List of Michigan State Historic Sites in St. Clair County, Michigan Current listings Current listings

| Name_ | Location_ | City | Listing_date_ |
|---|---|---|---|
| Fort Sinclair (20SC58) | South of the mouth of the Pine River on the St. Clair River | St. Clair | February 17, 1965 |
| Fort St. Joseph | Gratiot Park on M-25 (Gratiot Avenue) and Forest Street, under the Bluewater Bridge | Port Huron | August 23, 1956 |
| Grace Episcopal Church | 1213 Sixth Street | Port Huron | April 18, 1991 |
| Grand Trunk Western Railroad Depot† | 520 State Street | Port Huron | September 2, 1966 |
| Gratiot Park United Methodist Church | 2503 Cherry Street | Port Huron | March 10, 1988 |
| Graziadei-Casello Building | 307 Huron Avenue | Port Huron | November 16, 1995 |
| Harrington Hotel† | 1026 Military, between Pine and Wall Streets | Port Huron | November 16, 1981 |
| Harsen Home | 2006 Golf Course Road | Harsens Island | February 7, 1977 |