We will be CLOSED Friday, July 4, 2025 in observance of Independence Day.

Any transactions after closing Thursday, July 3, 2025 will post to your account on Monday, July 7, 2025.

*This affects all wires & ACH transactions.

Our Marengo Branch will close at 4pm on Thursday, July 3rd for the Marengo 3rd of July Parade.

IMPORTANT MESSAGE TO COMBAT SCAMS: Grinnell State Bank will never contact you and request your One-Time-Passcode for your online/mobile banking. If someone is claiming to be Grinnell State Bank and has requested this information, please hang up or ignore the text and call your local branch.

Personal Banking

Free online banking, mobile banking, mobile wallet, and bill pay with all accounts

Banking made for Iowans

At Grinnell State Bank, we get to know our customers. We’ve been locally owned since 1925, and we love helping our neighbors with all of their banking needs.

Even if you move out of Iowa, you can keep banking with us and get the same excellent customer service no matter where you are.

Benefits of banking locally:

Your funds help support local business loans, which will help them grow and thrive.
Bankers will get to know your name and understand your preferences.
Real people are available to help you navigate our mobile app.

We may be almost 100 years old, but our mobile banking technology is state-of-the-art. Easy mobile deposits, bill pay, transfers, and more are available through our mobile app.

Not confident with new technology? A real person answers our phone line, and they can help walk you through any questions you have.

Need an easy way to see your whole financial picture?

Check out our free financial planning tool that helps you budget and see all of your accounts in one easy to use portal!

Contact us, watch the video or click below to learn more!

Not a fan of ATM fees?

We aren’t either, which is why Grinnell State Bank is part of the Shazam Privileged Status Network. Our customers can use over 3,100 ATM’s across the country without worrying about fees.

Contact us today to set up your GSB Account!

Need to Reorder Checks?

Conveniently order checks through the online ordering system or call any personal banker to order checks today!

Our Locations

24/7 Telebanking

Balances, Transfers, and Account Information

PIN #: Unique number set at account opening.

Routing Number

073901725

DOWNLOAD OUR APP

©2025- Grinnell State Bank

Privacy Policy | Online Terms and Conditions | Website Design by Running Robots

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