County ProfileSC
Charleston County
Population: 408,235 · 37 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
408,235
People
Median age
39.2
Housing
Total households
178,975
Income
Median household income
$88,494
Housing
Total housing units
209,803
Employment
Employment rate
62.8%
Education
Bachelor’s degree or higher
50.3%
Healthcare
Insured population
91.7%
County details
Local time 02:24:01(ET)| Name | Charleston |
|---|---|
| Total ZIP codes | 37total |
| ZIP codes (by type) | 23 Standard11 PO Box3 Unique |
| Area code | 843, 854 |
| Timezone | Eastern Time (ET) |
| Coordinates | 32.8004582, -79.94248 |
| Land area | 918.1 sq miles(2,378 km²) |
Map of Charleston county, South Carolina with ZIP codes
Cities and Communities in Charleston County
Compare the largest cities in Charleston County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Charleston | 150,227 | $92,414 | 16ZIPs |
| North Charleston | 114,852 | $62,956 | 5ZIPs |
| Mount Pleasant | 90,801 | $124,755 | 3ZIPs |
| Johns Island | 28,344 | — | 2ZIPs |
| Hollywood | 5,339 | $73,693 | 1ZIPs |
| Isle of Palms | 4,347 | $156,979 | 1ZIPs |
| Edisto Island | 3,137 | — | 1ZIPs |
| Wadmalaw Island | 2,848 | — | 1ZIPs |
| Ravenel | 2,542 | $82,738 | 1ZIPs |
| Mc Clellanville | 2,489 | — | 1ZIPs |
| Charleston AFB | 2,161 | — | 1ZIPs |
| Folly Beach | 2,078 | $102,279 | 1ZIPs |
| Sullivans Island | 1,891 | — | 1ZIPs |
| Awendaw | 1,399 | $77,010 | 1ZIPs |
| Adams Run | 421 | $79,107 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Charleston County
Review the most populated postal areas across Charleston County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 29464 | Mount Pleasant | $111,907 | 51,287 |
| 29414 | Charleston | $99,529 | 45,150 |
| 29466 | Mount Pleasant | $133,357 | 42,316 |
| 29412 | Charleston | $101,509 | 39,687 |
| 29407 | Charleston | $85,367 | 35,373 |
| 29406 | Charleston | $49,815 | 32,730 |
| 29455 | Johns Island | $121,372 | 28,344 |
| 29405 | North Charleston | $56,600 | 25,620 |
| 29418 | North Charleston | $64,583 | 24,154 |
| 29420 | North Charleston | $72,661 | 23,619 |
| 29403 | Charleston | $66,944 | 21,363 |
| 29492 | Charleston | $110,509 | 19,619 |
| 29401 | Charleston | $99,667 | 9,145 |
| 29449 | Hollywood | $56,929 | 8,018 |
| 29470 | Ravenel | $86,410 | 4,598 |
| 29451 | Isle of Palms | $156,979 | 4,417 |
| 29429 | Awendaw | $112,244 | 3,899 |
| 29438 | Edisto Island | $86,979 | 3,137 |
| 29487 | Wadmalaw Island | $105,592 | 2,848 |
| 29458 | Mc Clellanville | $86,431 | 2,489 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS