List of Chicago alderpersons since 1923

The Chicago City Council assumed its modern form on April 16,[dates 1] 1923, with fifty wards each electing one alderperson.

Nevertheless, many alderpersons have had,[parties 1] and continue to have, de facto partisan affiliations that are reflected in this list.

Originally covering the Loop, Near South Side, and the northern part of Armour Square, this ward was significantly moved to its current location in 1993 to help stymie corruption.

Originally covering Douglas and its immediate surroundings, this ward has drastically moved northward to its current location across the Near North Side and West Town.

- 1987 - 1991 This ward, historically covering most of the Near North Side, has recently moved slightly south to also encompass the northern part of the Loop.