Pennsylvania Senate, District 21

The district includes the following areas: Butler County • Allegheny Township • Brady Township • Bruin • Buffalo Township • Butler • Butler Township • Center Township • Cherry Township • Cherry Valley • Chicora • Clay Township • Clearfield Township • Clinton Township • Concord Township • Connoquenessing • Connoquenessing Township • Donegal Township • East Butler • Eau Claire • Fairview • Fairview Township • Franklin Township • Harrisville • Jefferson Township • Karns City • Marion Township • Mercer Township • Muddy Creek Township • Oakland Township • Parker Township • Penn Township • Petrolia • Portersville • Prospect • Saxonburg • Slippery Rock • Slippery Rock Township • Summit Township • Venango Township • Washington Township • West Liberty • West Sunbury • Winfield Township • Worth Township All of Clarion County Erie County • Concord Township • Corry • Elgin • Wayne Township All of Forest county All of Venango County All of Warren County ==Senators==