Henrico is a county located in the Commonwealth of Virginia, a state of the United States. As of 2010, Henrico was home to 306,935 people. It is located in the Richmond-Petersburg region and is a portion of the Richmond Metropolitan Statistical Area (MSA). Founded in 1634 as one of the eight original shires of Virginia, Henrico is one of the oldest counties in the United States. The shape of Henrico County curves around the northern side of the city of Richmond.