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 |
|---|---|---|
| SILGAN WHITE CAP CREDIT UNION1140 W 31st Street DOWNERS GROVE, IL 60515 | State chartered natural person | $2,992,246 |
| SIU CREDIT UNION1175 E Main St CARBONDALE, IL 62901-3126 | State chartered natural person | $543,197,494 |
| SIUE CREDIT UNION1566 Lewis Rd EDWARDSVILLE, IL 62025 | State chartered natural person | $29,339,677 |
| SMARTCHOICE CREDIT UNION1 Les Buzz Way Ste A SPRING VALLEY, IL 61362 | State chartered natural person | $802,114 |
| SOURCEONE CREDIT UNION401 S La Salle St Ste 201 CHICAGO, IL 60605 | State chartered natural person | $11,285,449 |
| SOUTH DIVISION CREDIT UNION9122 S KEDZIE AVE EVERGREEN PARK, IL 60805-1605 | State chartered natural person | $51,622,280 |
| SOUTH SHOP FEDERAL CREDIT UNION3737 W 127TH ST ALSIP, IL 60803 | Multiple common bond - Primarily transportation | $11,517,016 |
| SOUTH SIDE COMMUNITY FEDERAL CREDIT UNION5401 S Wentworth Ave CHICAGO, IL 60609-6349 | Community credit unions, urban or rural, other than those designated 'low income' | $5,377,038 |
| SPRINGFIELD CITY EMPLOYEES CREDIT UNION300 S 7th St Ste B4 SPRINGFIELD, IL 62701-1929 | State chartered natural person | $12,317,329 |
| SPRINGFIELD FIREFIGHTERS CREDIT UNION2401 N Peoria Rd SPRINGFIELD, IL 62702-1200 | State chartered natural person | $3,250,806 |
| ST. GREGORY PARISH CREDIT UNION1609 W Gregory St FL 1 CHICAGO, IL 60640-1107 | State chartered natural person | $426,262 |
| ST. HELENA PARISH CREDIT UNION1425 W 112th St CHICAGO, IL 60643-3629 | State chartered natural person | $301,171 |
| ST. JUDE CREDIT UNION205 W MONROE ST FL 7 CHICAGO, IL 60606-5060 | State chartered natural person | $283,306 |
| ST. MARK CREDIT UNION8441 S Saint Lawrence Ave CHICAGO, IL 60619-6022 | State chartered natural person | $504,730 |
| ST. MARTIN DE PORRES PARISH FEDERAL CREDIT UNION4300 W Washington Blvd CHICAGO, IL 60624 | Associational - Religious, other than those designated 'low-income' | $385,646 |
| STALEY CREDIT UNION3330 N Woodford St DECATUR, IL 62526 | State chartered natural person | $219,575,364 |
| STATE EMPLOYEES COMMUNITY CREDIT UNION4500 College Ave Ste 200 ALTON, IL 62002-5013 | State chartered natural person | $6,547,608 |
| STATE FARM FEDERAL CREDIT UNION1 State Farm Plz BLOOMINGTON, IL 61710-0001 | Service - Finance, Insurance, Real Estate, Trade | $5,102,453,334 |
| STREATOR COMMUNITY CREDIT UNION302 N Park St STREATOR, IL 61364-2229 | State chartered natural person | $38,067,628 |
| STREATOR ONIZED CREDIT UNION912 N Shabbona St STREATOR, IL 61364 | State chartered natural person | $399,797,823 |