Lakes / California / Napa County / Lake Berryessa
Lake Berryessa, California
18,083 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
38.59 degrees N, 122.23 degrees W - Napa 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 Berryessa Stacks Up
- Ranks #10 for surface area among the California lakes counted so far - 18,083 acres.
- The largest lake in Napa County among those counted.
- About 40 miles from Sacramento, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Moskowitz Reservoir | Napa | 9.2 mi | 28 acres |
| Lake Hennessey | Napa | 10 mi | 763 acres |
| Weeks Lake | Napa | 11 mi | 124 acres |
| Rector Reservoir | Napa | 12 mi | 81 acres |
| Bell Canyon Reservoir | Napa | 14 mi | 74 acres |
| Milliken Reservoir | Napa | 14 mi | 41 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lake Berryessa
How Big Is Lake Berryessa?
Lake Berryessa covers 18,083 acres in Napa County, California.
What Is the Largest Lake in Napa County?
Lake Berryessa is the largest lake in Napa County, at 18,083 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 130951632). Verified October 30, 2026.