Lakes / Indiana / Decatur County
Lakes in Decatur County, Indiana
3 lakes counted in Decatur County - the largest is Lake Santee at 214.33 acres.
3
Lakes Counted
214.33 acres
Largest - Lake Santee
Decatur County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Santee | Decatur | 214.33 acres | - |
| 2 | Middle Fork Lake | Decatur | 31.38 acres | - |
| 3 | Lake McCoy | Decatur | 31.24 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.