Lakes / California / Alameda County
Lakes in Alameda County, California
7 lakes counted in Alameda County - the largest is San Antonio Reservoir at 770 acres.
7
Lakes Counted
770 acres
Largest - San Antonio Reservoir
Alameda County, highlighted, with its largest counted lakes dotted. Outlines from Census boundary data.
All Counted Lakes
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | San Antonio Reservoir | Alameda | 770 acres | - |
| 2 | Upper San Leandro Reservoir | Alameda | 705 acres | - |
| 3 | Lake del Valle | Alameda | 703 acres | - |
| 4 | Lake Chabot | Alameda | 292 acres | - |
| 5 | Bethany Reservoir | Alameda | 164 acres | - |
| 6 | Lake Merritt | Alameda | 152 acres | - |
| 7 | Lake Elizabeth | Alameda | 78 acres | - |
Sources: USGS National Hydrography Dataset lake data; USGS. Verified October 30, 2026.