Lakes / California / Contra Costa County / San Pablo Reservoir
San Pablo Reservoir, California
785 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
37.93 degrees N, 122.24 degrees W - Contra Costa 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 San Pablo Reservoir Stacks Up
- Larger than 87% of the 1,147 lakes counted in California.
- About 14 miles from San Francisco, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Briones Reservoir | Contra Costa | 2.4 mi | 669 acres |
| Lafayette Reservoir | Contra Costa | 6.4 mi | 105 acres |
| Lake Merritt | Alameda | 8.6 mi | 152 acres |
| Upper San Leandro Reservoir | Alameda | 12 mi | 705 acres |
| Lake Herman | Solano | 12 mi | 96 acres |
| Mallard Reservoir | Contra Costa | 13 mi | 203 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About San Pablo Reservoir
How Big Is San Pablo Reservoir?
San Pablo Reservoir covers 785 acres in Contra Costa County, California.
What Is the Largest Lake in Contra Costa County?
Clifton Court Forebay is the largest lake in Contra Costa County, at 2,215 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 120026368). Verified October 30, 2026.