- Johnston City
- Joliet
- Joppa
- Joy
- Justice
- Jones Ridge
- Jefferson City
- Johnsonville
- J and J Mobile Home Park
- Jim Davis Mobile Home Park
- Joppa Junction
- Jefferson Corners
- Johannisburg
- J D Carney Mobile Home Park
- Jenkins
- Juanitas Mobile Home Park
- Jonesville
- Johnson Island
- Jonesville
- Jackson
- Joy Prairie
- Jamestown
- Jonas Johnson Island
- Jim Young Island