Boundary Atlas

ZIP code 29451: Isle of Palms, SC

ZIP code 29451 is in Isle of Palms (98% of residents), in Charleston County, South Carolina. It is in South Carolina's 1st congressional district. Its state senate district is State Senate District 43; its state house district is State House District 112.

4,417residents (2020 Census)
9.1 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
Isle of Palms98%

CountyShare of ZIP residents
Charleston County100%

Town or county subdivisionShare of ZIP residents
Mount Pleasant CCD100%

Congressional district

Congressional districtShare of ZIP residents
South Carolina's 1st congressional district (SC-01)100%

State legislative districts

State senate districtShare of ZIP residents
State Senate District 43100%

State house districtShare of ZIP residents
State House District 112100%

Voting precincts

4 voting precincts overlap ZIP 29451. Map them, with each precinct's share of the ZIP's residents.

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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:29451")

ZIP 29451 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.