Place
- Pennsylvania--Cheswick1
- Pennsylvania--Chicora1
- Pennsylvania--Clark's Summit1
- Pennsylvania--Cleona1
- Pennsylvania--Clifton Heights1
- Pennsylvania--Cochranton1
- Pennsylvania--Cokeville1
- Pennsylvania--Colebrookdale1
- Pennsylvania--College Hill1
- Pennsylvania--Concrete City1
- Pennsylvania--Connaughtown1
- Pennsylvania--Conneaut Lake Boro1
- Pennsylvania--Conneaut Lake Park1
- Pennsylvania--Connersville1
- Pennsylvania--Conway1
- Pennsylvania--Covington1
- Pennsylvania--Cowanesque1
- Pennsylvania--Crafton1
- Pennsylvania--Cresson PO1
- Pennsylvania--Custer City1