Lakes / Ohio / Alum Creek Lake
Alum Creek Lake, Ohio
3,331 acres
Surface Area
60 ft
Max Depth
68.59 mi
Shoreline
886 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Ohio
40.23 degrees N, 82.96 degrees W - Delaware County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Ohio DNR coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Alum Creek Lake
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Alum Creek Lake Stacks Up
- Ranks #6 for surface area among the Ohio lakes counted so far - 3,331 acres.
- The largest lake in Delaware County among those counted.
- About 19 miles from Columbus, as the crow flies.
Facts and Figures
Waterbody IDoh-alum-creek-lake-39041
CountyDelaware
Shoreline68.59 mi
Coordinates40.2330, -82.9647
Deepest Natural Lakes in Ohio
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | McKarns Lake | Williams | 40 acres | 75 ft |
| 2 | Portage Lakes | Summit | 474 acres | 60 ft |
| 3 | Punderson Lake | Geauga | 80 acres | 55 ft |
| 4 | Wolf Run Lake | Noble | 208 acres | 51 ft |
| 5 | Barton Lake | Williams | 19 acres | 42 ft |
Largest Lakes in Ohio
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Grand Lake St. Marys | Mercer | 13,356 acres | 14 ft |
| 2 | Mosquito Creek Lake | Trumbull | 7,212 acres | 24 ft |
| 3 | Indian Lake | Logan | 5,161 acres | 12 ft |
| 4 | Seneca Lake | Noble | 3,550 acres | 21 ft |
| 5 | Berlin Lake | Portage | 3,344 acres | 60 ft |
Sources: Ohio Department of Natural Resources lake data (ID oh-alum-creek-lake-39041); USGS. Verified October 28, 2026.