Bristol is an independent city in the Commonwealth of Virginia. As of the 2010 census, the population was 17,835. It is the twin city of Bristol, Tennessee, just across the state line, which runs down the middle of its main street, State Street. The Bureau of Economic Analysis combines the city of Bristol, Virginia, with neighboring Washington County, Virginia, for statistical purposes. Bristol is a principal city of the Kingsport?Bristol?Bristol, TN-VA Metropolitan Statistical Area, which is a component of the Johnson City?Kingsport?Bristol, TN-VA Combined Statistical Area ? commonly known as the "Tri-Cities" region.