Lakes / Oregon / Linn County / Foster Lake
Foster Lake, Linn County, Oregon
1,052 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
44.42 degrees N, 122.64 degrees W - Linn 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 Foster Lake Stacks Up
- Larger than 90% of the 642 lakes counted in Oregon.
- The largest lake in Linn County among those counted.
- About 33 miles from Eugene, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Willamette Log Pond | Linn | 1.3 mi | 52 acres |
| Cheadle Lake | Linn | 14 mi | 72 acres |
| Snow Peak Log Pond | Linn | 17 mi | 61 acres |
| Western Log Pond | Linn | 17 mi | 42 acres |
| Blue River Lake | Lane | 24 mi | 814 acres |
| Walterville Reservoir | Lane | 25 mi | 63 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Foster Lake
How Big Is Foster Lake?
Foster Lake covers 1,052 acres in Linn County, Oregon.
What Is the Largest Lake in Linn County?
Foster Lake is the largest lake in Linn County, at 1,052 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 86625870). Verified October 30, 2026.