Organized in 1916, the American Red Cross Southern Arizona Chapter serves more than 1.3 million residents in a five county area, including Cochise, Graham, Greenlee, Pima, and Santa Cruz counties. The chapter is headquartered in Tucson and offers a service center in Sierra Vista, Arizona. Through the combined efforts of 500 volunteer staff and 20 paid staff, the Chapter provides services for disaster victims, health and safety instruction, and social services for members of the military and their families.