- Jantz
- Jerry
- Johnson Island
- Jagged Island
- James Island
- Juniper Mobile Estates
- Jackson
- Joso
- Jericho
- Juniper Beach
- Jensen Trailer Mobile Home Court
- Jovita
- Junction
- Johansons Corner
- Janis
- John's Landing Mobile Home Park
- Jack Travis Estates Mobile Home Park
- Jamestown Estates Mobile Home Park
- Jims Corner
- Johnson Landing
- Johnsons Corner
- Base de la Fuerza Aérea McChord
- Junction City
- James Island
- Johns Island
- Jones Island
- Justice Island
- Jack Island
- J and L Mobile Home Park
- Jamison Corner