Live Chat I-90 Community Nearby Traffic Mercer Island Post Office (Amenity postoffice) 2024-06-12 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Mercer Island Post Office (Amenity Postoffice) Seattle, WA 4.31 Bellevue, WA 5.89 Medina, WA 6.38 Interstate highway exits close to Mercer Island Post Office (Amenity Postoffice) Exit 7c, i90 2.03 Exit 8, i90 2.14 Exit 7b a, i90 2.34 Interstate highways close to Mercer Island Post Office (Amenity Postoffice) i90 map 2.03 i405wa map 3.45 i5 map 6.43 State roads close to Mercer Island Post Office (Amenity Postoffice) WA 522 map 14.17 US 2 WA map 37.61 WA 410 map 40.94