County facts · Population growth · October 23, 2026
Fastest Growing Counties in South Carolina, 2020 to 2025
South Carolina's fastest growing counties by percent and by people added, April 2020 to July 2025 Census estimates, with each official parcel map.
Looking for the fastest growing counties in South Carolina? From the Census Bureau's April 1, 2020 estimates base to its July 1, 2025 estimate, South Carolina went from about 5,118,250 to 5,570,274 residents, a change of +452,024 (+8.8%). The fastest growing county by percentage was Jasper County (+33.7%), while Horry County added the most people (+76,515, +21.8%).
Every row below links to the county's Platbookmapper page and straight to its official parcel viewer, handy if growth is why you are looking at land there.
South Carolina growth at a glance
- County: 46
- Statewide, April 2020 to July 2025: +452,024 residents (+8.8%); July 2024 to July 2025 alone: +79,958 (+1.5%)
- Grew: 32 of 46 · Lost residents: 14
- Fastest growing by percent: Jasper County (+33.7%); most people added: Horry County (+76,515)
- Counties with more deaths than births over the period: 36 of 46
The 10 fastest growing South Carolina counties by percent
| # | County | Apr 2020 | Jul 2025 | Change | % change | Parcel viewer |
|---|---|---|---|---|---|---|
| 1 | Jasper County | 28,811 | 38,533 | +9,722 | +33.7% | Beacon (Schneider Geospatial) |
| 2 | Horry County | 351,036 | 427,551 | +76,515 | +21.8% | county web map |
| 3 | Berkeley County | 229,779 | 274,666 | +44,887 | +19.5% | ArcGIS Experience Builder |
| 4 | Lancaster County | 96,012 | 114,296 | +18,284 | +19.0% | Beacon (Schneider Geospatial) |
| 5 | Edgefield County | 25,649 | 29,808 | +4,159 | +16.2% | qPublic (Schneider Geospatial) |
| 6 | Spartanburg County | 328,000 | 380,857 | +52,857 | +16.1% | ArcGIS Web AppBuilder |
| 7 | Kershaw County | 65,407 | 73,166 | +7,759 | +11.9% | Beacon (Schneider Geospatial) |
| 8 | Greenville County | 525,549 | 583,125 | +57,576 | +11.0% | county web map |
| 9 | Dorchester County | 161,330 | 178,397 | +17,067 | +10.6% | ArcGIS Web AppBuilder |
| 10 | Beaufort County | 187,093 | 204,433 | +17,340 | +9.3% | ArcGIS Experience Builder |
These 10 added about 306,166 people combined. The median county changed by +3.9%.
The 10 counties that added the most people
| # | County | People added | % change | Jul 2025 | Parcel viewer |
|---|---|---|---|---|---|
| 1 | Horry County | +76,515 | +21.8% | 427,551 | county web map |
| 2 | Greenville County | +57,576 | +11.0% | 583,125 | county web map |
| 3 | Spartanburg County | +52,857 | +16.1% | 380,857 | ArcGIS Web AppBuilder |
| 4 | Berkeley County | +44,887 | +19.5% | 274,666 | ArcGIS Experience Builder |
| 5 | Charleston County | +27,678 | +6.8% | 436,200 | county web map |
| 6 | York County | +24,980 | +8.9% | 306,887 | ArcGIS Experience Builder |
| 7 | Lexington County | +23,669 | +8.1% | 317,588 | county web map |
| 8 | Richland County | +18,825 | +4.5% | 434,956 | county web map |
| 9 | Lancaster County | +18,284 | +19.0% | 114,296 | Beacon (Schneider Geospatial) |
| 10 | Beaufort County | +17,340 | +9.3% | 204,433 | ArcGIS Experience Builder |
The top 10 account for about 79% of all the gains in the counties that grew.
Where the new residents came from
The Census Bureau splits each change into natural change (births minus deaths), net domestic migration (moves from other parts of the US) and net international migration. Totals for April 2020 to July 2025 in the five fastest growing counties:
| County | Births minus deaths | Net domestic moves | Net international moves | Total change |
|---|---|---|---|---|
| Jasper County | +56 | +8,183 | +1,414 | +9,722 |
| Horry County | −9,638 | +78,431 | +7,041 | +76,515 |
| Berkeley County | +4,981 | +33,852 | +5,660 | +44,887 |
| Lancaster County | +149 | +16,284 | +1,836 | +18,284 |
| Edgefield County | −565 | +4,169 | +482 | +4,159 |
In all 5, moves from elsewhere in the US were the biggest source of growth. The three parts do not add up exactly to the total because the Census Bureau also carries a small residual.
The last year alone: July 2024 to July 2025
- Jasper County: +6.0% (+2,195)
- Berkeley County: +3.3% (+8,674)
- Horry County: +3.2% (+13,244)
- Spartanburg County: +3.0% (+10,923)
- Lancaster County: +2.7% (+2,997)
5 of these 5 are also in the 2020–2025 top 10, so the growth is not a one-year blip.
Counties losing residents
14 of South Carolina's 46 counties had fewer residents in July 2025 than in April 2020. The steepest declines:
- Allendale County: −8.5% (−682, now about 7,355)
- Lee County: −4.9% (−803, now about 15,730)
- Marlboro County: −4.4% (−1,179, now about 25,488)
- Williamsburg County: −4.4% (−1,358, now about 29,662)
- Bamberg County: −3.9% (−515, now about 12,796)
What fast growth means on a parcel map
- New lots show up as plats first. When land is subdivided, the plat is recorded with the county and the parcel layer catches up on its own schedule, so a brand-new lot may not appear on the map for a while. Check the recorder's recent plats if a parcel looks missing.
- Parcel numbers change after splits. A tract that was one parcel last year can be several today. Search by owner name or address as well as by an old parcel number.
- City limits move. Growing cities annex land, which changes who handles zoning and permits even though the county still keeps the deed and the tax map.
- Percent is not the same as people. A small county can post a big percentage on a modest number of new residents, so read the people-added column too.
Related guides
- Largest counties in South Carolina
- South Carolina county GIS websites by viewer
- South Carolina plat maps
- South Carolina landowner maps for hunting
- Fastest growing counties in the US
- US counties losing population
More: All South Carolina counties on Platbookmapper
Sources
- U.S. Census Bureau, Population Estimates Program, county totals, Vintage 2025 (April 1, 2020 estimates base and July 1, 2020–2025 estimates, with components of change). Percent change is from the April 1, 2020 estimates base to the July 1, 2025 estimate.
- Platbookmapper county GIS directory (live data file behind our county pages, pulled October 23, 2026) for each official parcel viewer.