Lakes / Pennsylvania / Quemahoning Reservoir
Quemahoning Reservoir, Pennsylvania
899 acres
Surface Area
1,626 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Pennsylvania
40.17 degrees N, 78.96 degrees W - Somerset County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Pennsylvania Fish and Boat Commission coordinates, not by eye. Schematic - not a survey map.
How Quemahoning Reservoir Stacks Up
- The largest lake in Somerset County among those counted.
- About 58 miles from Pittsburgh, as the crow flies.
Facts and Figures
Waterbody ID401054785636
CountySomerset
Fishing IncludesWalleye, Northern Pike, Smallmouth Bass, Largemouth Bass, Black Crappie, Yellow Perch, Bluegill, Rock Bass
Coordinates40.1657, -78.9629
Deepest Natural Lakes in Pennsylvania
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Struble Lake | Chester | 146 acres | 19 ft |
Largest Lakes in Pennsylvania
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Pymatuning Reservoir | Crawford | 13,920 acres | About 25 ft |
| 2 | Allegheny Reservoir | Warren | 12,081 acres | 128 ft |
| 3 | Raystown Lake | Huntingdon | 8,297 acres | None |
| 4 | Lake Wallenpaupack | Pike, Wayne | 5,698 acres | 60 ft |
| 5 | Shenango River Lake | Mercer | 3,559 acres | 30 ft |
Sources: Pennsylvania Fish and Boat Commission lake data (ID 401054785636); USGS; Pennsylvania Fish and Boat Commission, WWCW Fisheries Lakes (PASDA PAFishBoat layer 27). Verified October 28, 2026.