Lakes / Massachusetts / Barnstable County / Crystal Lake
Crystal Lake, Barnstable County, Massachusetts
33.11 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Massachusetts
41.77 degrees N, 69.98 degrees W - Barnstable 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 Crystal Lake Stacks Up
- Larger than 20% of the 784 lakes counted in Massachusetts.
- About 68 miles from Boston, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Pilgrim Lake | Barnstable | 0.7 mi | 39 acres |
| Baker Pond | Barnstable | 1.2 mi | 26.93 acres |
| Higgins Pond | Barnstable | 1.8 mi | 25 acres |
| Little Cliff Pond | Barnstable | 2.0 mi | 36 acres |
| Flax Pond | Barnstable | 2.3 mi | 46.95 acres |
| Cliff Pond | Barnstable | 2.4 mi | 206 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Crystal Lake
How Big Is Crystal Lake?
Crystal Lake covers 33.11 acres in Barnstable County, Massachusetts.
What Is the Largest Lake in Barnstable County?
Long Pond is the largest lake in Barnstable County, at 729.7 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 136679045). Verified October 30, 2026.