Lakes / Oregon / Coos County / Tenmile Lake
Tenmile Lake, Oregon
1,139 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
43.56 degrees N, 124.14 degrees W - Coos 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 Tenmile Lake Stacks Up
- Larger than 90% of the 642 lakes counted in Oregon.
- The largest lake in Coos County among those counted.
- About 63 miles from Eugene, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| North Tenmile Lake | Coos | 2.3 mi | 830 acres |
| Eel Lake | Douglas | 3.6 mi | 347 acres |
| Saunders Lake | Coos | 4.2 mi | 56 acres |
| Lake Edna | Douglas | 5.2 mi | 35 acres |
| Beale Lake | Coos | 5.9 mi | 54 acres |
| Clear Lake | Douglas | 6.0 mi | 310 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Tenmile Lake
How Big Is Tenmile Lake?
Tenmile Lake covers 1,139 acres in Coos County, Oregon.
What Is the Largest Lake in Coos County?
Tenmile Lake is the largest lake in Coos County, at 1,139 acres.
Largest Lakes in Oregon
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Upper Klamath Lake | Klamath | 62,095 acres | - |
| 2 | Lake Umatilla | Morrow | 50,042 acres | - |
| 3 | Lake Abert | Lake | 37,137 acres | - |
| 4 | Summer Lake | Lake | 31,602 acres | - |
| 5 | Harney Lake | Harney | 31,290 acres | - |
All 642 Oregon 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 122430499). Verified October 30, 2026.