CONTACT CONTACT Clay County Development Authority 1845 Town Center Blvd STE 110-B Fleming Island, FL 32003 Phone: (904) 264-7373 grow@claydevelopmentauthority.com Your name Please enter your name. Subject Please enter a subject. Your email Please enter a valid email. Your phone Please enter a valid phone number. Your message Please enter a message. Send Message Sent! Message failed. Please try again.