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  • Osceola, IA (641) 342-2175
  • Lamoni, IA (641) 784-3120
  • Winterset, IA (515) 462-5090

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On May 1st, we upgraded our Internet Banking site.
You will see some changes with the login process and how the site looks. Contact your local branch with questions.

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online banking changes

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Customer Testimonials

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"I switched to ASB because of their friendly and professional service."

Jeanie Sutton, Owner Quilt Country Family Restaurant

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“I’ve always enjoyed the convenience of banking at the American State Bank downtown branch office.”

- Debbie Lynn