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New name. Same faces. Your goals.

Alliant Credit Union Evolving, Became AIM Credit Union on January 1, 2022.

Watch our announcement video.


Alliant Credit Union has continually evolved in the 89 years since our inception in 1933. We have welcomed several new employers and other groups to our field of membership. Our Alliant Credit Union is now the largest closed field of membership credit union in Iowa!

We feel now is an opportune time to recognize our evolution and growth. To reflect the entirety of our membership, our Board has made the decision to change the name of our credit union to ensure future growth and our focus on our members.

Effective January 1, 2022. Our new name is AIM Credit Union.

  • This is a change in name ONLY
  • Same Owners = YOU
  • Same Employees
  • Same Services
  • Same FOCUS ON YOU!

This is an evolution of our credit union and allows for future growth in all the segments we serve including: Alliant Energy, Industries, Medical professionals, labor unions, educators, and many other employee groups in Iowa and Wisconsin.

Since our inception in 1933, Alliant Credit Union has seen steady growth and has welcomed several other employee groups. There is a timeline of our growth listed below.

What does this mean for our members?

  • Account Numbers and Routing Numbers will not change.
  • Debit and Credit Cards will continue to function. New cards coming soon!
  • Any printed checks you have will continue to be honored. You will receive checks with the new name the next time you reorder.
  • Automatic Payments/Deposits will continue and there is no action required on your part.
  • Our web address URL will change to; the current web address will stay active and will redirect you to our new URL.

Please reach out to us with any questions or concerns you may have. We appreciate all the support you have shown your credit union in the past and we look forward to continuing to provide the best service in the business for our members.

A Timeline of Growth

1933     Founded by a few employees of Interstate Power, an electric utility company, to loan money to their coworkers during the great depression.

1999     Interstate Credit Union changed its name to Alliant Credit Union to align with utility company mergers and the name change of Interstate Power to Alliant Energy.

2005     Welcomed the members of Upholsterers Credit Union serving the previous and current employees of Flexsteel, a Dubuque-based furniture manufacturer.

2007     Welcomed the members of Health Services Credit Union in Dubuque, IA. Membership was extended to anyone working for a licensed medical organization in Dubuque, Linn, and Des Moines Counties, and contiguous counties. This includes students majoring in the health care field in Dubuque County.

2015     Welcomed the members of Three I Credit Union in Burlington, IA. Anyone who works in industries in Des Moines County and contiguous counties in Iowa became eligible for membership with Alliant Credit Union.

2015     Welcomed the members of General Drivers Credit Union and all members and employees of General Drivers and Helpers Local 120 and employees of the Dubuque (IA) Community School District.

2018     Welcomed the members of the Des Moines County Postal Credit Union.

2021     Alliant Credit Union has over 11,000 members from over 50 Select Employee Groups in Iowa and Wisconsin including: Alliant Energy; Industries in Des Moines County and contiguous counties; Des Moines County Postal Credit Union; General Drivers and Helpers Union Local 120 of Dubuque, IA; United Steelworks of America, AFL-CIO, CLC, Local 1861 of Dubuque, IA; Healthcare facilities in Dubuque, Linn and Des Moines Counties, and their contiguous counties; the MedQuarter District of Cedar Rapids, IA; and nearly 90 additional employers in Iowa and Wisconsin.

2022     Alliant Credit Union changes its name to AIM Credit Union.