Market insights · South Carolina
Charleston County, SC: growth, migration and housing
Charleston County has 436,200 residents, up 6.4% since 2020 (+0.7% in the last year). In 2022–2023, 17,531 households moved in and 15,608 moved out (+1,923 net), bringing in a net $631.7M of income. Median household income is $88,494, the median home $489,100 and median rent $1,620 a month.
In South Carolina: 16th of 46 counties for 5-year population growth · 19th of 46 counties for net in-migration (per resident) · 2nd of 46 counties for median household income · 1st of 46 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Charleston County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Berkeley County, SC | 2,388 | $169.5M |
| Dorchester County, SC | 1,530 | $73.7M |
| Mecklenburg County, NC | 367 | $123.5M |
| Richland County, SC | 312 | $21.4M |
| Greenville County, SC | 296 | $22.1M |
| Beaufort County, SC | 245 | $22.2M |
| Horry County, SC | 223 | $15.3M |
| Lexington County, SC | 199 | $14.1M |
Where leavers went
Top counties by households leaving Charleston County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Berkeley County, SC | 3,268 | $224.2M |
| Dorchester County, SC | 2,283 | $121.8M |
| Greenville County, SC | 347 | $26.4M |
| Mecklenburg County, NC | 287 | $44.0M |
| Richland County, SC | 287 | $17.4M |
| Beaufort County, SC | 183 | $22.4M |
| Horry County, SC | 169 | $9.1M |
| Colleton County, SC | 154 | $11.1M |
BizyFi in Charleston County
23 companies in the BizyFi directory are based here. Search them on the company map (company names with a free account), or browse South Carolina companies.
← All South Carolina counties · National rankings
Sources: U.S. Census Bureau population estimates (vintage 2025), American Community Survey 5-year (2024), and IRS Statistics of Income county-to-county migration data (2022–2023). Migration counts are tax returns (roughly households) moving between U.S. counties; the IRS suppresses very small flows. Growth rates, per-1,000 figures, rent share and state ranks are BizyFi calculations. Data updated 2026-10-17. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.