Lakes / Arkansas / Arkansas County / Knoff Reservoir
Knoff Reservoir, Arkansas
37 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Arkansas
34.42 degrees N, 91.42 degrees W - Arkansas 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 Knoff Reservoir Stacks Up
- Larger than 24% of the 623 lakes counted in Arkansas.
- About 54 miles from Little Rock, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Bennett Reservoir | Arkansas | 2.1 mi | 146 acres |
| Voss Reservoir | Arkansas | 2.6 mi | 39 acres |
| Hillman Reservoir Number Two | Arkansas | 4.0 mi | 157 acres |
| Hillman Reservoir | Arkansas | 4.1 mi | 33 acres |
| Tindall Lake | Arkansas | 4.1 mi | 59 acres |
| Walworth Reservoir | Arkansas | 4.4 mi | 297 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Knoff Reservoir
How Big Is Knoff Reservoir?
Knoff Reservoir covers 37 acres in Arkansas County, Arkansas.
What Is the Largest Lake in Arkansas County?
Pecan Lake is the largest lake in Arkansas County, at 921 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 143939336). Verified October 30, 2026.