| Swan Lake | |
|---|---|
| United States Environmental Protection Agency | |
| Location | Carroll County, Iowa, USA |
| Lake type | reservoir |
| Primary inflows | unnamed tributary to the Middle Raccoon River |
| Primary outflows | unnamed tributary to the Middle Raccoon River |
| Basin countries | United States |
Swan Lake is a 116-acre (0.5 km2) reservoir on an unnamed tributary of the Middle Raccoon River, just south and east of Carroll, Iowa. It is the southernn terminus of the Sauk Rail Trail, a path linking the lake to Blackhawk State Park in Sac County.