| Arizona, AZ (State) |
| Arkadelphia, AR (City) |
| Arkansas, AR (State) |
| Arkansas City, AR (City) |
| Arkansas City, KS (City) |
| Arkansas County, AR (County) |
| Arkoe, MO (Village) |
| Arkoma, OK (Town) |
| Arkport, NY (Village) |
| Arkwright, NY (Town) |
| Arland, WI (Town) |
| Arley, AL (Town) |
| Arlington, IA (City) |
| Arlington, MN (City) |
| Arlington, MN (Township) |
