Lakes / New York / Nassau County
Lakes in Nassau County, New York
11 lakes counted in Nassau County - the largest is Hempstead Lake at 132 acres.
11
Lakes Counted
132 acres
Largest - Hempstead Lake
7 ft
Deepest - South Pond
Nassau County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Hempstead Lake | Nassau | 132 acres | - |
| 2 | Dosoris Pond | Nassau | 103 acres | - |
| 3 | Beaver Lake | Nassau | 63 acres | - |
| 4 | Massapequa Lake | Nassau | 40 acres | 5 ft |
| 5 | Gugenheim Pond | Nassau | 37 acres | - |
| 6 | Lake Success | Nassau | 31 acres | - |
| 7 | Hempstead Lake | Nassau | 29 acres | - |
| 8 | Seaman Pond | Nassau | 26 acres | - |
| 9 | Smith Pond | Nassau | 26 acres | - |
| 10 | South Pond | Nassau | 19 acres | 7 ft |
| 11 | Hempstead Lake | Nassau | 3 acres | - |
Sources: New York State DEC lake data; USGS. Verified October 30, 2026.