(65 ILCS 5/3.1-20-15) (from Ch. 24, par. 3.1-20-15)
    Sec. 3.1-20-15. Division into wards. Except as otherwise provided in Section 3.1-20-20, every city shall have one-half as many wards as the total number of aldermen to which the city is entitled. The city council, from time to time, shall divide the city into that number of wards.
(Source: P.A. 87-1119.)