- Heron
- Highwood
- Hingham
- Hamilton
- Hardin
- Harlem
- Harrison
- Hays
- Hot Springs
- Huntley
- Harlowton
- Havre
- Heart Butte
- Helena
- Herron
- Hobson
- Hungry Horse
- Hysham
- Hiland Trailer Court
- H and H Trailer Court
- Hacienda Trailer Court
- Hackney
- Hagans Crossing
- Hale Place
- Haley Subdivision Trailer Court
- Half Moon Mobile Home Park
- Halfmoon
- Hall
- Hall Trailer Court
- Hamblin Heights Mobile Village