Buying Land in McCormick County, South Carolina

A small county defined by a lake and a national forest

McCormick County is consistently reported as South Carolina's least-populous county, and its land character reflects that: this is a genuinely rural, low-density Piedmont county rather than a growth corridor. Its western boundary runs along the Savannah River and Strom Thurmond Lake -- a roughly 71,100-acre reservoir built by the U.S. Army Corps of Engineers between 1946 and 1954 and filled in 1951-52, shared with Georgia and known locally under its older name, Clarks Hill Lake, before Congress renamed it for the late U.S. Senator. It's one of the Southeast's larger and more popular public recreation lakes, and lakefront and near-lakefront land in McCormick County draws buyers specifically for that reason.

Most of the rest of the county's land area sits within the southern section of Sumter National Forest, which mixes swampy river-bottom hardwood tracts with hilly, pine-topped terrain typical of the upper Savannah River basin. A private inholding or a parcel that borders national forest land should be checked carefully against U.S. Forest Service boundary maps -- adjoining federal land can affect everything from hunting-lease arrangements to how a private road easement is structured, and boundary surveys near national forest edges are worth budgeting for specifically.

Zoning: a 2023 rewrite means this county does regulate land use

Unlike some of South Carolina's rural counties, which have adopted no countywide zoning at all under the state's optional Title 6, Chapter 29 framework, McCormick County comprehensively rewrote its Zoning Ordinance and Subdivision Regulations via Ordinance No. 23-02, enacted June 20, 2023. That ordinance covers zoning districts, lot and building standards, accessory and temporary use rules, planned-development and mixed-use districts, and even an airport-environs overlay district -- a fairly complete modern land-use code for a small county. Because the rewrite is recent, don't rely on an older description of McCormick County zoning (including a listing's own characterization); pull the current district and use table for a specific parcel directly from the county's Planning and Zoning office.

The county's Planning Commission reviews and recommends changes to the ordinance and designates zoning districts, so a rezoning request or a variance follows the standard planning-commission-then-council process common across South Carolina's zoned counties. If your plan involves subdividing a larger tract -- reasonably common here given the county's lake-adjacent and forest-adjacent land base -- confirm the current subdivision-regulation requirements under the same 2023 ordinance before finalizing a lot layout.

That process is being tested directly in 2026: a proposed roughly 1,000-acre data center and natural-gas pipeline near downtown McCormick drew hundreds of residents to public meetings and led the Planning Commission to recommend a moratorium, deny a related rezoning request, and draft a new data-center ordinance. See our dedicated Zoning in McCormick County page for the full, current status of that dispute -- it's a live example of exactly how a large, contested rezoning plays out under this county's process.

Septic and lake-shoreline considerations

Septic permitting in McCormick County follows the statewide South Carolina pattern: Regulation 61-56 is a state technical standard, and the actual permit is issued by SCDES through its own regional office network rather than a county health department. McCormick County is covered by the SCDES Environmental Affairs office based in Greenwood, which also serves Abbeville and Greenwood counties -- confirm current site-evaluation procedures and soil suitability with that office before counting on any specific lot, lake-adjacent or inland, as buildable.

For any parcel near Strom Thurmond Lake specifically, remember that the U.S. Army Corps of Engineers manages shoreline use around its reservoirs under its own shoreline-management rules -- separate from, and in addition to, McCormick County zoning and SCDES septic permitting. Dock permits, vegetation clearing near the shoreline, and any construction below a defined elevation typically route through the Corps' Thurmond Lake project office, not the county. Layering these three checks -- county zoning, SCDES septic, and (where relevant) Corps shoreline rules -- is the practical due-diligence sequence for a McCormick County parcel.