Lakes / Washington / Cowlitz County
Lakes in Cowlitz County, Washington
8 lakes counted in Cowlitz County - the largest is Yale Lake at 3,595 acres.
8
Lakes Counted
3,595 acres
Largest - Yale Lake
Cowlitz County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Yale Lake | Cowlitz | 3,595 acres | - |
| 2 | Silver Lake | Cowlitz | 1,989 acres | About 10 ft |
| 3 | Castle Lake | Cowlitz | 279 acres | - |
| 4 | Merrill Lake | Cowlitz | 277 acres | About 77 ft |
| 5 | Log Pond | Cowlitz | 141 acres | - |
| 6 | Lake Sacajawea | Cowlitz | 45 acres | - |
| 7 | Coweeman Lake | Cowlitz | 5 acres | - |
| 8 | Lakeview Peak Lake | Cowlitz | 3 acres | - |
Sources: Washington DFW lake data; USGS. Verified October 30, 2026.