1. United States Postal Service
9134 Piscataway Rd, Clinton, MD 20735
Coordinate: 38.76412,-76.90237
Phone: (800) 275-8777
2. U. S. Postal Service Federal Credit Union
7905 Malcolm Rd Ste 311, Clinton, MD 20735
Coordinate: 38.78093,-76.88989
Phone: (301) 856-5000
3. US Post Office
9001 Woody Ter, Clinton, MD 20735
Coordinate: 38.765724,-76.88631
Phone: (800) 275-8777