ZIP code 29812: Barnwell, SC
ZIP code 29812 is in Barnwell (42% of residents), Hilda (3.5%), Snelling (2.2%) and Kline (1.3%), in Barnwell County (100%) and Allendale County (0.2%), South Carolina. 51% of its residents live outside city limits. It is in South Carolina's 2nd congressional district (100%) and South Carolina's 6th congressional district (0.2%). Its state senate district is State Senate District 40; its state house district is State House District 91.
See it on the mapAll of South Carolina
City and county
| City or town | Share of ZIP residents |
|---|---|
| Barnwell | 42% |
| Hilda | 3.5% |
| Snelling | 2.2% |
| Kline | 1.3% |
| County | Share of ZIP residents |
|---|---|
| Barnwell County | 100% |
| Allendale County | 0.2% |
| Town or county subdivision | Share of ZIP residents |
|---|---|
| Barnwell CCD | 69% |
| Kline-Snelling CCD | 31% |
| Williston CCD | 0.5% |
| Allendale CCD | 0.2% |
Congressional districts
| Congressional district | Share of ZIP residents |
|---|---|
| South Carolina's 2nd congressional district (SC-02) | 100% |
| South Carolina's 6th congressional district (SC-06) | 0.2% |
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
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (SC-02) | Joe Wilson (R) | 202-225-2452 | 100% |
| U.S. Representative (SC-06) | James E. Clyburn (D) | 202-225-3315 | 0.2% |
| U.S. Senator | Darline Graham (R) | 202-224-5972 | statewide |
| U.S. Senator | Tim Scott (R) | 202-224-6121 · contact form | statewide |
| State Senator (State Senate District 40) | Brad Hutto (Democratic) | 100% | |
| State Representative (State House District 91) | Lonnie Hosey (Democratic) | 100% |
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
- Barnwell website: http://www.cityofbarnwell.com/
- Barnwell laws: search for the Barnwell, South Carolina code of ordinances
- Hilda laws: search for the Hilda, South Carolina code of ordinances
- Snelling laws: search for the Snelling, South Carolina code of ordinances
- Barnwell County laws: search for the Barnwell County, South Carolina code of ordinances
- Allendale County website: http://www.allendalecounty.com
- Allendale County laws: search for the Allendale County, South Carolina code of ordinances
State legislative districts
| State senate district | Share of ZIP residents |
|---|---|
| State Senate District 40 | 100% |
| State house district | Share of ZIP residents |
|---|---|
| State House District 91 | 100% |
Voting precincts
10 voting precincts overlap ZIP 29812. 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:29812")
ZIP 29812 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.