Current Location CASA of Contra Costa County 2151 Salvio Street, Suite 295 Concord, CA 94520 Phone: (925) 256-7284 , Fax: (925) 887-6770 Send Us an Email First Name: * Last Name: * Email: * Message: * Captcha * Send Your message has been sent successfully. E-mail must be valid and message must be longer than 100 characters.