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.

San Bernardino County, California
San Bernardino County, California
Population: 1,999,332

Increase (July 2005 - July 2006): 34,821

The largest county in terms of area in the United States, San Bernardino encompasses more acreage than the states of Massachusetts, Connecticut, Delaware and Rhode Island combined!

Like its next-door neighbor to the south, Riverside County, the western reaches of San Bernardino County have become bedroom communities for many workers from Los Angeles seeking affordable housing.

Much of the county is still undeveloped and boasts wide areas of mountain and desert wilderness. That includes Death Valley National Park.

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
Best Places to Live Money Magazine's annual choices for the top towns in the United States. (more)
Best Places to Retire Money Magazine's top spots to spend your golden years. (more)

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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer.

Morningstar: © 2014 Morningstar, Inc. All Rights Reserved.

Factset: FactSet Research Systems Inc. 2014. All rights reserved.

Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved.

Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor’s Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2014 and/or its affiliates.