Arlington County Real Estate Market Data
Due to Arlington county's proximity to Washington, D.C., Arlington is headquarters to many departments and agencies of the federal government of the United States, including the Department of Defense, the United States Drug Enforcement Administration, and the Defense Advanced Research Projects Agency (DARPA). The many federal agencies, government contractors, and service industries contribute to Arlington's stable economy, which has made it one of the highest-income counties in the United States. Arlington is also the location of national memorials and museums, including Arlington National Cemetery, the Pentagon Memorial, the Marine Corps War Memorial, and the United States Air Force Memorial.
Arlington has consistently had the lowest unemployment rate of any jurisdiction in Virginia. - information provided by wikipedia.org