Lakes / South Carolina / Sumter County / Lake Marion
Lake Marion, Sumter County, South Carolina
117 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Carolina
33.70 degrees N, 80.58 degrees W - Sumter 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 Marion Stacks Up
- Larger than 81% of the 276 lakes counted in South Carolina.
- The largest lake in Sumter County among those counted.
- About 33 miles from Columbia, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Marion | Sumter | 2.0 mi | 37 acres |
| Shay Hane Cabin Pond | Calhoun | 5.0 mi | 29 acres |
| Elliott Millpond | Clarendon | 6.1 mi | 40 acres |
| Fox Tindal Pond | Clarendon | 8.5 mi | 30 acres |
| Elliott Lake | Sumter | 11 mi | 42 acres |
| Smoke Pond | Calhoun | 11 mi | 36 acres |
Straight-line distance between lake centers.
Facts and Figures
Waterbody ID{33D73657-DFAE-4B82-BD80-111BD593C524}
CountySumter
Lake TypeLake
Coordinates33.7039, -80.5798
Questions About Lake Marion
How Big Is Lake Marion?
Lake Marion covers 117 acres in Sumter County, South Carolina.
What Is the Largest Lake in Sumter County?
Lake Marion is the largest lake in Sumter County, at 117 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 {33D73657-DFAE-4B82-BD80-111BD593C524}). Verified October 30, 2026.