Virginia, officially the Commonwealth of Virginia, is a state in the Southeastern and Mid-Atlantic regions of the United States between the Atlantic Coast and the Appalachian Mountains. It borders Kentucky to the west, Tennessee to the south-west, North Carolina to the south, West Virginia to the north-west, and Maryland to the north. The state's capital is Richmond and its most populous city is Virginia Beach. With a population of 8.8 million, it is the twelfth-most populous and fifteenth-most densely populated state. More than one-third of Virginia's population lives in Northern Virginia, which includes the most populous jurisdiction in the state, Fairfax County.
Eastern Virginia is part of the Atlantic Plain, and the Middle Peninsula forms the mouth of the Chesapeake Bay.