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  • ACKLEY
    650 Main St, Box 149 - Ackley

  • CONRAD
    103 E Center St, Box 400 - Conrad

  • GENEVA
    408 Front St - Geneva

  • GRUNDY CENTER
    529 G Ave, Box 246 - Grundy Center

  • GRUNDY CENTER LOAN BANK
    510 F Ave, Box 246 - Grundy Center

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    315 Main St - Iowa Falls

  • MANCHESTER
    300 E Main St, Box 439 - Manchester

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    2504 S 2nd St, Box 736 - Marshalltown

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    629 Broad St, Box 128 - Story City

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Resources

Valuable Help When You Need It

Explore our resource area, full of advice, tips and processes to assist with your financial goals, prevent fraud and maximize your security.

 


Lost or Stolen Card

Have you lost your debit or credit card, or believe it was stolen? Here are the numbers you need to call.

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Mobile Banking FAQs

As with any technology, Mobile Banking takes time to learn and has occasional issues. See our most commonly asked questions and answers about Mobile Banking.

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Online Banking FAQs

Need help with Online Banking? Our Online Banking FAQs are your go-to spot for the most common questions and their answers.

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Security Tips

Keeping your family and financial information safe is a top priority. Our Security Tips section outlines various ways to protect yourself every day.

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Calculators

From mortgage payments and future investment values to setting aside money to pay off credit card debt, our library of financial calculators is here to help.

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Order Checks

Out of checks? Ordering new ones is as simple as calling the right phone number for quick and reliable service.

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SwitchKit

Are you ready to make the switch to GNB Bank? Great! Our online SwitchKit takes step by step through the process of switching over your bank accounts to GNB.

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Donation/Sponsorship Request Form

We're always ready and willing to help out community organizations! Request a donation from GNB Bank or assistance in sponsoring your next event quickly and easily.

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