GCS Credit Union Locations

GCS Credit Union is currently serving Sangamon, Logan, Macon, Marion, Jefferson, Perry, Jackson, Williamson, Jersey, Macoupin, Montgomery, Madison, Bond, Clinton, St. Clair, Monroe, Washington and Randolph counties.

When it comes to your checking, savings, credit cards, and loans, you will want to have a financial institution that you can trust for client-focused service and flexible financial solutions. Residents of O’Fallon and surrounding communities in St. Clair County can trust GCS Credit Union, which has been growing with the Southern Illinois region since 1941. We provide a wide range of services with the modern convenience of online and mobile banking, eStatements, and online bill pay. As a credit union, we serve our clients as members who are always the top priority for our local bankers and loan officers.

Phone Number

(618) 797-7993 O'Fallon 1119 S. Lincoln Ave. O'Fallon, IL 62269

Granite City

3970 Maryville Road Granite City, IL 62040

Alton

4150 Humbert Road Alton, IL 62002

Email Us

Email Us

Granite City Location

2001 Lee Ave., Granite City IL 62040. Contact us at (618) 797-7993. Hours: MON,TUES,THURS 8:30am-5pm WED 10am-5pm FRI 8:30am-6pm

O'Fallon Location

1119 S. Lincoln. Contact us at (618) 797-7993. Hours: MON,TUES,THURS 8:30am-5pm WED 10am-5pm FRI 8:30am-6pm

Pontoon Beach Location

4101 State Route 111 Contact us at (618) 797-7993 Hours: MON,TUES,THURS 8:30am-5pm WED 10am-5pm FRI 8:30am-6pm

Edwardsville Location

6707 Goshen Road Contact us at (618) 797-7993 Hours: MON,TUES,THURS 8:30am-5pm WED 10am-5pm FRI 8:30am-6pm

Collinsville Location

1502 Vandalia Contact us at (618) 797-7993 Hours: MON,TUES,THURS 8:30am-5pm WED 10am-5pm FRI 8:30am-6pm