- Hawthorne Terrace
- Hay Island
- Hayden
- Hayestown
- Haywardville
- Hazardville
- Hebron
- Heilwield Corner
- Hen Island
- Heritage Village
- Hickory Haven
- Hiding Rocks
- Higganum
- High Island
- High Ridge
- High Ridge
- High Rock
- Highland
- Highland Estates
- Highland Park
- Highwater Rock
- Higley Village
- Hillcrest
- Hilliardville
- Hitchcock Rock
- Hoadley Neck
- Hobs Island
- Hockanum
- Hog Island
- Holcomb Island