Butler County, Pennsylvania
Butler County is a county in Pennsylvania with an estimated population of 198,413 in 2023. 18 cities, towns and Census places in it are indexed here.
Largest places in Butler County
Butler 13,099Zelienople 3,791Slippery Rock 3,579Seven Fields 2,862Evans City 1,689Mars 1,425Saxonburg 1,386Prospect 1,091Harmony 926Chicora 893Harrisville 800Connoquenessing 755East Butler 743Valencia 690Bruin 408Callery 349West Liberty 323Eau Claire 299
About Butler County
Butler County is one of the counties of Pennsylvania. County governments in Pennsylvania handle local services such as courts, property records and elections; cities and towns inside the county run their own municipal services. Population figures come from the Census Bureau's Vintage 2023 estimates, which are updated annually.