Vanderburgh County is a county in the US state of Indiana. In the 2000 census the county had a population of 171,922 inhabitants. It is part of the Evansville metropolitan area. The county seat is Evansville. The county was formed on January 7,1818 from portions of the counties of Gibson, Posey and Warrick. It was named in honor of Henry Vanderburgh, who fought in the War of Independence of the United States and who later served as a judge in the Indiana Territory.