Zip Code 29821 — Clarks Hill, SC
29821 is a ZIP Code associated with Clarks Hill, SC, located within Edgefield. 29821 ranks #5 out of 6 ZIP codes in Edgefield County by population (and #348 out of 424 in SC). The area supports an estimated population of 1,141 residents across Data Pending housing units, with a population density of 8.0 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (33.642420, -82.116670)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 29821 |
| Primary City | Clarks Hill |
| State / Province | SC |
| County | Edgefield |
| Total Population | 1,141 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 8.0 people/sq mi |
| Timezone | America/New_York |
How 29821 Compares
| Metric | ZIP 29821 | Edgefield County | SC State Average |
|---|
| Population | 1,141 | 38,589 (Total) | 5,296,225 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 8.0 /sq mi | -- | -- |
| County Pop Rank | #5 of 6 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →