Lakes in Somerset County, Pennsylvania

11 lakes counted in Somerset County - the largest is Quemahoning Reservoir at 899 acres.

Lakes Counted

899 acres

Largest - Quemahoning Reservoir

Somerset County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.

All Counted Lakes

#	Lake	County	Surface Area	Max Depth
1	Quemahoning Reservoir	Somerset	899 acres	None
2	Indian Lake	Somerset	497.2 acres	None
3	High Point Lake	Somerset	338 acres	None
4	Somerset Lake **DRAWDOWN STATUS	Somerset	253 acres	None
5	Lake Stonycreek	Somerset	162.8 acres	None
6	Deer Valley Lake	Somerset	114.2 acres	None
7	Cranberry Glade Lake	Somerset	72 acres	None
8	Laurel Hill Lake	Somerset	63 acres	About 16 ft
9	Stoughton Lake	Somerset	42.5 acres	None
10	Lake Gloria	Somerset	34.1 acres	None
11	Kooser Lake	Somerset	4 acres	About 12 ft

Sources: Pennsylvania Fish and Boat Commission lake data; USGS. Verified October 28, 2026.