Live Chat I-70 Community Nearby Traffic Castleton Post Office (Amenity postoffice) 2024-04-30 Roadnow Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to Castleton Post Office (Amenity Postoffice) Beech Grove, IN 6.40 Greenwood, IN 17.58 New Palestine, IN 18.85 Interstate highway exits close to Castleton Post Office (Amenity Postoffice) Exit 85b a, i70 2.62 Exit 112a, i65 2.86 Exit 83b, i70 2.93 Interstate highways close to Castleton Post Office (Amenity Postoffice) i70 map 2.62 i65 map 2.86 i465in map 6.68 State roads close to Castleton Post Office (Amenity Postoffice) US 31 KY IN map 6.54 US 52 IN map 6.63 US 421 IN map 6.98