Lakes / Pennsylvania / Allegheny County
Lakes in Allegheny County, Pennsylvania
6 lakes counted in Allegheny County - the largest is North Park Lake at 75 acres.
6
Lakes Counted
75 acres
Largest - North Park Lake
Allegheny County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | North Park Lake | Allegheny | 75 acres | None |
| 2 | Marshall Lake | Allegheny | 10 acres | None |
| 3 | Upper Deer Lake | Allegheny | 4 acres | None |
| 4 | Middle Deer Lake | Allegheny | 3 acres | None |
| 5 | Lower Deer Lake | Allegheny | 3 acres | None |
| 6 | Pine Township Park Pond | Allegheny | 2 acres | None |
Sources: Pennsylvania Fish and Boat Commission lake data; USGS. Verified October 28, 2026.