Lakes / Kentucky / Hopkins County / Loch Mary Reservoir
Loch Mary Reservoir, Kentucky
147 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Kentucky
37.27 degrees N, 87.52 degrees W - Hopkins 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 Loch Mary Reservoir Stacks Up
- Larger than 71% of the 160 lakes counted in Kentucky.
- About 61 miles from Paducah, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Browns Lake | Hopkins | 1.1 mi | 53 acres |
| Pleasant View Lake | Hopkins | 3.4 mi | 54 acres |
| Grapevine Lake | Hopkins | 3.5 mi | 39 acres |
| Lake Peewee | Hopkins | 6.0 mi | 398 acres |
| Homestead Lake | Hopkins | 6.8 mi | 36 acres |
| Nortonville Lake | Hopkins | 6.8 mi | 26 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Loch Mary Reservoir
How Big Is Loch Mary Reservoir?
Loch Mary Reservoir covers 147 acres in Hopkins County, Kentucky.
What Is the Largest Lake in Hopkins County?
Lake Peewee is the largest lake in Hopkins County, at 398 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 40495304). Verified October 30, 2026.