Lakes / South Carolina / Oconee County / Coneross Watershed 21 Reservoir
Coneross Watershed 21 Reservoir, South Carolina
31 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Carolina
34.70 degrees N, 83.01 degrees W - Oconee 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 Coneross Watershed 21 Reservoir Stacks Up
- Larger than 22% of the 276 lakes counted in South Carolina.
- About 37 miles from Greenville, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Coneross Creek Reservoir | Oconee | 5.8 mi | 61 acres |
| Lake Keowee | Oconee | 8.9 mi | 16,883 acres |
| Issaqueena Lake | Pickens | 9.0 mi | 106 acres |
| Beaverdam Watershed Four Lake | Oconee | 10 mi | 28 acres |
| Crystal Lake | Oconee | 11 mi | 51 acres |
| Lake Becky | Oconee | 12 mi | 68 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Coneross Watershed 21 Reservoir
How Big Is Coneross Watershed 21 Reservoir?
Coneross Watershed 21 Reservoir covers 31 acres in Oconee County, South Carolina.
What Is the Largest Lake in Oconee County?
Hartwell Lake is the largest lake in Oconee County, at 18,037 acres.
Largest Lakes in South Carolina
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Marion | Clarendon | 80,044 acres | - |
| 2 | Lake Moultrie | Berkeley | 56,828 acres | - |
| 3 | Lake Murray | Lexington | 48,761 acres | - |
| 4 | Hartwell Lake | Oconee | 18,037 acres | - |
| 5 | Lake Keowee | Oconee | 16,883 acres | - |
All 276 South Carolina 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 105914755). Verified October 30, 2026.