Lakes / Massachusetts / Suffolk County / Chestnut Hill Reservoir
Chestnut Hill Reservoir, Massachusetts
82.78 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Massachusetts
42.34 degrees N, 71.16 degrees W - Suffolk 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 Chestnut Hill Reservoir Stacks Up
- Larger than 61% of the 784 lakes counted in Massachusetts.
- The largest lake in Suffolk County among those counted.
- About 4 miles from Cambridge, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Brookline Reservoir | Suffolk | 1.3 mi | 23 acres |
| Crystal Lake | Middlesex | 2.3 mi | 27.18 acres |
| Jamaica Pond | Suffolk | 2.3 mi | 65 acres |
| Fresh Pond | Middlesex | 3.4 mi | 66 acres |
| Spy Pond | Middlesex | 5.0 mi | 102 acres |
| Lower Mystic Lake | Middlesex | 6.3 mi | 92.91 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Chestnut Hill Reservoir
How Big Is Chestnut Hill Reservoir?
Chestnut Hill Reservoir covers 82.78 acres in Suffolk County, Massachusetts.
What Is the Largest Lake in Suffolk County?
Chestnut Hill Reservoir is the largest lake in Suffolk County, at 82.78 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 135695458). Verified October 30, 2026.