Browse lakes and reservoirs
Named lake-type waterbodies with a populated record: assessment verdicts, listed impairment causes, or a linked USGS gauge. Data updated 2026-08-17.
Waterbodies
Showing 1,601–1,650 of 1,686 starting with S
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All New Hampshire 2,233 Minnesota 1,939 Wisconsin 1,219 Florida 973 Michigan 776 Vermont 712 Massachusetts 678 New Jersey 588 South Carolina 473 Illinois 439 New York 428 Washington 385 Texas 323 Kansas 304 Maine 302 Alabama 263 Nebraska 250 Pennsylvania 246 California 195 Virginia 193 Idaho 186 South Dakota 176 North Dakota 174 Oklahoma 173 Missouri 170 Iowa 167 Oregon 167 Indiana 162 Rhode Island 126 Colorado 122 Kentucky 108 Georgia 98 Connecticut 97 North Carolina 92 Utah 84 Louisiana 74 Tennessee 73 Arkansas 69 New Mexico 58 Montana 52 Nevada 50 Delaware 46 Arizona 44 West Virginia 44 Maryland 37 Mississippi 14 Alaska 12 Wyoming 8 Ohio 7 Hawaii 2
| Waterbody | State | Status | Causes |
|---|---|---|---|
| Swains Lake | NH | Not Supporting | 7 |
| Swains Pond | MA | Not Supporting | 1 |
| Swamp | MN | Not Supporting | 1 |
| Swamp Lake | MN | Fully Supporting | 0 |
| Swamper | MN | Not Supporting | 1 |
| Swamsauger Lake | WI | Fully Supporting | 0 |
| Swan | MN | Not Supporting | 1 |
| Swan | MN | Not Supporting | 1 |
| SWAN (Indian Lake) | IL | Not Supporting | 2 |
| Swan (Main Basin) | MN | Not Supporting | 1 |
| Swan (West Bay) | MN | Not Supporting | 1 |
| Swan Creek (Wheeler Lake) | AL | Fully Supporting | 0 |
| Swan Creek Lake (2A) | NE | Not Supporting | 1 |
| Swan Creek Lake (5A) | NE | Not Supporting | 5 |
| Swan Lake | ID | Not Supporting | 1 |
| Swan Lake | IA | Not Supporting | 3 |
| Swan Lake | IA | Not Supporting | 3 |
| Swan Lake | MI | Not Supporting | 1 |
| Swan Lake | MT | Not Supporting | 4 |
| Swan Lake | NY | Not Supporting | 1 |
| Swan Lake | SD | Not Supporting | 1 |
| Swan Lake | SD | Not Supporting | 1 |
| Swan Lake | WI | Not Supporting | 1 |
| Swan Lake Boat Launch | MI | Not Supporting | 1 |
| Swan Pond | KY | Not Supporting | 1 |
| Swans Pond | MA | Not Supporting | 2 |
| Swanson Reservoir | NE | Not Supporting | 3 |
| Swanton Lake | NE | Not Supporting | 4 |
| Swanzey Lake | NH | Not Supporting | 2 |
| Swanzey Lake - Camp Squanto Beach | NH | Not Supporting | 1 |
| Swanzey Lake - Richardson Park Town Beach | NH | Not Supporting | 2 |
| Swartout | MN | Not Supporting | 1 |
| Swartswood Lake and tribs | NJ | Not Supporting | 6 |
| Swartswood trib(41-06-06 thru Lk Owassa) | NJ | Not Supporting | 3 |
| Swartz Lake | WA | Not Supporting | 1 |
| Swartz Pond Dam | NH | Not Supporting | 1 |
| Sweat Pond | NH | Not Supporting | 3 |
| Swede | MN | Not Supporting | 1 |
| Swede Lake | MN | Fully Supporting | 0 |
| Swede Lake | WI | Fully Supporting | 0 |
| Swede Run | NJ | Not Supporting | 5 |
| Swede's Bay | MN | Not Supporting | 1 |
| Sweeney | MN | Not Supporting | 1 |
| Sweeney | VT | Fully Supporting | 0 |
| Sweet | VT | Fully Supporting | 0 |
| Sweet Arrow Lake-02050305001592 | PA | Not Supporting | 2 |
| Sweet Briar Lake | ND | Not Supporting | 1 |
| Sweetwater Reservoir | CA | Not Supporting | 2 |
| Sweitzer Lake (a.k.a. Garnet Mesa Reservoir). | CO | Not Supporting | 1 |
| Swenoda | MN | Not Supporting | 1 |
Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026