Live Chat AI Agent Community US 421 IN 2024-06-21 Roadnow click anywhere on map to find more poi nearby Weather | Gas | Restaurants | Hotels | Car Repair | Convenience Stores Cities close to US 421 IN Delphi, IN 9.79 Monticello, IN 12.54 Chalmers, IN 14.31 Interstate highway exits close to US 421 IN Exit 178, i65 22.69 Exit 188, i65 22.81 Exit 175, i65 25.85 Interstate highways close to US 421 IN i65 map 22.69 i74 map 67.27 i465in map 90.82 State roads close to US 421 IN US 421 IN map 1.09 IN 39 map 1.17 IN 18 map 8.41