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.

Bexar County, Texas
Bexar County, Texas
Population: 1,555,592

Increase (July 2005 - July 2006): 39,066

Most of the county's population resides within the borders of San Antonio, the seventh most populous city in the nation.

The diversified economy is anchored by financial services, defense, health care and tourism.

The county's number-one attraction, the Alamo, draws nearly 3 million tourists a year.

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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