Lakes / California / Sonoma County / Merlo Lake
Merlo Lake, California
44 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
38.69 degrees N, 122.99 degrees W - Sonoma 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 Merlo Lake Stacks Up
- Larger than 27% of the 1,147 lakes counted in California.
- About 71 miles from San Francisco, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Sonoma | Sonoma | 4.2 mi | 2,235 acres |
| Lytton Lake | Sonoma | 7.1 mi | 29 acres |
| Boggs Lake | Lake | 18 mi | 34 acres |
| Highland Springs Reservoir | Lake | 18 mi | 50 acres |
| Thurston Lake | Lake | 24 mi | 210 acres |
| Hidden Valley Lake | Lake | 25 mi | 98 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Merlo Lake
How Big Is Merlo Lake?
Merlo Lake covers 44 acres in Sonoma County, California.
What Is the Largest Lake in Sonoma County?
Lake Sonoma is the largest lake in Sonoma County, at 2,235 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 109399109). Verified October 30, 2026.