Warrick County is a county in the US state of Indiana. In the 2000 census the county had a population of 52,383 inhabitants. It is part of the Evansville metropolitan area. The county seat is Boonville. The county was formed on April 30,1813 from a portion of Gibson County. It was named in honor of Jacob Warrick, a commander who died in the Battle of Tippecanoe during the Tecumseh War.