| ZIP Codes: | 20 ZIP Codes (12 Standard, 8 PO Box, 0 Unique) [See All] |
| Area Codes: | 843 / 854 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:38 PM |
| Population: | 197,099 [See All] |
| FIPS: | 45013 |
| CBSA: | Hilton Head Island-Bluffton-Port Royal, SC |
| Land Area: | 613 sq mi |
| Water Area: | 176 sq mi |
| Coordinates: | 32.3714, -80.7402 |
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197,099 residents live across 20 ZIPs covering 613 sq mi, served by 12 distinct USPS-recognized cities.
Population moved from 167,474 to 197,099 from 2014 to 2024 — a +17.7% change. 8 ZIPs gained residents, 6 lost.
The county's wealthiest ZIP 29910 (Bluffton, $98,912 median) and poorest ZIP 29940 (Seabrook, $54,177) are 24.7 miles apart — a 1.8× income gap across local geography.
Median home values vary 4.6× across this county — from $172,100 in 29940 (Seabrook) to $797,700 in 29928 (Hilton Head Island).
Density varies 1789× across the county — from 37 people/sq mi in 29940 (Seabrook) to 66,500 in 29905 (Parris Island).
Educational attainment ranges from 20.1% bachelor's+ in 29940 (Seabrook) to 63.9% in 29928 (Hilton Head Island) — the breadth of educational profiles across the area.
Within South Carolina, this is the #9 most populous of 46 counties and ranks #2 for median household income with the #7 fastest decade growth .
Weighted by population, the typical household earns about $88,849 across the county — reflecting what a typical resident sees, not a simple ZIP average.
46.4% of adults age 25+ hold a bachelor's degree or higher (66,967 of 144,257 reporting). The most-educated ZIPs cluster around Hilton Head Island.
12 Standard delivery, 8 PO Box only, 0 single-entity Unique ZIPs serve this county.
1 ZIP in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
Beaufort County grew 17.7% over the past decade — concentrated in 2 high-growth ZIPs:
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 29910 | Bluffton | Standard | 53,019 | $98,912 | 130.3 | 48.4% |
| 29906 | Beaufort | Standard | 25,342 | $68,174 | 65.0 | 16.3% |
| 29926 | Hilton Head Island | Standard | 24,458 | $97,948 | 27.4 | -2.9% |
| 29909 | Okatie | Standard | 24,003 | $91,294 | 56.2 | 31.1% |
| 29902 | Beaufort | Standard | 17,650 | $69,752 | 29.9 | 14.9% |
| 29928 | Hilton Head Island | Standard | 15,785 | $97,576 | 22.2 | -2.6% |
| 29907 | Beaufort | Standard | 15,190 | $97,446 | 50.0 | 23.0% |
| 29920 | Saint Helena Island | Standard | 10,606 | $77,744 | 116.3 | 7.5% |
| 29935 | Port Royal | Standard | 3,513 | $76,544 | 3.9 | 12.4% |
| 29940 | Seabrook | Standard | 3,256 | $54,177 | 87.6 | -28.3% |
| 29905 | Parris Island | PO Box | 1,729 | — | 0.0 | -51.9% |
| 29904 | Beaufort | PO Box | 1,600 | — | 1.5 | 508.4% |
| 29915 | Daufuskie Island | Standard | 619 | $156,090 | 12.5 | -4.5% |
| 29941 | Sheldon | Standard | 329 | $119,886 | 10.4 | -35.9% |
| 29938 | Hilton Head Island | PO Box | — | — | 0.0 | — |
| 29925 | Hilton Head Island | PO Box | — | — | 0.0 | — |
| 29914 | Dale | PO Box | — | — | 0.0 | — |
| 29931 | Lobeco | PO Box | — | — | 0.0 | — |
| 29901 | Beaufort | PO Box | — | — | 0.0 | — |
| 29903 | Beaufort | PO Box | — | — | 0.0 | — |