Format:Comitatul Butler, Pennsylvania

	v • d • m Municipalități și comunități din Butler County, Pennsylvania Reședința comitatului: Butler
City	Butler
Boroughs	Bruin Callery Cherry Valley Chicora Connoquenessing East Butler Eau Claire Evans City Fairview Harmony Harrisville Karns City Mars Petrolia Portersville Prospect Saxonburg Seven Fields Slippery Rock Valencia West Liberty West Sunbury Zelienople
Townships	Adams Allegheny Brady Buffalo Butler Center Cherry Clay Clearfield Clinton Concord Connoquenessing Cranberry Donegal Fairview Forward Franklin Jackson Jefferson Lancaster Marion Mercer Middlesex Muddy Creek Oakland Parker Penn Slippery Rock Summit Venango Washington Winfield Worth
CDPs	Homeacre-Lyndora Lake Arthur Estates Meadowood Meridian Nixon Oak Hills Shanor-Northvue Slippery Rock University Unionville
Unincorporated communities	Boyers Cabot Eidenau Fernway Fox Run Herman Hilliards Murrinsville Renfrew Sarver Wahlville Watters
Footnotes	‡This populated place also has portions in an adjacent county or counties