| Oak Grove Heights, AR (Town) |
| Oak Grove Town, WI (Town) |
| Oak Grove Town, WI (Town) |
| Oak Grove Town, WI (Town) |
| Oak Grove Village, MO (Village) |
| Oak Gulch, SD (Township) |
| Oak Harbor, OH (Village) |
| Oak Harbor, WA (City) |
| Oak Hill, KS (City) |
| Oak Hill, TN (City) |
| Oak Hill, WV (City) |
| Oak Hill, OH (Village) |
| Oak Hill , FL (City) |
| Oak Hill, AL (Town) |
| Oak Hollow, SD (Township) |
