- Jack Island
- Jack Oak Island
- Jackson
- Jacksonport
- Jacksonville
- James Island
- Jamestown
- Janesville
- Jefferson
- Jefferson Junction
- Jeffris
- Jenkinsville
- Jennings
- Jensen's Mobile Home Village
- Jericho
- Jericho
- Jersey City
- Jewelwing Island
- Jewett
- Jim Falls
- Jimtown
- Joel
- Johannesburg
- Johnsburg
- Johnson
- Johnson Creek
- Johnson Island
- Johnsonville
- Johnstown
- Johnstown