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| Monitored Lake |
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All monitored lakes are listed below in alphabetical order. Click a lake name to view watershed and landuse characteristics:
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| Arbor Lake | Poweshiek County | Lake Orient | Adair County |
| Arrowhead Lake | Sac County | Lake Pahoja | Lyon County |
| Arrowhead Lake | Pottawattamie County | Lake Smith | Kossuth County |
| Avenue of the Saints Lake | Bremer County | Lake Sugema | Van Buren County |
| Badger Creek Lake | Madison County | Lake Wapello | Davis County |
| Badger Lake | Webster County | Little River Lake | Decatur County |
| Beaver Lake | Dallas County | Little Sioux Park Lake | Woodbury County |
| Beeds Lake | Franklin County | Little Spirit Lake | Dickinson County |
| Big Creek Lake | Polk County | Little Wall Lake | Hamilton County |
| Big Spirit Lake | Dickinson County | Littlefield Lake | Audubon County |
| Lizard Lake | Pocahontas County | ||
| Black Hawk Lake | Sac County | Lost Island Lake | Palo Alto County |
| Blue Lake | Monona County | Lower Gar Lake | Dickinson County |
| Bob White Lake | Wayne County | Lower Pine Lake | Hardin County |
| Briggs Woods Lake | Hamilton County | Manteno Lake | Shelby County |
| Browns Lake | Woodbury County | Mariposa Lake | Jasper County |
| Brushy Creek Lake | Webster County | Meadow Lake | Adair County |
| Carter Lake | Pottawattamie County | Meyers Lake | Black Hawk County |
| Casey Lake (Hickory Hills Lake) | Tama County | Mill Creek Lake | O'Brien County |
| Center Lake | Dickinson County | Mitchell Lake | Black Hawk County |
| Central Park Lake | Jones County | Moorehead Lake | Ida County |
| Clear Lake | Cerro Gordo County | Mormon Trail Lake | Adair County |
| Cold Springs Lake | Cass County | Nelson Park Lake | Crawford County |
| Coralville Lake | Johnson County | Nine Eagles Lake | Decatur County |
| Crawford Creek Impoundment | Ida County | North Twin Lake | Calhoun County |
| Crystal Lake | Hancock County | Oldham Lake | Monona County |
| Dale Maffitt Lake | Polk County | Otter Creek Lake | Tama County |
| Ottumwa Lagoon | Wapello County | ||
| DeSoto Bend Lake | Harrison County | Pierce Creek Lake | Page County |
| Diamond Lake | Poweshiek County | Pleasant Creek Lake | Linn County |
| Dog Creek Lake | O'Brien County | Pollmiller Park Lake | Lee County |
| Don Williams Lake | Boone County | Prairie Rose Lake | Shelby County |
| East Lake, Osceola | Clarke County | Rathbun Lake | Appanoose County |
| East Okoboji Lake | Dickinson County | Red Haw Lake | Lucas County |
| Easter Lake | Polk County | Red Rock Lake | Marion County |
| Eldred Sherwood Lake | Hancock County | Roberts Creek Lake | Marion County |
| Five Island Lake | Palo Alto County | Rock Creek Lake | Jasper County |
| Fogle Lake | Ringgold County | Rodgers Park Lake | Benton County |
| George Wyth Lake | Black Hawk County | Saylorville Lake | Polk County |
| Green Belt Lake | Black Hawk County | Silver Lake | Worth County |
| Green Castle Lake | Marshall County | Silver Lake | Dickinson County |
| Green Valley Lake | Union County | Silver Lake | Palo Alto County |
| Greenfield Lake | Adair County | Silver Lake | Delaware County |
| Hannen Lake | Benton County | Slip Bluff Lake | Decatur County |
| Hawthorn Lake (Barnes City Lake) | Mahaska County | South Prairie Lake | Black Hawk County |
| Hickory Grove Lake | Story County | Spring Lake | Greene County |
| Hooper Area Pond | Warren County | Springbrook Lake | Guthrie County |
| Indian Lake | Van Buren County | Storm Lake | Buena Vista County |
| Summit Lake | Union County | ||
| Ingham Lake | Emmet County | Swan Lake | Carroll County |
| Kent Park Lake | Johnson County | Thayer Lake | Union County |
| Lacey Keosauqua Lake | Van Buren County | Three Mile Lake | Union County |
| Lake Ahquabi | Warren County | Trumbull Lake | Clay County |
| Lake Anita | Cass County | Tuttle Lake | Emmet County |
| Lake Cornelia | Wright County | Twelve Mile Creek Lake | Union County |
| Lake Darling | Washington County | Union Grove Lake | Tama County |
| Lake Geode | Henry County | Upper Gar Lake | Dickinson County |
| Lake Hendricks | Howard County | Upper Pine Lake | Hardin County |
| Lake Icaria | Adams County | Viking Lake | Montgomery County |
| Lake Iowa | Iowa County | Volga Lake | Fayette County |
| Lake Keomah | Mahaska County | West Okoboji Lake | Dickinson County |
| Lake Macbride | Johnson County | West Osceola Lake | Clarke County |
| Lake Manawa | Pottawattamie County | White Oak Lake | Mahaska County |
| Lake Meyer | Winneshiek County | Williamson Pond | Lucas County |
| Lake Miami | Monroe County | Willow Lake | Harrison County |
| Lake Minnewashta | Dickinson County | Wilson Park Lake | Taylor County |
| Lake of the Hills | Scott County | Windmill Lake | Taylor County |
| Lake of Three Fires | Taylor County | Yellow Smoke Park Lake | Crawford County |