- Hildreth
- Hassel
- Holker
- Highwoods Mobile Home Park
- Highland Mobile Home Park
- Hunters Trailer Court
- Holmes Council Islands
- Hoosac
- Half Moon Mobile Home Park
- Halfmoon
- Happy Haven
- Hiland Trailer Court
- Haley Subdivision Trailer Court
- Hebgen Lake Estates
- Hidden Valley Mobile Estates
- Hillman
- Holland
- Horse Butte Acres Trailer Court
- Huletts Trailer Court
- Hillside
- Hidden Lake Colony
- Hacienda Trailer Court
- Havre North
- Heads Trailer Court
- Hilldale Colony
- Hollingshead Trailer Court
- Homestake
- Hall Trailer Court
- Hauck
- Helena Valley Northeast