Places beginning with JA in Pennsylvania, United States
- Jacks Mountain
- Jackson
- Jackson
- Jackson
- Jackson
- Jackson Center
- Jackson Center
- Jackson Center, Borough of
- Jackson Corner
- Jackson Crossing
- Jackson Knolls Gardens
- Jackson Lick (subdivision)
- Jackson Mills
- Jackson Run
- Jackson Summit
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jackson, Township of
- Jacksonville
- Jacksonville
- Jacksonville
- Jacksonville
- Jacksonville
- Jacksonville
- Jacksonville, Borough of
- Jacksonwald
- Jacksville
- Jacktown
- Jacobsburg (historical)
- Jacobs Creek
- Jacobs Mills
- Jacobus
- Jacobus, Borough of
- Jalappa
- James City
- Jamestown
- Jamestown
- Jamestown
- Jamestown, Borough of
- Jamesville
- Jamison
- Jamison
- Jamison
- Jamison City
- Jamisonville
- Janesville
- Janney
- Japan
- Jarrettown
- Jay, Township of