Martha Martinez

Chief Administrative Officer, Cook County, Ill.

Ms. Martinez began working for Cook County, Ill. in 1986. She started her career as a training coordinator in the Human Resources Department, where she also served as disability affairs coordinator. In 1992, she moved to the Chief Administrative Office, becoming first assistant to the Chief Administrative Officer in 1998. She was later appointed deputy chief administrative officer, also briefly serving as acting chief administrative officer. In the latter role, Martinez expanded the duties of the Bureau of Administration by creating a Records Management Division and oversaw the launch of the county’s Shared Fleet program. As Chief Administrative Officer of the second largest county in the U.S, she oversees numerous county departments that serve more than 5 million residents. Ms. Martinez is a graduate of Northern Illinois University.