Northwestern Bank 934 3rd Ave Sheldon, IA 51201 Phone : (712) 324-5141 Business Category Banks State Commercial Banks Security State Bank 934 3rd Ave Sheldon, IA 51201 Phone : (712) 324-5141 Security State Bank Business Category Banks Automated Teller Machines (Atm) State Commercial Banks Commercial Banks Services           Agricultural Loans, ATM, Checking, Debit Cards, Equal Housing Lender, Investment Service, IRA, Land Development Loans, Land Purchase, Member FDIC, Overdraft Protection