Credit Unions in Illinois
192 credit unions are headquartered in Illinois, of which 2 have a published directory profile. Eligibility, rates, and product availability change often — always confirm directly with the credit union.
According to the directory data, Illinois has 192 credit union records headquartered in the state, including institutions based in Chicago, Peoria, Springfield. This page helps you compare official credit union links, headquarters info, membership details where available, and verification sources.
The largest credit union in Illinois by reported assets is Alliant Credit Union headquartered in Chicago.
Membership eligibility in Illinois is set by each institution's field of membership — typically tied to employment, geography, affiliation with a school or association, or family of an existing member. Before applying, review the credit union's official membership page and confirm the NCUA charter number.
Directory snapshot for Illinois
Total listed
192
Enriched profiles
2
With website
158
Branch locator
1
Online banking
2
Mobile app
2
- Largest by assets
- Alliant Credit Union · Chicago
- Largest by members
- Alliant Credit Union · 923,396 members
- Most common headquarters cities
- Chicago (38)Peoria (8)Springfield (8)Moline (6)Decatur (6)
- Most recent verification date
- 2026-06-02
Featured profiles in Illinois
Individually reviewed listings with verified official links.
All credit unions in Illinois
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Related financial education
These free resources are separate from the directory and do not recommend a particular institution.