- J and J Mobile Home Park
- J D Carney Mobile Home Park
- Jackson
- Jacksonville
- Jacob
- Jalapa
- Jamaica
- Jamesburg
- Jamestown
- Jamestown
- Janesville
- Jaques
- Jefferson City
- Jefferson Corners
- Jeisyville
- Jenkins
- Jenkins
- Jerome
- Jerseyville
- Jess
- Jessical Lane Subdivision
- Jewell Road
- Jewett
- Jim Davis Mobile Home Park
- Jim Young Island
- Jimtown
- Jimtown
- Joetta
- Johannisburg
- Johnsburg