Boundary Atlas

ZIP code 29455: Charleston, SC

ZIP code 29455 is in Charleston (43% of residents), Seabrook Island (7.2%) and Kiawah Island (7.1%), in Charleston County, South Carolina. 42% of its residents live outside city limits. It is in South Carolina's 1st congressional district (95%) and South Carolina's 6th congressional district (4.6%). Its state senate districts are State Senate District 41 (71%), State Senate District 43 (15%), State Senate District 45 (14%) and State Senate District 20 (0.4%); its state house districts are State House District 115 (46%), State House District 119 (29%) and State House District 116 (25%).

28,344residents (2020 Census)
100.2 sq miland area
4cities and towns
2congressional districts
10voting precincts

See it on the mapAll of South Carolina

City and county

City or townShare of ZIP residents
Charleston43%
Seabrook Island7.2%
Kiawah Island7.1%
Hollywood<0.1%

CountyShare of ZIP residents
Charleston County100%

Town or county subdivisionShare of ZIP residents
Johns Island CCD81%
Kiawah Island-Seabrook Island CCD15%
West Ashley CCD4.6%

Congressional districts

Congressional districtShare of ZIP residents
South Carolina's 1st congressional district (SC-01)95%
South Carolina's 6th congressional district (SC-06)4.6%

This ZIP is split between districts. A mailing address in it could be in either; the map or locate_point gives the district for an exact address.

Elected officials

OfficeMemberContactShare of residents
MayorWilliam S. Cogswell Jr.43%
U.S. Representative (SC-01)Nancy Mace (R)202-225-317695%
U.S. Representative (SC-06)James E. Clyburn (D)202-225-33154.6%
U.S. SenatorDarline Graham (R)202-224-5972statewide
U.S. SenatorTim Scott (R)202-224-6121 · contact formstatewide
State Senator (State Senate District 41)Matt Leber (R)71%
State Senator (State Senate District 43)Chip Campsen (R)15%
State Senator (State Senate District 45)Margie Bright Matthews (Democratic)14%
State Senator (State Senate District 20)Ed Sutton (Democratic)0.4%
State Representative (State House District 115)Spencer Wetmore (Democratic)46%
State Representative (State House District 119)Leon Stavrinakis (Democratic)29%
State Representative (State House District 116)James Teeple (R)25%

From Wikidata (community-maintained); confirm on the city's website.

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); Mayors: Wikidata (CC0).

Local government

State legislative districts

State senate districtShare of ZIP residents
State Senate District 4171%
State Senate District 4315%
State Senate District 4514%
State Senate District 200.4%

State house districtShare of ZIP residents
State House District 11546%
State House District 11929%
State House District 11625%

Voting precincts

10 voting precincts overlap ZIP 29455. 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:29455")

ZIP 29455 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.