The boom areas of America

10 fastest-growing U.S. counties

According to the Census Bureau, these counties are adding more residents than any other.

Collin County, Texas
Collin County, Texas
Population: 698,851

Increase (July 2005 - July 2006): 37,925

Collin County is part of the Dallas-Fort Worth metro area and joins two other counties here among the 10 fastest-growing U.S. counties.

Collin is the wealthiest county in Texas, and many of its towns and neighborhoods are home to the corporate elite of the Dallas area.

Maricopa County, Arizona

Harris County, Texas

Riverside County, California

Clark County, Nevada

Tarrant County, Texas

Bexar County, Texas

Collin County, Texas

Dallas County, Texas

Wake County, North Carolina

San Bernardino County, California
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