Butler County Flag

Butler County

State:
Pennsylvania
County Seat:
Butler

Butler County's estimated 2026 population is 200,693 with a growth rate of 0.34% in the past year according to the most recent United States census data. Butler County is the 19th largest county in Pennsylvania. The 2010 population was 184,085 and has seen a growth of 9.02% since that time.

200,693
Total Population
254
Population Density (mi²)
19
Population Rank (State)
676 0.34%
Annual Population Growth

Butler County Population

Demographics

Economics and Income Statistics