Lakes / Kentucky / Grant County / Williamstown Lake
Williamstown Lake, Kentucky
339 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Kentucky
38.67 degrees N, 84.53 degrees W - Grant 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 Williamstown Lake Stacks Up
- Larger than 83% of the 160 lakes counted in Kentucky.
- The largest lake in Grant County among those counted.
- About 28 miles from Covington, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Boltz Lake | Grant | 4.7 mi | 87 acres |
| Bullock Pen Lake | Grant | 10 mi | 119 acres |
| Corinth Lake | Grant | 12 mi | 83 acres |
| Arrowhead Lake | Harrison | 12 mi | 27 acres |
| Kincaid Lake | Pendleton | 14 mi | 236 acres |
| Campbell County Lake | Campbell | 17 mi | 153 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Williamstown Lake
How Big Is Williamstown Lake?
Williamstown Lake covers 339 acres in Grant County, Kentucky.
What Is the Largest Lake in Grant County?
Williamstown Lake is the largest lake in Grant County, at 339 acres.
Largest Lakes in Kentucky
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Cumberland | Wayne | 50,607 acres | - |
| 2 | Lake Barkley | Trigg | 49,076 acres | - |
| 3 | Barren River Lake | Barren | 9,460 acres | - |
| 4 | Green River Lake | Adair | 8,439 acres | - |
| 5 | Cave Run Lake | Rowan | 8,099 acres | - |
All 160 Kentucky 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 32028508). Verified October 30, 2026.