Bridgeville is a borough in Allegheny County, Pennsylvania, United States. The population was 4,804 at the 2020 census. It is a residential suburb of the Pittsburgh metropolitan area. The village that eventually became Bridgeville acquired its name because of the first bridge built at the crossing of Chartiers Creek at the south end of what is now Washingt…Bridgeville is a borough in Allegheny County, Pennsylvania, United States. The population was 4,804 at the 2020 census. It is a residential suburb of the Pittsburgh metropolitan area. The village that eventually became Bridgeville acquired its name because of the first bridge built at the crossing of Chartiers Creek at the south end of what is now Washington Avenue.