Lakes / Maryland / Washington County / Big Pool
Big Pool, Maryland
93 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Maryland
39.62 degrees N, 78.01 degrees W - Washington 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 Big Pool Stacks Up
- Larger than 73% of the 78 lakes counted in Maryland.
- The largest lake in Washington County among those counted.
- About 35 miles from Frederick, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Blairs Valley Lake | Washington | 6.8 mi | 26 acres |
| Greenbriar Lake | Washington | 22 mi | 27 acres |
| Hunting Creek Lake | Frederick | 29 mi | 41 acres |
| Lake Habeeb | Allegany | 34 mi | 198 acres |
| Little Seneca Lake | Montgomery | 48 mi | 480 acres |
Straight-line distance between lake centers.
Facts and Figures
Waterbody ID{301B30C7-02B4-42F2-9DD4-96CBFD2911D6}
CountyWashington
Lake TypeLake
Coordinates39.6165, -78.0139
Questions About Big Pool
How Big Is Big Pool?
Big Pool covers 93 acres in Washington County, Maryland.
What Is the Largest Lake in Washington County?
Big Pool is the largest lake in Washington County, at 93 acres.
Largest Lakes in Maryland
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Deep Creek Lake | Garrett | 3,679 acres | - |
| 2 | Liberty Lake | Carroll | 2,920 acres | - |
| 3 | Loch Raven Reservoir | Baltimore | 2,200 acres | - |
| 4 | Prettyboy Reservoir | Baltimore | 1,508 acres | - |
| 5 | Triadelphia Reservoir | Montgomery | 794 acres | - |
All 78 Maryland lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID {301B30C7-02B4-42F2-9DD4-96CBFD2911D6}). Verified October 30, 2026.