Lakes / Virginia / Fairfax County / Lake Thoreau
Lake Thoreau, Virginia
40.77 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Virginia
38.94 degrees N, 77.33 degrees W - Fairfax 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 Lake Thoreau Stacks Up
- Larger than 35% of the 329 lakes counted in Virginia.
- About 88 miles from Charlottesville, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Audubon | Fairfax | 0.5 mi | 45.96 acres |
| Lake Anne | Fairfax | 1.9 mi | 25.2 acres |
| Dulles Airport Pond | Loudoun | 6.2 mi | 26.19 acres |
| Lake Royal | Fairfax | 9.6 mi | 36.82 acres |
| Upper Occoquan Polish Pond | Prince William | 11 mi | 50.16 acres |
| Lake Accotink | Fairfax | 12 mi | 74.13 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Thoreau
How Big Is Lake Thoreau?
Lake Thoreau covers 40.77 acres in Fairfax County, Virginia.
What Is the Largest Lake in Fairfax County?
Occoquan Reservoir is the largest lake in Fairfax County, at 1,302.49 acres.
Largest Lakes in Virginia
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | John H. Kerr Reservoir | Mecklenburg | 44,895.08 acres | - |
| 2 | Smith Mountain Lake | Franklin | 19,676.26 acres | - |
| 3 | Lake Anna | Louisa | 12,672.74 acres | - |
| 4 | Claytor Lake | Pulaski | 4,073.29 acres | - |
| 5 | Lake Drummond | Chesapeake | 3,240.79 acres | - |
All 329 Virginia lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 51772719). Verified October 30, 2026.