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Contact Us

We appreciate hearing from you and are always available to answer questions or provide information. Please feel free to contact us in the way most convenient for you.

QUICK LINKS: Dubuque Office | Cedar Rapids Office | Email Addresses |
Touch Tone Teller | Feedback Form

ACU serves employees, and their family members, of Alliant Energy, American Transmission Company, Nuclear Management Company, Flexsteel, Georgia Pacific, and Dubuque Greyhound Park & Casino.

DUBUQUE    
Main Office - Staff Listing»
Branch Office - Staff Listing»
Branch Office - Staff Listing»

Address:
1200 Associates Drive, Ste 102
Dubuque, IA 52002

Phone: (563) 557-2229
Toll Free: 1-800-928-4328
Fax: (563) 584-7548

Hours:
Monday - Thursday
Office: 8:00a.m. - 5:00p.m.
Drive Up: 8:00a.m. - 5:30p.m.
Friday
Office: 8:00a.m. - 6:00p.m.
Drive Up: 8:00a.m. - 6:00p.m.
Saturday
Office: 8:30a.m. - 12:30p.m.
Drive Up: 8:30a.m. - 12:30p.m.

Address:
160 West 10th Street
Dubuque, IA 52001-4848

Phone: (563) 584-7517
Toll Free: 1-800-928-4328
Fax: (563) 557-2246

Hours:
Monday - Friday
   Office: 8:00a.m. - 5:00p.m.

  

Address:
1402 White Street
Dubuque, IA 52001

Phone: (563) 556-8620
Toll Free: 1-800-928-4328
Fax: (563) 556-5135

Hours:
Monday - Thursday
Office: 8:00a.m. - 5:30p.m.
Drive Up: 8:00a.m. - 5:30p.m.
Friday
Office: 8:00a.m. - 6:00p.m.
Drive Up: 8:00a.m. - 6:00p.m.
Saturday
Office: 8:30a.m. - 12:30p.m.
Drive Up: 8:30a.m. - 12:30p.m.

     
Branch Office - Staff Listing»
   

Address:
250 Mercy Drive
Dubuque, IA 52001

Phone: (563) 589-9084
Toll Free:  1-800-637-2991
Fax: (563) 589-8892
Hours:
Monday
Office: 6:30a.m. - 5:30p.m.
Tuesday – Thursday
Office: 9:00a.m. - 3:30p.m.
Friday
Office: 6:30a.m. – 5:30p.m.
CEDAR RAPIDS
Branch Office - Staff Listing»
   

Address:
200 First Street SE
Cedar Rapids, IA 52401

Phone:  (319) 786-4472
Toll Free:  1-800-928-4328
Fax:  (319) 786-7206
Hours:
Monday - Friday
7:30 a.m. to 5:30 p.m.
Saturday
8:30 a.m. to 12:30 p.m.
Email: Touch Tone Teller
  • 563-582-9959
  • 563-582-9964
  • 888-995-9959 (Toll-free)
  • More Info»
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We like to hear from you, but please realize that email is not a secure transmission route. Thus we ask that you never send sensitive personal information like Social Security numbers, Account numbers, Credit Card numbers or any type of password via email to Alliant Credit Union or anyone else for your own protection. Please use one of our secured forms or a telephone call when submitting this information.