Contact Us

Send us a letter:

First Security Bank
316 Byron Avenue North
PO Box 128
Byron, MN 55920

Give us a call or send us a fax:

Fax: 507-775-2510

Visit Us:

Visit us and speak to a Customer Associate if you ever have a questions we can help you with, or just drop in to say hi!

Lost or Stolen Cards:

If your card has been lost or stolen, please call First Security Bank so that we may close the card and re-issue you a new one. You may also call 1-800-554-8969 to report the card lost or stolen.

Email us:

For general questions or comments please contact us at For account related questions, please e-mail our bookkeeping department at

Secure Email:

If you need to send personal/confidential information, please use our secure email through ZixCorp.


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