Lakes / Indiana / Decatur County / Lake Santee
Lake Santee, Indiana
214.33 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Indiana
39.40 degrees N, 85.31 degrees W - Decatur County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Lake Santee Stacks Up
- Larger than 83% of the 425 lakes counted in Indiana.
- The largest lake in Decatur County among those counted.
- About 52 miles from Indianapolis, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake McCoy | Decatur | 7.2 mi | 31.24 acres |
| Mollenkramer Reservoir | Ripley | 10 mi | 37.02 acres |
| Bischoff Reservoir | Ripley | 11 mi | 202.73 acres |
| Tall Oaks Lake | Ripley | 13 mi | 49.9 acres |
| Brookville Lake | Franklin | 18 mi | 4,364.22 acres |
| Middle Fork Lake | Decatur | 20 mi | 31.38 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Santee
How Big Is Lake Santee?
Lake Santee covers 214.33 acres in Decatur County, Indiana.
What Is the Largest Lake in Decatur County?
Lake Santee is the largest lake in Decatur County, at 214.33 acres.
Largest Lakes in Indiana
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Monroe Lake | Monroe | 11,112.45 acres | - |
| 2 | Patoka Lake | Orange | 9,120.83 acres | - |
| 3 | Brookville Lake | Franklin | 4,364.22 acres | - |
| 4 | Lake Wawasee | Kosciusko | 3,426.28 acres | - |
| 5 | Broad Pond | Gibson | 2,941.52 acres | - |
All 425 Indiana lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 108585887). Verified October 30, 2026.