GCS Credit Union
618.797.7993
GCS is a full service financial institution serving the following counties in Illinois: Madison, St. Clair, Jersey, Macoupin, Montgomery, Bond, Clinton, Washington, Randolph, and Monroe.

GCS Credit Union Locations

Phone Number

(618) 797-7993

O'Fallon

1119 S. Lincoln Ave.
O'Fallon, IL 62269

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 Federal 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.

Granite City

3970 Maryville Road
Granite City, IL 62040

Alton

4150 Humbert Road
Alton, IL 62002

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

Madison Location

1833 3rd Street.
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

Hours

  • Monday 8:30am — 5:00pm
  • Tuesday 8:30am — 5:00pm
  • Wednesday 10:00am — 5:00pm
  • Thursday 8:30am — 5:00pm
  • Friday 8:30am — 6:00pm
  • Saturday 8:30am — 12:00pm