Rock Rivers Bancorp 301 1st Ave Rock Rapids, IA 51246 Phone : (712) 472-2537 Business Category Holding Companies - Bank Frontier Bank 301 1st Ave Rock Rapids, IA 51246 Phone : (712) 472-2537 Frontier Bank Business Category Banks Personal Loans Mortgage Bankers & Real Estate Loans State Commercial Banks Holding Companies - Bank Services           ATM, Bank, Cash Management, CDs, Checking, Commercial, Commercial Banking, Community Bank, Credit, Customer Service, Equal Housing Lender, Federal, Flexible Terms, Funds, Government, Housing, Lines Of Credit, Loan, Loans, Money Market, Purchase, Real Estate Loans, Refinancing, Savings, Tools