Lakes / Oregon / Lake County / Thompson Reservoir
Thompson Reservoir, Oregon
2,159 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
42.94 degrees N, 121.09 degrees W - Lake 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 Thompson Reservoir Stacks Up
- Larger than 93% of the 642 lakes counted in Oregon.
- About 78 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Foster Lake | Lake | 7.0 mi | 102 acres |
| Silver Creek Reservoir | Lake | 10 mi | 41 acres |
| Duncan Reservoir | Lake | 11 mi | 40 acres |
| Silver Lake | Lake | 15 mi | 10,452 acres |
| Jacks Lakes | Lake | 15 mi | 25 acres |
| Ward Lake | Lake | 16 mi | 120 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Thompson Reservoir
How Big Is Thompson Reservoir?
Thompson Reservoir covers 2,159 acres in Lake County, Oregon.
What Is the Largest Lake in Lake County?
Lake Abert is the largest lake in Lake County, at 37,137 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 149433072). Verified October 30, 2026.