Boundary Atlas

ZIP code 29821: Clarks Hill, SC

ZIP code 29821 is in Clarks Hill (21% of residents), in McCormick County (52%) and Edgefield County (48%), South Carolina. 79% of its residents live outside city limits. It is in South Carolina's 3rd congressional district. Its state senate district is State Senate District 25; its state house districts are State House District 12 (52%) and State House District 83 (48%).

1,368residents (2020 Census)
55.2 sq miland area
1cities and towns
1congressional district
4voting precincts

See it on the mapAll of South Carolina

City and county

City or townShare of ZIP residents
Clarks Hill21%

CountyShare of ZIP residents
McCormick County52%
Edgefield County48%

Town or county subdivisionShare of ZIP residents
Parksville CCD52%
Southeast Edgefield CCD41%
Edgefield CCD7.7%

Congressional district

Congressional districtShare of ZIP residents
South Carolina's 3rd congressional district (SC-03)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (SC-03)Sheri Biggs (R)202-225-5301100%
U.S. SenatorDarline Graham (R)202-224-5972statewide
U.S. SenatorTim Scott (R)202-224-6121 · contact formstatewide
State Senator (State Senate District 25)Shane Massey (R)100%
State Representative (State House District 12)Daniel Gibson (R)52%
State Representative (State House District 83)Bill Hixon (R)48%

Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 25100%

State house districtShare of ZIP residents
State House District 1252%
State House District 8348%

Voting precincts

4 voting precincts overlap ZIP 29821. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:29821")

ZIP 29821 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.