Lakes / Oregon / Washington County / Barney Reservoir
Barney Reservoir, Oregon
342 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
45.44 degrees N, 123.38 degrees W - Washington 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 Barney Reservoir Stacks Up
- Larger than 79% of the 642 lakes counted in Oregon.
- About 35 miles from Portland, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Henry Hagg Lake | Washington | 8.5 mi | 1,086 acres |
| Stimson Millpond | Washington | 9.6 mi | 46 acres |
| McGuire Reservoir | Yamhill | 9.7 mi | 181 acres |
| Skookum Lake | Tillamook | 16 mi | 36 acres |
| Horseshoe Lake | Marion | 24 mi | 27 acres |
| Skookum Lakes | Marion | 24 mi | 29 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Barney Reservoir
How Big Is Barney Reservoir?
Barney Reservoir covers 342 acres in Washington County, Oregon.
What Is the Largest Lake in Washington County?
Henry Hagg Lake is the largest lake in Washington County, at 1,086 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 105846366). Verified October 30, 2026.