Carroll County State Bank Address: 905 W US Highway 30, Carroll, IA 51401 Phone: (712) 792-0064 Banks, Loans Other Businesses: Dupaco Community Credit Union at 503 W US Highway 30, Carroll, IA 51401 Iowa Savings Bank at 510 W US Highway 30, Carroll, IA 51401 Carroll County State Bank at 126 W 6th St, Carroll, IA 51401 Commercial Savings Bank at 627 N Adams St, Carroll, IA 51401