Lakes / Arkansas / Johnson County / Hartman Lake
Hartman Lake, Arkansas
215 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Arkansas
35.42 degrees N, 93.64 degrees W - Johnson 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 Hartman Lake Stacks Up
- Larger than 79% of the 623 lakes counted in Arkansas.
- About 43 miles from Fort Smith, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Paris Reservoir | Logan | 11 mi | 165 acres |
| Cove Lake | Logan | 13 mi | 126 acres |
| Lake Ludwig | Johnson | 14 mi | 222 acres |
| Ozark City Lake | Franklin | 14 mi | 408 acres |
| Lake Dardanelle | Johnson | 14 mi | 34,067 acres |
| Harris Pond | Johnson | 15 mi | 26 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Hartman Lake
How Big Is Hartman Lake?
Hartman Lake covers 215 acres in Johnson County, Arkansas.
What Is the Largest Lake in Johnson County?
Lake Dardanelle is the largest lake in Johnson County, at 34,067 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 68506477). Verified October 30, 2026.