Arlington County, Virginia addition to receiving the lowest proportion of Arlington's vote for a Democratic or Republican candidate in the past century. Arlington is part of Virginia's 8th congressional district, represented by Democrat Don Beyer. The United States Postal Service designates zip codes starting with "222" for exclusive use in Arlington County. However, federal institutions, like Ronald Reagan Washington National Airport and The Pentagon use Washington zip codes. Arlington has consistently had the lowest unemployment rate of any jurisdiction in Virginia. The unemployment rate in Arlington was 4.2% in August 2009. 60% of office space in the Rosslyn-Ballston corridor is leased to government
Streets and highways of Arlington County, Virginia Bridge (U.S. Route 29), the Theodore Roosevelt Bridge (Interstate 66/U.S. Route 50), the Arlington Memorial Bridge, and the 14th Street Bridge complex (Interstate 395/U.S. Route 1). Streets and highways of Arlington County, Virginia This article deals with the streets and highways of Arlington County, Virginia, a suburb of Washington, D.C. in the United States. In 2009, the county maintains of roads. , the total mileage of (primary) state highways in Arlington County was 39.66 (59 km). Arlington County is one of only two counties in Virginia which maintain its own roads (with the exception of primary state highways, including U.S.