Lakes / Connecticut / Fairfield County / Mianus Reservoir
Mianus Reservoir, Connecticut
200.9 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Connecticut
41.14 degrees N, 73.61 degrees W - Fairfield 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 Mianus Reservoir Stacks Up
- Larger than 86% of the 363 lakes counted in Connecticut.
- About 7 miles from Stamford, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Converse Lake | Fairfield | 2.2 mi | 99.83 acres |
| Rockwood Lake | Fairfield | 3.0 mi | 57.82 acres |
| Laurel Reservoir | Fairfield | 3.8 mi | 258.47 acres |
| North Stamford Reservoir | Fairfield | 3.9 mi | 103.54 acres |
| Putnam Lake | Fairfield | 3.9 mi | 95.63 acres |
| Mianus River Pond | Fairfield | 6.6 mi | 51.55 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Mianus Reservoir
How Big Is Mianus Reservoir?
Mianus Reservoir covers 200.9 acres in Fairfield County, Connecticut.
What Is the Largest Lake in Fairfield County?
Lake Candlewood is the largest lake in Fairfield County, at 5,127.26 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 122243212). Verified October 30, 2026.