Lakes / California / San Luis Obispo County
Lakes in San Luis Obispo County, California
9 lakes counted in San Luis Obispo County - the largest is Lake Nacimiento at 2,985 acres.
9
Lakes Counted
2,985 acres
Largest - Lake Nacimiento
San Luis Obispo County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Nacimiento | San Luis Obispo | 2,985 acres | - |
| 2 | Lopez Lake | San Luis Obispo | 586 acres | - |
| 3 | Whale Rock Reservoir | San Luis Obispo | 524 acres | - |
| 4 | Santa Margarita Lake | San Luis Obispo | 146 acres | - |
| 5 | Laguna Lake | San Luis Obispo | 100 acres | - |
| 6 | White Lake | San Luis Obispo | 45 acres | - |
| 7 | Oso Flaco Lake | San Luis Obispo | 40 acres | - |
| 8 | Lopez Reservoir | San Luis Obispo | 29 acres | - |
| 9 | Atascadero Lake | San Luis Obispo | 27 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.