — | — |
| West Fork Ditch at Hornick, IA | No current data | — | — |
| West Nishnabotna River near Riverton, IA | No current data | — | — |
| Bear Creek at Ottumwa, IA | No flood stage defined | 79.22 ft | — |
| Beaver Slough at 3rd Street at Clinton, IA | No flood stage defined | 11.10 ft | — |
| Big Creek North of Mount Pleasant, IA | No flood stage defined | 3.43 ft | 15 cfs |
| Bluff Creek at Pilot Mound, IA | No flood stage defined | 80.80 ft | — |
| Boone River near Goldfield, IA | No flood stage defined | 7.56 ft | 55 cfs |
| Brushy Fork Creek near Templeton, IA | No flood stage defined | 67.13 ft | — |
| Cedar Creek near Oakland Mills, IA | No flood stage defined | 3.13 ft | 92 cfs |
| Cedar River at Edgewood Road at Cedar Rapids, IA | No flood stage defined | 5.21 ft | — |
| Cedar River below Indian Creek at Cedar Rapids, IA | No flood stage defined | 5.31 ft | 7,420 cfs |
| Chariton River near Rathbun, IA | No flood stage defined | 2.21 ft | 14 cfs |
| Cooper Creek at Centerville, IA | No flood stage defined | 7.97 ft | 8 cfs |
| Crow Creek at Bettendorf, IA | No flood stage defined | 3.60 ft | — |
| Deep River at Deep River, IA | No flood stage defined | 66.61 ft | — |
| Des Moines River near Pella, IA | No flood stage defined | 88.12 ft | 8,020 cfs |
| Des Moines River near Saylorville, IA | No flood stage defined | 5.73 ft | 3,870 cfs |
| Des Moines River near Swan, IA | No flood stage defined | 48.35 ft | 12,400 cfs |
| Iowa River below Coralville Dam near Coralville, IA | No flood stage defined | 51.93 ft | 3,640 cfs |
| Keigley Branch near Story City, IA | No flood stage defined | 83.47 ft | — |
| Little Wapsipinicon River near Oran, IA | No flood stage defined | 83.45 ft | — |
| Lizard Creek near Fort Dodge, IA | No flood stage defined | 4.63 ft | — |
| Middle Creek near Lacey, IA | No flood stage defined | 74.82 ft | — |
| Middle Fork Little Maquoketa R near Rickardsville, IA | No flood stage defined | 9.29 ft | — |
| Middle Raccoon River Tributary at Carroll, IA | No flood stage defined | 15.46 ft | — |
| Missouri River at Decatur, NE | No flood stage defined | 19.77 ft | 27,900 cfs |
| Morgan Creek near Covington, IA | No flood stage defined | 5.46 ft | 21 cfs |
| Muddy Creek at Coralville, IA | No flood stage defined | 2.50 ft | 13 cfs |
| Pilot Creek at County Hwy P15 near Rolfe, IA | No flood stage defined | 1.98 ft | — |
| Price Creek at Amana, IA | No flood stage defined | 80.27 ft | — |
| Raccoon River near West Des Moines, IA | No flood stage defined | 28.21 ft | 1,320 cfs |
| Silver Creek at Welton, IA | No flood stage defined | 80.43 ft | — |
| South Fork Iowa River near Blairsburg, IA | No flood stage defined | 4.39 ft | — |
| Spring Creek near Mason City, IA | No flood stage defined | 81.00 ft | — |
| Stein Creek near Clutier, IA | No flood stage defined | 67.58 ft | — |
| WB Wapsinonoc Cr at College St at West Branch, IA | No flood stage defined | 2.81 ft | 4 cfs |
| West Nodaway River at Massena, IA | No flood stage defined | 66.55 ft | — |
| White Fox Creek at Clarion, IA | No flood stage defined | 84.11 ft | — |
| Willow Creek near Mason City, IA | No flood stage defined | 86.33 ft | — |
| Yellow River near Ion, IA | No flood stage defined | 5.89 ft | 144 cfs |