Tucson Old Pueblo Credit Union opened its doors in 1935 with 19 members and $30.75 in assets. Established by Tucson firefighters and City employees, TOPCU was originally located at Fire Station #1 in downtown Tucson. Through the years TOPCU has expanded services and its field of membership to become an important part of Tucson’s financial marketplace. Today TOPCU serves more than 18k members with over $209 million in assets. While we remain committed to our founding philosophy of Serving Those Who Serve, we also strive to keep pace with the changing technology and services to better serve all of our members.