Cicero, a suburb of Chicago, is an incorporated town in Cook County, Illinois, United States. The population was 83,891 at the 2010 census. As of 2013, the town had a total population of 84,103, making it the tenth-largest municipality in Illinois. Cicero is named for the town of Cicero, New York, which in turn was named for Marcus Tullius Cicero, the Roman statesman and orator.