Illinois has about 239 different credit unions with ALLIANT CREDIT UNION being the largest credit union in Illinois having more than $13.54 billion in total assets and over 550,400 members.
| Name | Membership | Total Assets |
|---|---|---|
| 1ST MIDAMERICA CREDIT UNION731 E Bethalto Dr BETHALTO, IL 62010 | State chartered natural person | $825,806,409 |
| 2 RIVERS AREA CREDIT UNION296 W JEFFERY ST KANKAKEE, IL 60901 | State chartered natural person | $21,086,360 |
| 77TH STREET DEPOT FEDERAL CREDIT UNION5401 S Wentworth Ave Ste 26 CHICAGO, IL 60609-6300 | Multiple common bond - Primarily transportation | $19,288,643 |
| A.A.E.C. CREDIT UNION1104 S Arlington Heights Rd ARLINGTON HEIGH, IL 60005-3141 | State chartered natural person | $92,193,694 |
| A.S.H. EMPLOYEES CREDIT UNIONPO BOX 644 ANNA, IL 62906 | State chartered natural person | $4,868,996 |
| ABBOTT LABORATORIES CREDIT UNION325 Tri State Pkwy GURNEE, IL 60031 | State chartered natural person | $948,904,124 |
| ABRI CREDIT UNION1350 W Renwick Rd ROMEOVILLE, IL 60446-5345 | State chartered natural person | $378,256,293 |
| ACCESS CREDIT UNION1807 W CERMAK RD BROADVIEW, IL 60155 | State chartered natural person | $59,293,445 |
| ACME CONTINENTAL CREDIT UNION13601 S Perry Ave RIVERDALE, IL 60827-1655 | State chartered natural person | $54,065,954 |
| ADM CREDIT UNION3695 E William Street Rd DECATUR, IL 62521 | State chartered natural person | $16,285,993 |
| ADVANTAGE ONE CREDIT UNION204 N Jackson St MORRISON, IL 61270 | State chartered natural person | $23,544,738 |
| ALDERSGATE FEDERAL CREDIT UNIONPO Box 1790 MARION, IL 62959 | Associational - Religious, other than those designated 'low-income' | $7,669,431 |
| ALLIANT CREDIT UNION11545 W TOUHY AVE CHICAGO, IL 60666 | State chartered natural person | $13,540,768,428 |
| ALTON MUNICIPAL EMPLOYEES FEDERAL CREDIT UNION3212 COLLEGE AVE ALTON, IL 62002 | Federal, State, Local Government | $603,398 |
| ALTONIZED COMMUNITY FEDERAL CREDIT UNIONP.O. BOX 246 ALTON, IL 62002 | Community credit unions, urban or rural, other than those designated 'low income' | $46,181,606 |
| AMBRAW FEDERAL CREDIT UNIONPO Box 119 LAWRENCEVILLE, IL 62439 | Community credit unions, urban or rural, other than those designated 'low income' | $14,165,162 |
| ANCO COMMUNITY CREDIT UNION154 3rd St LA SALLE, IL 61301-2312 | State chartered natural person | $12,123,134 |
| ARCHER HEIGHTS CREDIT UNION6554 W ARCHER AVE CHICAGO, IL 60638 | State chartered natural person | $21,190,322 |
| AREA EDUCATIONAL CREDIT UNION812 CHARLESTON AVE MATTOON, IL 61938 | State chartered natural person | $27,931,090 |
| AURORA FIREFIGHTERS' CREDIT UNION88 N La Salle St AURORA, IL 60505-3333 | State chartered natural person | $2,215,152 |