Lakes / Oklahoma / Oklahoma County / Lake Hefner
Lake Hefner, Oklahoma
2,499.98 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oklahoma
35.57 degrees N, 97.60 degrees W - Oklahoma 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 Lake Hefner Stacks Up
- Larger than 91% of the 376 lakes counted in Oklahoma.
- The largest lake in Oklahoma County among those counted.
- About 8 miles from Oklahoma City, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Ski Island Lake | Oklahoma | 1.8 mi | 38.8 acres |
| Oknoname 12 Reservoir | Oklahoma | 3.9 mi | 31.14 acres |
| Oknoname 10 Reservoir | Oklahoma | 5.4 mi | 31.38 acres |
| Lake Overholser | Canadian | 6.6 mi | 1,581.61 acres |
| Northeast Lake | Oklahoma | 7.7 mi | 38.3 acres |
| Northwood Lake | Canadian | 10 mi | 73.39 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Hefner
How Big Is Lake Hefner?
Lake Hefner covers 2,499.98 acres in Oklahoma County, Oklahoma.
What Is the Largest Lake in Oklahoma County?
Lake Hefner is the largest lake in Oklahoma County, at 2,499.98 acres.
Largest Lakes in Oklahoma
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Eufaula Lake | Pittsburg | 100,734.12 acres | - |
| 2 | Lake Texoma | Marshall | 59,414.43 acres | - |
| 3 | Grand Lake O' The Cherokees | Delaware | 38,902.36 acres | - |
| 4 | Robert S Kerr Reservoir | Haskell | 35,795.91 acres | - |
| 5 | Oologah Lake | Rogers | 29,728.7 acres | - |
All 376 Oklahoma lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 107587897). Verified October 30, 2026.