Illinois has about 241 different credit unions with ALLIANT CREDIT UNION being the largest credit union in Illinois having more than $20.32 billion in total assets and over 941,349 members.
| Name | Membership | Total Assets |
|---|---|---|
| CORPORATE AMERICA FAMILY CREDIT UNION2075 Big Timber Rd ELGIN, IL 60123-1140 | State chartered natural person | $840,288,072 |
| CREDIT UNION 1450 E 22nd St Ste 250 LOMBARD, IL 60148-6176 | State chartered natural person | $2,293,617,968 |
| CREDIT UNION 1P.O. Box 200 RANTOUL, IL 61866 | State chartered natural person | $1,226,789,434 |
| CSX CHICAGO TERMINAL CREDIT UNION13601 S. Perry Ave RIVERDALE, IL 60827 | State chartered natural person | $3,689,255 |
| CTA - C AND M FEDERAL CREDIT UNION1011 Lake St Ste 217 OAK PARK, IL 60301-1137 | Service - Transportation | $1,466,712 |
| CTA SOUTH FEDERAL CREDIT UNION8050 S King Dr CHICAGO, IL 60619-3700 | Service - Transportation | $1,159,712 |
| CTA-74TH STREET DEPOT FEDERAL CREDIT UNION10057 S Western Ave CHICAGO, IL 60643-1925 | Service - Transportation | $9,013,205 |
| DECATUR EARTHMOVER CREDIT UNION260 W Marion Ave FORSYTH, IL 62535 | State chartered natural person | $297,941,935 |
| DECATUR MEDICAL DENTAL CREDIT UNION2721 N MAIN ST DECATUR, IL 62526 | State chartered natural person | $13,953,633 |
| DECATUR POLICEMEN CREDIT UNION707 W South Side Dr DECATUR, IL 62521 | State chartered natural person | $5,312,258 |
| DECATUR POSTAL CREDIT UNION214 N Franklin St DECATUR, IL 62523 | State chartered natural person | $6,529,946 |
| DEERE EMPLOYEES CREDIT UNION3950 38th Ave MOLINE, IL 61265-6471 | State chartered natural person | $2,197,130,269 |
| DISTRICT 123 FEDERAL CREDIT UNION10425 S Kolmar Ave OAK LAWN, IL 60453-4847 | Educational | $2,032,878 |
| DUPAGE COUNTY EMPLOYEES CREDIT UNION421 N County Farm Rd WHEATON, IL 60187-3978 | State chartered natural person | $18,268,038 |
| DUPAGE CREDIT UNION1515 Bond St NAPERVILLE, IL 60563-0112 | State chartered natural person | $566,125,233 |
| EARTHMOVER CREDIT UNION2195 Baseline Rd OSWEGO, IL 60543-6006 | State chartered natural person | $447,315,041 |
| EDUCATION PERSONNEL FEDERAL CREDIT UNION1102 N Walnut St DANVILLE, IL 61832 | Multiple common bond - Primarily educational | $71,572,685 |
| EFFINGHAM HIGHWAY CREDIT UNION400 W Wabash Ave EFFINGHAM, IL 62401-2670 | State chartered natural person | $5,591,732 |
| ELCA FEDERAL CREDIT UNION8765 W Higgins Rd CHICAGO, IL 60631 | Associational - Religious, other than those designated 'low-income' | $25,646,259 |
| ELECTROGAS CREDIT UNION700 Oakwood Ave ALTON, IL 62002 | State chartered natural person | $1,239,678 |