Live Chat I-90 Community Nearby Traffic Watertown Post Office (Amenity postoffice) 2024-05-13 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Watertown Post Office (Amenity Postoffice) Belmont, MA 2.13 Newton, MA 2.15 Newtonville, MA 3.36 Interstate highway exits close to Watertown Post Office (Amenity Postoffice) Exit 17, i90 1.84 Exit 19, i90 3.05 Exit 20, i90 4.86 Interstate highways close to Watertown Post Office (Amenity Postoffice) i90 map 1.84 i95 map 7.38 i93 map 7.52 State roads close to Watertown Post Office (Amenity Postoffice) US 20 MA map 0.92 MA 16 map 2.60 MA 60 map 2.61