Lakes / New York / Stillwater Reservoir
Stillwater Reservoir, New York
6,034 acres
Surface Area
32 ft
Max Depth
6 ft
Average Depth
78.4 mi
Shoreline
1,679 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - New York
43.93 degrees N, 74.92 degrees W - Herkimer County. 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 - Stillwater Reservoir
Schematic cross-section drawn to one shared depth scale - not a survey or bathymetric map.
How Stillwater Reservoir Stacks Up
- The largest lake in Herkimer County among those counted.
- About 86 miles from Syracuse, as the crow flies.
- 5 fish species on the DEC list for this lake.
Fish Species
Smallmouth BassYellow PerchBrook TroutBrown BullheadSplake
Species recorded for this lake. Presence only - no abundance ratings.
Facts and Figures
Waterbody ID131843435
CountyHerkimer
Coordinates43.9273, -74.9223
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 131843435); USGS. Verified October 30, 2026.