- J B Island
- J's Trailer Park
- Jack Pine
- Jackfish Island
- Jackpine Island
- Jackrabbit Island
- Jackson
- Jackson Heights Trailer Park
- Jacobs Prairie
- Jacobson
- Jakeville
- Jamar Mobile Home Park
- Jameson
- Janesville
- Jarrett
- Jasper
- Jasper Sunrise Village
- Jay See Landing
- Jeffers
- Jefferson
- Jelle
- Jenkins
- Jennie
- Jenson Trailer Park
- Jessenland
- Jessie Lake
- Johnsburg
- Johnsdale
- Johnson
- Johnson's Mobile Home Park