Lakes / Massachusetts / Bristol County / Somerset Reservoir
Somerset Reservoir, Massachusetts
171.7 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Massachusetts
41.78 degrees N, 71.14 degrees W - Bristol County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Massachusetts Division of Fisheries and Wildlife coordinates, not by eye. Schematic - not a survey map.
How Somerset Reservoir Stacks Up
- Larger than 83% of the 784 lakes counted in Massachusetts.
- About 40 miles from Boston, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Milford Pond | Bristol | 4.0 mi | 30.89 acres |
| Warren Reservoir | Bristol | 4.8 mi | 82.86 acres |
| Forge Pond | Bristol | 4.9 mi | 55.85 acres |
| Warren Upper Reservoir | Bristol | 5.1 mi | 139.9 acres |
| Watuppa Pond | Bristol | 5.5 mi | 1,758.37 acres |
| Copicut Reservoir | Bristol | 7.4 mi | 621 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Somerset Reservoir
How Big Is Somerset Reservoir?
Somerset Reservoir covers 171.7 acres in Bristol County, Massachusetts.
What Is the Largest Lake in Bristol County?
Watuppa Pond is the largest lake in Bristol County, at 1,758.37 acres.
Deepest Natural Lakes in Massachusetts
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Walden Pond | Middlesex | 62 acres | 100 ft |
| 2 | Cliff Pond | Barnstable | 206 acres | 96 ft |
| 3 | Wallum Lake | Worcester | 322 acres | 81 ft |
| 4 | Onota Lake | Berkshire | 653 acres | 72 ft |
| 5 | Ashumet Pond | Barnstable | 220 acres | 69 ft |
All 211 Massachusetts lakes ranked by depth
Largest Lakes in Massachusetts
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Quabbin Reservoir | Franklin | 24,012 acres | - |
| 2 | Wachusett Reservoir | Worcester | 4,041 acres | - |
| 3 | Assawompset Pond | Plymouth | 2,652.37 acres | - |
| 4 | Watuppa Pond | Bristol | 1,758.37 acres | - |
| 5 | South Watuppa Pond | Bristol | 1,460 acres | 23 ft |
All 784 Massachusetts lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 127685464). Verified October 30, 2026.