The 21st Senatorial District includes part of Butler County consisting of the city of Butler and the townships of Adams, Brady, Butler, Center, Cherry, Clay, Connoquenessing, Cranberry, Forward, Franklin, Marion, Mercer, Penn and Slippery Rock and the boroughs of Callery, Connoquenessing, Evans City, Harrisville, Mars, Prospect, Seven Fields, Slippery Rock, Valencia, West Liberty and West Sunbury; all of Clarion County; all of Forest County; all of Venango County; and part of Warren County consisting of the city of Warren and the townships of Brokenstraw, Cherry Grove, Conewango, Deerfield, Elk, Farmington, Freehold, Glade, Limestone, Mead, Pine Grove, Pittsfield, Pleasant, Sheffield, Sugar Grove, Triumph and Watson and the boroughs of Bear Lake, Clarendon, Sugar Grove, Tidioute and Youngsville.
OIL CITY 229 Elm Street Oil City, PA 16301 (814) 677-6345 FAX: (814) 677-6331
BUTLER 110 East Diamond Street Butler, PA 16001 (724) 282-1234 FAX: (724) 282-6852
WARREN 22045 Route 6 Warren, PA 16365-7952 (814) 728-2100 FAX: (814) 728-2102
HARRISBURG 170 Main Capitol Harrisburg, PA 17120 (717) 787-9684 FAX: (717) 787-6088 TTY: 800-364-1581