Lakes / California / Riverside County / Diamond Valley Lake
Diamond Valley Lake, California
4,918 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - California
33.68 degrees N, 117.03 degrees W - Riverside 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 Diamond Valley Lake Stacks Up
- Larger than 97% of the 1,147 lakes counted in California.
- The largest lake in Riverside County among those counted.
- About 67 miles from San Diego, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Skinner Reservoir | Riverside | 6.5 mi | 1,038 acres |
| Ski Land Lake | Riverside | 11 mi | 50 acres |
| Ski Land Lake | Riverside | 11 mi | 38 acres |
| Vail Lake | Riverside | 14 mi | 470 acres |
| Perris Reservoir | Riverside | 15 mi | 2,233 acres |
| Lake Riverside | Riverside | 17 mi | 59 acres |
Straight-line distance between lake centers.
Facts and Figures
Waterbody ID{F59B8AA6-BB18-4A8A-8F9B-A66A743439B8}
CountyRiverside
Lake TypeLake
Coordinates33.6802, -117.0291
Questions About Diamond Valley Lake
How Big Is Diamond Valley Lake?
Diamond Valley Lake covers 4,918 acres in Riverside County, California.
What Is the Largest Lake in Riverside County?
Diamond Valley Lake is the largest lake in Riverside County, at 4,918 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 {F59B8AA6-BB18-4A8A-8F9B-A66A743439B8}). Verified October 30, 2026.