Zip Code 29920 — Saint Helena Island, SC
29920 is a ZIP Code associated with Saint Helena Island, SC, located within Beaufort. 29920 ranks #8 out of 14 ZIP codes in Beaufort County by population (and #162 out of 424 in SC). The area supports an estimated population of 10,606 residents across Data Pending housing units, with a population density of 42.0 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (32.364410, -80.549460)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 29920 |
| Primary City | Saint Helena Island |
| State / Province | SC |
| County | Beaufort |
| Total Population | 10,606 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 42.0 people/sq mi |
| Timezone | America/New_York |
How 29920 Compares
| Metric | ZIP 29920 | Beaufort County | SC State Average |
|---|
| Population | 10,606 | 197,099 (Total) | 5,296,225 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 42.0 /sq mi | -- | -- |
| County Pop Rank | #8 of 14 | -- | -- |
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 →