List of 24 Hour Fitness Stores in Castro Valley, CA Outlet Note Regular Brands 24 Hour Fitness California Castro Valley Rating 4.9 based on 76 votes Products Personal Training Health Club Exercise Classes NameAddressPhone Name/Address/Phone 24 Hour Fitness outlet - Castro Valley 3839 E Castro Valley Blvd (510) 733-6448 24 Hour Fitness outlet - Castro Valley 3939 Castro Valley Blvd (510) 733-6583 People Also Viewed