Live Chat I-57 Community Nearby Traffic Mattoon Post Office (Amenity postoffice) 2024-05-16 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Mattoon Post Office (Amenity Postoffice) Lerna, IL 12.10 Gays, IL 12.29 Humboldt, IL 13.53 Interstate highway exits close to Mattoon Post Office (Amenity Postoffice) Exit 190b a, i57 4.63 Exit 184, i57 5.43 Exit 177, i57 16.81 Interstate highways close to Mattoon Post Office (Amenity Postoffice) i57 map 4.63 i70 map 30.92 i72 map 65.28 State roads close to Mattoon Post Office (Amenity Postoffice) US 45 IL map 0.20 IL 16 map 0.61 IL 121 map 1.63