Lakes / New Jersey / Hunterdon County
Lakes in Hunterdon County, New Jersey
3 lakes counted in Hunterdon County - the largest is Round Valley Reservoir at 2,272.23 acres.
3
Lakes Counted
2,272.23 acres
Largest - Round Valley Reservoir
Hunterdon County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Round Valley Reservoir | Hunterdon | 2,272.23 acres | - |
| 2 | Spruce Run Reservoir | Hunterdon | 1,354.88 acres | - |
| 3 | Cushetunk Lake | Hunterdon | 25.45 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.