Mac's Diner Address: 202 S Business 51, Assumption, IL 62510 Phone: (217) 226-4297 Restaurants, Diner Other Businesses: SUBWAY at 302 S Business 51, Assumption, IL 62510 Dinner Bucket at 129 S Chestnut St, Assumption, IL 62510 First National Bank-Assumption at 141 N Chestnut St, Assumption, IL 62510