County Population Data

Check out our picks for the fastest-growing counties or download the local market data for more than 1,500 U.S. Counties.

This article explores the 50 fastest-growing U.S. counties with less than 500,000 in population.

Tracking the number of residents moving into or out of a market can give you an idea of its growth potential. When new residents move into an area, they need housing and they ...

Maricopa County led all counties across the nation in population growth over the past 10 years with an increase of more than 761,000 new residents.