Lakes / Connecticut / New Haven County / East Mountain Reservoir
East Mountain Reservoir, Connecticut
33.74 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Connecticut
41.53 degrees N, 73.01 degrees W - New Haven County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How East Mountain Reservoir Stacks Up
- Larger than 18% of the 363 lakes counted in Connecticut.
- About 3 miles from Waterbury, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Old Naugatuck Reservoir | New Haven | 3.0 mi | 54.45 acres |
| Great Brook Reservoir | New Haven | 3.8 mi | 55.42 acres |
| Hitchcock Lake | New Haven | 4.0 mi | 48.06 acres |
| New Naugatuck Reservoir | New Haven | 4.0 mi | 95.45 acres |
| Scovill Reservoir | New Haven | 4.4 mi | 118.36 acres |
| Tracys Pond | New Haven | 4.6 mi | 31.49 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About East Mountain Reservoir
How Big Is East Mountain Reservoir?
East Mountain Reservoir covers 33.74 acres in New Haven County, Connecticut.
What Is the Largest Lake in New Haven County?
Lake Gaillard is the largest lake in New Haven County, at 1,090.97 acres.
Largest Lakes in Connecticut
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Candlewood | Fairfield | 5,127.26 acres | - |
| 2 | Barkhamsted Reservoir | Litchfield | 2,231.71 acres | - |
| 3 | Lake Lillinonah | Litchfield | 1,531.02 acres | - |
| 4 | Lake Gaillard | New Haven | 1,090.97 acres | - |
| 5 | Bantam Lake | Litchfield | 953.89 acres | - |
All 363 Connecticut lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 122980415). Verified October 30, 2026.