Security Service Federal Credit Union, commonly shortened to SSFCU, is a federally insured, state chartered, 6 billion dollar, more than 840,000 members, natural person, credit union operating from over 65 service centers in Texas, Colorado, and Utah. Security Service is the largest credit union in San Antonio, Texas, 3rd largest in Colorado, and the 8th largest in the United States, with access to +4,000 credit union locations nationwide through CU Service Centers shared branching. The routing number for Security Service Federal Credit Union is 314088637.