San Francisco County, California Demographics

• + 110.3%

  Kendall County, Illinois

• + 109.1%

  Pinal County, Arizona

• + 92.0%

  Flagler County, Florida

• + 85.6%

  Lincoln County, South Dakota

• + 84.1%

  Loudoun County, Virginia

* County population gainers from 2000 to 2009

Min. 10,000 (Source: U.S. Census)

• -46.6%

  St. Bernard County, Louisiana

• -29.1%

  Orleans County, Louisiana

• -24.3%

  Chattahoochee County, Georgia

• -19.1%

  McDowell County, West Virginia

• -18.8%

  Washington County, Mississippi

* Top population losers from 2000 to 2009, Min. 10,000 (Source: U.S. Census)