Lakes / California / San Luis Obispo County / Lake Nacimiento
Lake Nacimiento, California
2,985 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
35.74 degrees N, 120.94 degrees W - San Luis Obispo 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 Lake Nacimiento Stacks Up
- Larger than 95% of the 1,147 lakes counted in California.
- The largest lake in San Luis Obispo County among those counted.
- About 94 miles from Fresno, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake San Antonio | Monterey | 4.9 mi | 823 acres |
| Whale Rock Reservoir | San Luis Obispo | 20 mi | 524 acres |
| Lower Stoney Creek Reservoir | Monterey | 24 mi | 27 acres |
| Atascadero Lake | San Luis Obispo | 25 mi | 27 acres |
| Laguna Lake | San Luis Obispo | 36 mi | 100 acres |
| Santa Margarita Lake | San Luis Obispo | 38 mi | 146 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Nacimiento
How Big Is Lake Nacimiento?
Lake Nacimiento covers 2,985 acres in San Luis Obispo County, California.
What Is the Largest Lake in San Luis Obispo County?
Lake Nacimiento is the largest lake in San Luis Obispo County, at 2,985 acres.
Largest Lakes in California
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Salton Sea | Imperial | 233,096 acres | - |
| 2 | Lake Tahoe | Placer | 122,975 acres | - |
| 3 | Goose Lake | Modoc | 93,048 acres | - |
| 4 | Honey Lake | Lassen | 59,917 acres | - |
| 5 | Mono Lake | Mono | 45,124 acres | - |
All 1,147 California 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 37352021). Verified October 30, 2026.