Cities in United States ( 10,163 )
- Johnstown, Colorado
- Johnstown, New York
- Johnstown, Ohio
- Johnstown, Pennsylvania
- Joliet
- Jollyville
- Jones, Oklahoma
- Jonesboro, Arkansas
- Jonesboro, Georgia
- Jonesboro, Louisiana
- Jonesborough, Tennessee
- Joplin, Missouri
- Joppatowne
- Jordan, Minnesota
- Joshua, Texas
- Joshua Tree, California
- Jourdanton
- Junction City, Kansas
- Junction City, Oregon
- Junction, Texas
- June Park
- Juneau, Alaska
- Juneau, Wisconsin
- Juno Beach, Florida
- Jupiter, Florida
- Justice, Illinois
- Justin
- K. I. Sawyer Air Force Base
- Kachina Village
- Kahaluu
- Kahaluu-Keauhou
- Kahuku
- Kahului
- Kailua, Honolulu County, Hawaii
- Kailua-Kona
- Kalaheo