A
Adams County
County seat: Gettysburg
Allegheny County
County seat: Pittsburgh
Armstrong County
County seat: Kittanning
B
Beaver County
County seat: Beaver
Bedford County
County seat: Bedford
Berks County
County seat: Reading
Blair County
County seat: Hollidaysburg
Bradford County
County seat: Towanda
Bucks County
County seat: Doylestown
Butler County
County seat: Butler
C
Cambria County
County seat: Ebensburg
Cameron County
County seat: Emporium
Carbon County
County seat: Jim Thorpe
Centre County
County seat: Bellefonte
Chester County
County seat: West Chester
Clarion County
County seat: Clarion
Clearfield County
County seat: Clearfield
Clinton County
County seat: Lock Haven
Columbia County
County seat: Bloomsburg
Crawford County
County seat: Meadville
Cumberland County
County seat: Carlisle
D
Dauphin County
County seat: Harrisburg
Delaware County
County seat: Media
E
Elk County
County seat: Ridgway
Erie County
County seat: Erie
F
Fayette County
County seat: Uniontown
Forest County
County seat: Tionesta
Franklin County
County seat: Chambersburg
Fulton County
County seat: McConnellsburg
G
Greene County
County seat: Waynesburg
H
Huntingdon County
County seat: Huntingdon
I
Indiana County
County seat: Indiana
J
Jefferson County
County seat: Brookville
Juniata County
County seat: Mifflintown
L
Lackawanna County
County seat: Scranton
Lancaster County
County seat: Lancaster
Lawrence County
County seat: New Castle
Lebanon County
County seat: Lebanon
Lehigh County
County seat: Allentown
Luzerne County
County seat: Wilkes-Barre
Lycoming County
County seat: Williamsport
M
McKean County
County seat: Smethport
Mercer County
County seat: Mercer
Mifflin County
County seat: Lewistown
Monroe County
County seat: Stroudsburg
Montgomery County
County seat: Norristown
Montour County
County seat: Danville
N
Northampton County
County seat: Easton
Northumberland County
County seat: Sunbury
P
Perry County
County seat: New Bloomfield
Philadelphia County
County seat: Philadelphia
Pike County
County seat: Milford
Potter County
County seat: Coudersport
S
Schuylkill County
County seat: Pottsville
Snyder County
County seat: Middleburg
Somerset County
County seat: Somerset
Sullivan County
County seat: Laporte
Susquehanna County
County seat: Montrose
T
Tioga County
County seat: Wellsboro
U
Union County
County seat: Lewisburg
V
Venango County
County seat: Franklin
W
Warren County
County seat: Warren
Washington County
County seat: Washington
Wayne County
County seat: Honesdale
Westmoreland County
County seat: Greensburg
Wyoming County
County seat: Tunkhannock
Y
York County
County seat: York