| Saginaw Bay Shoreline, Inner Bay | MI | Great Lakes Shoreline | Not Supporting | 1 | Filed in miles |
| Saginaw Bay Singing Bridge Beach | MI | Great Lakes Shoreline | Not Supporting | 1 | Filed in miles |
| Saginaw Bay South Linwood Township Park Beach | MI | Great Lakes Shoreline | Not Supporting | 1 | Filed in miles |
| Saguaro Lake | AZ | Lake, Freshwater | Fully Supporting | 0 | 1,022 |
| Sahara | IL | Lake, Freshwater | Not Supporting | 1 | 209 |
| Sahoma Lake | OK | Lake, Freshwater | Not Supporting | 2 | 312 |
| Sailor Creek Flowage | WI | Reservoir | Fully Supporting | 0 | 215 |
| Saint Anslems Swimming Pond | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 0.51 |
| Saint George Lake | FL | Lake, Freshwater | Not Supporting | 1 | 65 |
| Saint Johns | MN | Lake, Freshwater | Not Supporting | 1 | 191 |
| Saint Johns Lake | WI | Lake, Freshwater | Fully Supporting | 0 | 107 |
| Saint Lawrence River, Main Stem | NY | Great Lakes Shoreline | Not Supporting | 3 | Filed in miles |
| Saint Lawrence River, Main Stem | NY | Great Lakes Shoreline | Not Supporting | 4 | Filed in miles |
| Saint Lawrence River, Main Stem | NY | Great Lakes Shoreline | Not Supporting | 3 | Filed in miles |
| Saint Lawrence River, Main Stem | NY | Great Lakes Shoreline | Not Supporting | 3 | Filed in miles |
| Saint Mary's Pond | RI | Lake, Freshwater | Not Supporting | 3 | 112 |
| Salem | IL | Lake, Freshwater | Not Supporting | 4 | 74 |
| Salem | VT | Lake, Freshwater | Not Supporting | 1 | 614 |
| Salem | VT | Lake, Freshwater | Not Supporting | 1 | 125 |
| Salem | VT | Lake, Freshwater | Not Supporting | 1 | 25 |
| Salem Lake | UT | Lake, Freshwater | Not Supporting | 2 | 19 |
| Salem Lake (aka Hodgenville City Reservoir) | KY | Lake/Reservoir/Pond | Not Supporting | 1 | 111 |
| Salem Pond | MA | Lake, Freshwater | Not Supporting | 1 | 15 |
| Salem R (39-40-14 dam-CoursesLndg)/Canal | NJ | Lake | Not Supporting | 5 | 26 |
| Salem R (above Woodstown gage) | NJ | Lake | Not Supporting | 9 | 121 |
| Salem R (CountyHomeRd to Woodstown gage) | NJ | Lake | Not Supporting | 7 | 0.02 |
| Salem R (CoursesLanding to CountyHomeRd) | NJ | Lake | Not Supporting | 8 | 20 |
| Salem-Reed | IL | Lake, Freshwater | Not Supporting | 3 | 41 |
| Saline Co. SFL | KS | Lake | Fully Supporting | 0 | 39 |
| Saline Lake | LA | Lake, Freshwater | Not Supporting | 2 | 6,344 |
| Saline Lake | LA | Lake, Freshwater | Not Supporting | 2 | 2,026 |
| Sallie | MN | Lake, Freshwater | Not Supporting | 1 | 1,257 |
| Salmon Bay | WA | Lake/Reservoir/Pond | Not Supporting | 2 | 283 |
| Salmon Brook | NH | Impoundment | Not Supporting | 1 | 14 |
| Salmon Brook | NH | Impoundment | Not Supporting | 1 | 20 |
| Salmon Brook II Dam | NH | Impoundment | Not Supporting | 1 | 2.10 |
| Salmon Falls Creek Reservoir | ID | Lake, Freshwater | Not Supporting | 4 | 2,649 |
| Salmon Falls River | ME | Lake, Freshwater | Fully Supporting | 0 | 3,766 |
| Salmon Falls River | ME | Lake, Freshwater | Fully Supporting | 0 | 150 |
| Salmon Falls River - Baxter Mill Dam Pond | NH | Impoundment | Not Supporting | 4 | 157 |
| Salmon Falls River - Great Falls Upper Dam | NH | Impoundment | Not Supporting | 3 | 50 |
| Salmon Falls River - Lower Great Falls Dam | NH | Impoundment | Not Supporting | 3 | 33 |
| Salmon Falls River - Milton Leather Board Dam | NH | Impoundment | Not Supporting | 1 | 3.70 |
| Salmon Falls River - Rollinsford Dam | NH | Impoundment | Not Supporting | 3 | 57 |
| Salmon Falls River - Salmon Falls River Dam II | NH | Impoundment | Not Supporting | 1 | 1.00 |
| Salmon Falls River - Salmon Falls River II | NH | Impoundment | Not Supporting | 1 | 5.00 |
| Salmon Falls River - Salmon Falls River VII | NH | Impoundment | Not Supporting | 1 | 0.50 |
| Salmon Falls River - South Berwick Dam | NH | Impoundment | Not Supporting | 5 | 58 |
| Salmon Falls River - Waumbek Dam | NH | Impoundment | Not Supporting | 1 | 6.00 |
| Salmon Falls River Rowe Dam | NH | Lake/Reservoir/Pond | Not Supporting | 1 | 45 |