- J and L Mobile Home Park
- Jack Island
- Jack Travis Estates Mobile Home Park
- Jackson
- Jackson Island
- Jagged Island
- James Island
- James Island
- James Street Estates Mobile Home Park
- Jamestown
- Jamestown Estates Mobile Home Park
- Jamison Corner
- Janis
- Jantz
- Jared
- Jensen Trailer Mobile Home Court
- Jericho
- Jerita
- Jerry
- Jetty Island
- Jims Corner
- Johansons Corner
- John's Landing Mobile Home Park
- John Sam Lake
- Johns Island
- Johnson
- Johnson Island
- Johnson Landing
- Johnsons Corner
- Base de la Fuerza Aérea McChord