Arlington County, Alexandria City

Arlington County is a county containing about 210,000 residents in the Commonwealth of Virginia. It is located directly across the Potomac River from Washington, D.C., and the two of them are linked by several highway and railroad bridges, and a tunnel beneath the river. A major airport of Washington, D.C., Ronald Reagan Washington National Airport, many Federal Government offices, including those of the Department of Defense and the Department of the Navy, and Arlington National Cemetery are located in Arlington County.

The county was originally founded as Alexandria County on February 27, 1801 by passage of the District of Columbia Organic Act of 1801. Alexandria County along with the now-defunct Washington County were the two counties formed on that date within the District of Columbia. Due to issues involving congressional representation, abolition and economic decline, the county along with the then-Town of Alexandria were returned to the Commonwealth of Virginia in an act of the U.S. Congress which took effect in 1847. In 1920 the General Assembly of Virginia changed the name of the county to “Arlington County” in order to avoid confusion with Alexandria, which had become an independent city in 1870.

Arlington County is organized legally as one of the counties of Virginia. For purely statistical considerations, it is included with the nearby cities and counties as a city of the Washington Metropolitan Area by the U.S. Census Bureau. With a land area of 26 square miles (67 km2), Arlington County is geographically the smallest self-governing county in the United States.

In 2005, Arlington was ranked first among walkable cities in the United States by the American Podiatric Medical Association. CNN Money ranked Arlington as the most educated city in 2006 with 35.7% of residents having held graduate degrees. Along with five other counties in Northern Virginia, Arlington ranked among the twenty American counties with the highest median household income in 2006. In October 2008, BusinessWeek ranked Arlington as the safest city in which to weather a recession, with a 49.4% share of jobs in “strong industries”.In July 2009, CNN Money ranked Arlington second in the country in its listing of “Best Places for the Rich and Single.”In June 2010, Parenting magazine named Arlington as the “Best City for Families” in the country.

Arlington is the location of the Arlington National Cemetery, the Washington National Airport, The Pentagon (of the U.S. Department of Defense), Fort Myer (of the U.S. Army), the Pentagon Memorial, the U.S. Marine Corps Memorial, and the U.S. Air Force Memorial.

Fairfax County

Fairfax County is a county in Northern Virginia, in the United States. As of April 2009, the estimated population of the county is 1,037,605  making it by far the most populous jurisdiction in the Commonwealth of Virginia, with 13.1% of Virginia’s population, and the most populous jurisdiction in the Washington Metropolitan Area.

Fairfax was the first county in the United States to reach a six-figure median household income, and has the second-highest median household income of any county with a population of 250,000 or more in the United States after neighboring Loudoun County.

The county is home to the headquarters of intelligence agencies such as the Central Intelligence Agency, National Geospatial-Intelligence Agency, and National Reconnaissance Office, as well as the National Counterterrorism Center and Office of the Director of National Intelligence. The county is also home to half of the metropolitan area’s Fortune 500 companies.

Loudoun County

Loudoun County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. As of July 1, 2009, the county is estimated to be home to 301,171 people, a 78 percent increase over the 2000 figure of 169,599. That increase makes the county the fourth fastest-growing in the United States during that period. Its county seat is Leesburg. As of 2007, the town had been county seat for 249 of the last 250 years.

As of 2007, Loudoun County has the highest median household income of any county in the United States ($107,207), beating neighboring Fairfax County, Virginia ($105,241).The two counties have been trading places as the highest-income county in the United States in recent years.

Prince William County

Prince William County is a county located in the Commonwealth of Virginia, and is part of the Washington Metropolitan Area. The estimated population in 2009 of the county was 394,370. Its county seat is the independent city of Manassas[1]. It is part of Northern Virginia and is one of the highest-income counties in the United States.

Map Northern VA Counties

information source:http://en.wikipedia.org

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