Lakes / California / Alameda County / Upper San Leandro Reservoir
Upper San Leandro Reservoir, California
705 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
37.78 degrees N, 122.11 degrees W - Alameda 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 Upper San Leandro Reservoir Stacks Up
- Larger than 86% of the 1,147 lakes counted in California.
- About 17 miles from San Francisco, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Chabot | Alameda | 3.8 mi | 292 acres |
| Lafayette Reservoir | Contra Costa | 7.0 mi | 105 acres |
| Lake Merritt | Alameda | 7.9 mi | 152 acres |
| Briones Reservoir | Contra Costa | 11 mi | 669 acres |
| San Pablo Reservoir | Contra Costa | 12 mi | 785 acres |
| Mallard Reservoir | Contra Costa | 17 mi | 203 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Upper San Leandro Reservoir
How Big Is Upper San Leandro Reservoir?
Upper San Leandro Reservoir covers 705 acres in Alameda County, California.
What Is the Largest Lake in Alameda County?
San Antonio Reservoir is the largest lake in Alameda County, at 770 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 120030660). Verified October 30, 2026.