Who We Are
We’re glad you’re here! SourceOne is a member owned and operated credit union founded in 1932. Membership is for current and retired civilian U.S. Government Federal employees, including U.S. Postal Workers. All family members of SourceOne members are also eligible to join, including extended family.
Please consider us YOUR credit union because we value YOU!
Being a non-profit organization, SourceOne pays above market interest rates on savings and we offer very competitive rates on loans.
SourceOne is a member of the Illinois Credit Union Association and all accounts are federally insured to at least $250,000 and backed by the United States Government.
Office hours: Monday through Friday, 7:45 AM to 4:00 PM Central Time
Closed on all federal holidays.
Open Columbus Day, but closed on the Friday following Thanksgiving.
Toll Free: (866) 733-7805
Local Phone: (312) 922-0495
Fax: (312) 922-7310
Email us info -at- source1cu.com

