File:Map of city of Chicago Ward System by population 1904.jpg|thumb|Map of city of Chicago ward system in 1904. Wards with lower populations have larger boundaries. External link: current map of Chicago wards|240x240px Chicago has been divided into wards since 1837, beginning with 6 wards. Until 1923, each ward elected two members to the city council. In 1923, the system that exists today was adopted with 50 wards, each with one council member elected by the ward. In accordance with Illinois state law, ward borders must be shifted after every
federal census. This law is intended to give the population of the ward equal representation based by the size of the
population of Chicago. Chicago is unusual among major United States cities in the number of wards and representative alderpersons that it maintains. It has been noted that the current ward system promotes
diverse ethnic and cultural representation on the city council. In June 2021, the state of Illinois adopted a statute that changed the title of City Council members to
alderperson (plural:
alderpersons), replacing the gendered term
aldermen. However, some members of City Council continue to use the term
alderman or instead use
alderwoman or
alder.
Corruption Chicago City Council Chambers has long been the center of
public corruption in Chicago. The first conviction of Chicago alderpersons and Cook County Commissioners for accepting bribes to rig a crooked contract occurred in 1869. Between 1973 and 2012, 31 alderpersons were convicted of corruption. Approximately 100 alderpersons served in that period, which is a conviction rate of about one-third. Fourteen of the Chicago's City Council's nineteen committees routinely violated the Illinois Open Meetings Act during the last four months of 2007 by not keeping adequate written records of their meetings. Chicago City Council committees violated the Illinois Open Meetings Act and their own rules by meeting and taking actions without a quorum at least four times over the same four-month span. Over half of elected Chicago alderpersons took illegal campaign contributions totalling $282,000 in 2013. ==Election==