The Tri-Cities of Virginia (also known as the Tri-City area or the Appomatox Basin) is an area in the Greater Richmond Region which includes the three independent cities of Petersburg, Colonial Heights, and Hopewell and portions of the adjoining counties of Chesterfield, Dinwiddie, and Prince George in south-central Virginia. Other unincorporated communities located in the Tri-Cities area include Ettrick, Fort Lee, and City Point, the latter formerly a historic incorporated town which was annexed to become part of the City of Hopewell.
The Tri-Cities area is centered on the Appomattox River about 25 miles south of Richmond. The Appomattox has its confluence with the James River near historic City Point in Hopewell. The applicable Metropolitan Statistical Area for the Tri-Cities area is the Richmond, VA MSA, which includes Richmond and counties generally to the north of the Tri-Cities area. Economic diversity is typical of the entire Richmond-Petersburg region, and helps to insulate it from hardship due to economic fluctuation in particular sectors of the economy. The region's central location also allows it to benefit from growth in other regions of Virginia and the state as a whole.