Lakes / Connecticut / New Haven County / Seymour Reservoir Number Four
Seymour Reservoir Number Four, Connecticut
37.83 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Connecticut
41.45 degrees N, 73.09 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 Seymour Reservoir Number Four Stacks Up
- Larger than 24% of the 363 lakes counted in Connecticut.
- About 8 miles from Waterbury, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Seymour Reservoir Number Two | New Haven | 0.8 mi | 34.57 acres |
| Towantic Pond | New Haven | 2.1 mi | 27.04 acres |
| Swan Lake | New Haven | 2.8 mi | 28.63 acres |
| Long Meadow Pond | New Haven | 3.3 mi | 65.23 acres |
| Old Naugatuck Reservoir | New Haven | 5.1 mi | 54.45 acres |
| Peat Swamp Reservoir | New Haven | 5.6 mi | 65.32 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Seymour Reservoir Number Four
How Big Is Seymour Reservoir Number Four?
Seymour Reservoir Number Four covers 37.83 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 122962039). Verified October 30, 2026.