- Juneau
- Jericho Mills
- Jubilee
- Justus
- Jacksonville
- Jenkins Corner
- Jacobus
- Jamison City
- Jeannette
- Jeddo
- Jackson Knolls Gardens
- Joyce
- Jenkintown
- Jennerstown
- Jermyn
- Jerome
- Jersey Shore
- Jerseytown
- Jim Thorpe
- Johnsonburg
- Johnstown
- Jonestown
- Juniata Terrace
- Johnstown
- Jacksonville
- Jordan Valley
- Juniper Circle
- Japan
- Jeansville
- Johnson Greene