Lakes / Oklahoma / McIntosh County / Onapa Lake
Onapa Lake, Oklahoma
67.95 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oklahoma
35.40 degrees N, 95.57 degrees W - McIntosh 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 Onapa Lake Stacks Up
- Larger than 54% of the 376 lakes counted in Oklahoma.
- About 26 miles from Muskogee, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Eufaula Lake | Pittsburg | 15 mi | 100,734.12 acres |
| Boynton Lake | Muskogee | 19 mi | 34.1 acres |
| Cane Creek Site 22 Reservoir | Muskogee | 19 mi | 32.37 acres |
| Crowder Reservoir | Pittsburg | 20 mi | 28.5 acres |
| Cane Creek Site 18 Reservoir | Okmulgee | 20 mi | 31.38 acres |
| Lake Henryetta | Okmulgee | 21 mi | 524.01 acres |
Straight-line distance between lake centers.
Facts and Figures
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 130552343). Verified October 30, 2026.