Lakes / New York / Seneca Lake
Seneca Lake, New York
43,343 acres
Surface Area
618 ft
Max Depth
443 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - New York
42.44 degrees N, 76.87 degrees W - spans Ontario, Yates, Seneca, Schuyler Counties. State and county outlines drawn from Census boundary data; the lake marker is placed by its New York State DEC coordinates, not by eye. Schematic - not a survey map.
Depth Profile - Seneca Lake
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Seneca Lake Stacks Up
- The deepest natural lake counted in New York - 618 ft at its deepest.
- Ranks #5 for surface area among the New York lakes counted so far - 43,343 acres.
- The largest lake in Ontario County among those counted.
- About 56 miles from Syracuse, as the crow flies.
Fish Species
Northern PikeSmallmouth BassLargemouth BassBluegillPumpkinseedYellow PerchLake TroutBrown TroutRainbow TroutRock BassAlewifeAtlantic SalmonBrown BullheadSea LampreySmelt
Species recorded for this lake. Presence only - no abundance ratings.
Facts and Figures
Waterbody ID87965156
CountyOntario, Yates, Seneca, Schuyler
Coordinates42.4428, -76.8730
Deepest Natural Lakes in New York
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Seneca Lake | Ontario, Yates, Seneca, Schuyler | 43,343 acres | 618 ft |
| 2 | Cayuga Lake | Cayuga | 42,956 acres | 435 ft |
| 3 | Skaneateles Lake | Onondaga, Cortland, Cayuga | 8,960 acres | 300 ft |
| 4 | Canandaigua Lake | Ontario, Yates | 10,558 acres | 276 ft |
| 5 | Lake George | Essex, Warren | 28,451 acres | 187 ft |
Largest Lakes in New York
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Erie | Erie | 6,360,010 acres | - |
| 2 | Lake Ontario | Jefferson | 4,656,925 acres | - |
| 3 | Lake Champlain | Washington | 277,117 acres | - |
| 4 | Oneida Lake | Oswego | 51,324 acres | - |
| 5 | Seneca Lake | Ontario, Yates, Seneca, Schuyler | 43,343 acres | 618 ft |
Sources: New York State DEC lake data (ID 87965156); USGS. Verified October 30, 2026.