06/02/2026
A quick reminder to help keep your financial information safe: If you need to send documents to the bank, please use our Secure File Transfer option on our website. You’ll find the link at the bottom of the page at BankISB.com.
Your Banker. Your Neighbor. Your Friend. We give simple answers to complicated financial matters. St
5 E Call Street
Algona, IA
50511
| Monday | 8:30am - 4:30pm |
| Tuesday | 8:30am - 5pm |
| Wednesday | 8:30am - 5pm |
| Thursday | 8:30am - 4:30pm |
| Friday | 8:30am - 5pm |
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