Market insights · South Carolina
Dorchester County, SC: growth, migration and housing
Dorchester County has 178,397 residents, up 10.1% since 2020 (+2.0% in the last year). In 2022–2023, 8,341 households moved in and 6,903 moved out (+1,438 net), bringing in a net $135.4M of income. Median household income is $78,198, the median home $329,300 and median rent $1,463 a month.
In South Carolina: 9th of 46 counties for 5-year population growth · 9th of 46 counties for net in-migration (per resident) · 6th of 46 counties for median household income · 5th of 46 counties for median home value.
Where new residents came from
Top counties by households (tax returns) moving to Dorchester County, 2022–2023 (IRS).
| From | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Charleston County, SC | 2,283 | $121.8M |
| Berkeley County, SC | 1,718 | $107.6M |
| Colleton County, SC | 143 | $6.4M |
| Orangeburg County, SC | 125 | $5.7M |
| Richland County, SC | 100 | $5.4M |
| Greenville County, SC | 78 | $6.0M |
| Horry County, SC | 70 | $3.7M |
| Lexington County, SC | 62 | $3.3M |
Where leavers went
Top counties by households leaving Dorchester County, 2022–2023 (IRS).
| To | Households (tax returns) | Their income (AGI) |
|---|---|---|
| Berkeley County, SC | 1,905 | $112.0M |
| Charleston County, SC | 1,530 | $73.7M |
| Colleton County, SC | 161 | $8.4M |
| Orangeburg County, SC | 149 | $6.5M |
| Richland County, SC | 126 | $5.8M |
| Greenville County, SC | 94 | $6.3M |
| Lexington County, SC | 91 | $5.9M |
| Mecklenburg County, NC | 73 | $4.2M |
BizyFi in Dorchester County
Fewer than 3 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.
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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.