J
- Jackson Center
- Jacobus
- Jamestown
- Jeddo
- Jefferson (Greene County)
- Jefferson (York County)
- Jefferson Hills
- Jenkintown
- Jennerstown
- Jermyn
- Jersey Shore
- Jessup
- Jim Thorpe
- Johnsonburg
- Jonestown
- Juniata Terrace
Read more about this topic: List Of Towns And Boroughs In Pennsylvania