Lakes / Arkansas / Prairie County / Lost Island Reservoir
Lost Island Reservoir, Arkansas
258 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Arkansas
34.57 degrees N, 91.51 degrees W - Prairie 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 Lost Island Reservoir Stacks Up
- Larger than 82% of the 623 lakes counted in Arkansas.
- About 46 miles from Little Rock, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Aker Reservoir | Prairie | 1.2 mi | 111 acres |
| Bull-Galloway Reservoir | Prairie | 1.4 mi | 257 acres |
| Menett Reservoir | Prairie | 2.5 mi | 45 acres |
| Brother Reservoir | Arkansas | 3.0 mi | 632 acres |
| Hammonds Reservoir | Arkansas | 3.8 mi | 96 acres |
| Fridenburg Reservoir | Arkansas | 4.2 mi | 316 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lost Island Reservoir
How Big Is Lost Island Reservoir?
Lost Island Reservoir covers 258 acres in Prairie County, Arkansas.
What Is the Largest Lake in Prairie County?
Peckerwood Lake is the largest lake in Prairie County, at 2,311 acres.
Largest Lakes in Arkansas
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Bull Shoals Lake | Marion | 44,979 acres | - |
| 2 | Lake Ouachita | Garland | 38,214 acres | - |
| 3 | Lake Dardanelle | Johnson | 34,067 acres | - |
| 4 | Greers Ferry Lake | Cleburne | 31,054 acres | - |
| 5 | Beaver Lake | Benton | 28,026 acres | - |
All 623 Arkansas 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 143938577). Verified October 30, 2026.