Cornerstone CU offers access (24 hours a day, 7 days a week) to your accounts
through Online Banking, Mobile Banking, EARS [Easy Audio Response System] our telephone teller and through our ATMs. For in-person or telephone assistance, please see our hours and maps below for each service center. Keep in mind
Holiday Closures affect our Service Center hours.
In addition, CCU is part of the CO-OP Shared Branches network, which means when you're on the go, we’re right there with you with convenient locations at more than 5,000 credit union branches nationwide—even in other countries! Learn more about Shared Branches, Just look for the CO-OP Shared Branch logo on the door. Check our Shared Branch locator site.
ATM Network
Surcharge-Free ATM Network
Take Cornerstone CU with you and access more than 4,800 surcharge-free ATMs across the U.S., including Puerto Rico.
Freeport (Main) Service Center
Freeport (Main) Service Center
550 West Meadows Drive
Freeport, IL 61032-5072
Toll Free Phone: 1-800-711-3277
Phone: (815) 235-5855
Fax: (815) 235-5970
| Mon-Tue |
9:00 am - 5:00 pm |
| Wednesday |
9:30 am - 5:00 pm |
| Thursday |
9:00 am - 5:00 pm |
| Friday |
9:00 am - 5:00 pm |
| Fri (Drive-up) |
9:00 am - 6:00 pm |
| Saturday |
9:00 am - 12:00 pm |
| Sat (Drive-up) |
9:00 am - 1:00 pm |
Sterling Service Center
Sterling Service Center
615 West 3rd Street
Sterling, IL 61081-3313
Toll Free Phone: 1-800-711-3277
Phone: se habla español
| Mon-Tue |
9:00 AM - 5:00 PM |
| Wednesday |
9:30 AM - 5:00 PM |
| Thurs-Fri |
9:00 AM - 5:00 PM |
| Fri (Drive-up) |
9:00 AM - 5:30 PM |
| Saturday |
9:00 AM - 12:00 PM |
South Beloit Service Center
South Beloit Service Center
542 Clark Street
South Beloit, IL 61080-1396
Phone: 1-800-711-3277
| Mon-Tue |
9:00 am - 5:00 pm |
| Mon-Tue (Drive-up) |
9:00 am - 5:00 pm |
| Wednesday |
9:30 am - 5:00 pm |
| Thu-Fri |
9:00 am - 5:00 pm |
| Thu (Drive-up) |
9:00 am - 5:00 pm |
| Fri (Drive-up) |
9:00 AM - 5:00 PM |
| Friday |
9:00 am - 5:00 pm |
| Saturday |
CLOSED |