Live Chat I-84 Community Nearby Traffic Sumpter Post Office (Amenity postoffice) 2024-06-08 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Sumpter Post Office (Amenity Postoffice) Haines, OR 28.03 Hereford, OR 30.13 Unity, OR 30.42 Interstate highway exits close to Sumpter Post Office (Amenity Postoffice) Exit 304, i84 32.86 Exit 306, i84 32.96 Exit 302, i84 33.03 Interstate highways close to Sumpter Post Office (Amenity Postoffice) i84 map 32.86 i82 map 148.54 i182wa map 180.68 State roads close to Sumpter Post Office (Amenity Postoffice) US 26 OR map 22.87 US 30 OR map 28.50 US 395 OR map 63.30