Illinois has about 239 different credit unions with ALLIANT CREDIT UNION being the largest credit union in Illinois having more than $13.97 billion in total assets and over 586,435 members.
| Name | Membership | Total Assets |
|---|---|---|
| 1ST MIDAMERICA CREDIT UNION731 E Bethalto Dr BETHALTO, IL 62010 | State chartered natural person | $872,569,531 |
| 2 RIVERS AREA CREDIT UNION296 W JEFFERY ST KANKAKEE, IL 60901 | State chartered natural person | $24,433,002 |
| 77TH STREET DEPOT FEDERAL CREDIT UNION5401 S Wentworth Ave Ste 26 CHICAGO, IL 60609-6300 | Multiple common bond - Primarily transportation | $19,569,500 |
| A.A.E.C. CREDIT UNION1104 S Arlington Heights Rd ARLINGTON HEIGH, IL 60005-3141 | State chartered natural person | $98,449,726 |
| A.S.H. EMPLOYEES CREDIT UNIONPO BOX 644 ANNA, IL 62906 | State chartered natural person | $5,118,033 |
| ABBOTT LABORATORIES CREDIT UNION325 Tri State Pkwy GURNEE, IL 60031 | State chartered natural person | $1,031,526,781 |
| ABRI CREDIT UNION1350 W Renwick Rd ROMEOVILLE, IL 60446-5345 | State chartered natural person | $399,043,059 |
| ACCESS CREDIT UNION1807 W CERMAK RD BROADVIEW, IL 60155 | State chartered natural person | $61,564,005 |
| ACME CONTINENTAL CREDIT UNION13601 S Perry Ave RIVERDALE, IL 60827-1655 | State chartered natural person | $56,936,397 |
| ADM CREDIT UNION3695 E William Street Rd DECATUR, IL 62521 | State chartered natural person | $16,964,453 |
| ADVANTAGE ONE CREDIT UNION204 N Jackson St MORRISON, IL 61270 | State chartered natural person | $25,504,677 |
| ALDERSGATE FEDERAL CREDIT UNIONPO Box 1790 MARION, IL 62959 | Associational - Religious, other than those designated 'low-income' | $7,909,750 |
| ALLIANT CREDIT UNION11545 W TOUHY AVE CHICAGO, IL 60666 | State chartered natural person | $13,970,828,354 |
| ALTON MUNICIPAL EMPLOYEES FEDERAL CREDIT UNION3212 COLLEGE AVE ALTON, IL 62002 | Federal, State, Local Government | $581,858 |
| ALTONIZED COMMUNITY FEDERAL CREDIT UNIONP.O. BOX 246 ALTON, IL 62002 | Community credit unions, urban or rural, other than those designated 'low income' | $52,196,546 |
| AMBRAW FEDERAL CREDIT UNIONPO Box 119 LAWRENCEVILLE, IL 62439 | Community credit unions, urban or rural, other than those designated 'low income' | $15,452,086 |
| ANCO COMMUNITY CREDIT UNION154 3rd St LA SALLE, IL 61301-2312 | State chartered natural person | $12,239,451 |
| ARCHER HEIGHTS CREDIT UNION6554 W ARCHER AVE CHICAGO, IL 60638 | State chartered natural person | $21,942,221 |
| AREA EDUCATIONAL CREDIT UNION812 CHARLESTON AVE MATTOON, IL 61938 | State chartered natural person | $29,222,895 |
| AURORA FIREFIGHTERS' CREDIT UNION88 N La Salle St AURORA, IL 60505-3333 | State chartered natural person | $2,456,961 |