Small Southeast Counties See Population Surge from Movers

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According to new U.S. Census Bureau estimates, small counties in the coastal Southeast had some of the largest population gains between mid-2024 and mid-2025, mostly due to people moving from larger areas. Jasper County, South Carolina saw a 6% population increase, the fastest growth in the nation, as new residents moved in from states like New York, Ohio, and Pennsylvania. Other fast-growing counties were on the outskirts of major metro areas like Dallas, Atlanta, and Denver.

Why it matters

The population surges in these small Southeast counties highlight broader migration trends, as people seek more affordable housing, lower costs of living, and access to recreation and amenities outside of major urban centers. However, the rapid growth also presents challenges for local infrastructure and services.

The details

Jasper County, South Carolina saw a 6% population increase, making it the fastest-growing county in the nation. The county has seen an influx of new residents from states like New York, Ohio, and Pennsylvania, with some new housing developments aimed at retirees and workers at expanding local factories. Other fast-growing counties were on the outskirts of major metro areas, benefiting from people moving in from other counties. However, some of the largest numeric increases were in counties like Harris, Texas and Maricopa, Arizona, where immigration was the primary driver of growth, though that has slowed compared to previous years.

• Between mid-2024 and mid-2025, small counties in the coastal Southeast saw some of the largest population gains.
• Jasper County, South Carolina grew 6% in the year to mid-2025, up from 6.9% the previous year.
• Immigration-driven growth has slowed in some of the largest counties compared to previous years.

What they’re saying