Lakes / Connecticut / Middlesex County / Hidden Lake
Hidden Lake, Connecticut
37.81 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Connecticut
41.42 degrees N, 72.57 degrees W - Middlesex 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 Hidden Lake Stacks Up
- Larger than 24% of the 363 lakes counted in Connecticut.
- About 20 miles from New Haven, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Pattaconk Reservoir | Middlesex | 2.2 mi | 50.82 acres |
| Turkey Hill Reservoir | Middlesex | 2.4 mi | 52.14 acres |
| Cedar Lake | Middlesex | 3.9 mi | 72.01 acres |
| Lake Hammonasset | Middlesex | 4.1 mi | 243.42 acres |
| Killingworth Reservoir | Middlesex | 4.2 mi | 80.06 acres |
| Foster Pond | Middlesex | 4.5 mi | 36.62 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Hidden Lake
How Big Is Hidden Lake?
Hidden Lake covers 37.81 acres in Middlesex County, Connecticut.
What Is the Largest Lake in Middlesex County?
Pocotopaug Lake is the largest lake in Middlesex County, at 511.28 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 122174665). Verified October 30, 2026.