Lakes / Utah / Washington County / Gunlock Reservoir
Gunlock Reservoir, Utah
251.8 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Utah
37.26 degrees N, 113.78 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 Gunlock Reservoir Stacks Up
- Larger than 74% of the 298 lakes counted in Utah.
- About 16 miles from St. George, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Ivins Reservoir | Washington | 6.3 mi | 37.44 acres |
| Baker Reservoir | Washington | 11 mi | 40.28 acres |
| Upper Enterprise Reservoir | Washington | 19 mi | 354 acres |
| Lower Enterprise Reservoir | Washington | 19 mi | 49.92 acres |
| Quail Creek Reservoir | Washington | 22 mi | 615.65 acres |
| Sand Hollow Reservoir | Washington | 24 mi | 1,176.35 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Gunlock Reservoir
How Big Is Gunlock Reservoir?
Gunlock Reservoir covers 251.8 acres in Washington County, Utah.
What Is the Largest Lake in Washington County?
Sand Hollow Reservoir is the largest lake in Washington County, at 1,176.35 acres.
Largest Lakes in Utah
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Great Salt Lake | Box Elder | 925,981.5 acres | - |
| 2 | Lake Powell | Kane | 128,544.01 acres | - |
| 3 | Sevier Lake | Millard | 122,527.82 acres | - |
| 4 | Utah Lake | Utah | 91,155.46 acres | - |
| 5 | Bear Lake | Rich | 70,008.54 acres | - |
All 298 Utah lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 33032861). Verified October 30, 2026.