Welcome to our credit union! You can find us on the corner of Harbor Boulevard and Wilson Street, located in the Home Depot® shopping center in Costa Mesa, California! San Diego County Credit Union has over 30,000 surcharge-free ATMs and over 40 branch locations all ready to serve you! Our philosophy is always that people come first and profits second, so while you get similar services and products as you would at a traditional bank, you'll never worry about big bank stakeholders and fees. SDCCU is open to everyone living or working in San Diego, Riverside or Orange counties, as well as any immediate family or household member of an existing SDCCU member. Federally insured by NCUA. Equal Housing Opportunity.