List of YMCA Stores in San Mateo, CA Outlet Note Regular Brands YMCA California San Mateo Rating 4.9 based on 52 votes Products Sports Health Child Care Camp Eductaion Social Service NameAddressPhone Name/Address/Phone YMCA outlet - San Mateo 1670 S Amphlett Blvd (650) 349-7969 YMCA outlet - San Mateo 1877 S Grant St (650) 286-9622 People Also Viewed