Ward boundaries in Chicago from May 2015 to May 2023, corresponding to the dates when a new City Council is sworn in, based on the immediately preceding elections. Neither this description nor the dataset should be relied upon in situations where legal precision is required. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ).

List of alderman, office address, phone number, and website for all 50 Chicago wards.

To attempt to make historical versions of this dataset more available, "Dataset Changelog" is enabled at the bottom of the main page. We cannot guarantee that the archival records will remain permanently so advise downloading any you think you may want. Some intermediate versions, especially minor changes, may not be visible. The map based on this dataset will not have past versions.

Map of the ward boundaries in Chicago from May 2023 onward.

Ward boundaries in Chicago from May 2023 onward, corresponding to the dates when a new City Council is sworn in, based on the immediately preceding elections. Neither this description nor the dataset should be relied upon in situations where legal precision is required.

​​​​​This dataset is in a forma​​t for spatial datasets that is inherently tabular but allows for a map as a derived view. Please click the indicated link below for such a map.

To export the data in either tabular or geographic format, please use the Export button on this dataset.

In association with the July/August 2022 process for 43rd ward residents to apply for the opportunity to fill the aldermanic vacancy in that ward, residents were also invited to fill out an online survey, seeking their opinions on issues. The results of that survey are shown in this dataset.

Respondents were presented with eight issues plus "other" and asked to rank each one as being between Not a Priority (1) and Urgent Priority (5). There was no limit to how often each ranking could be used, although respondents were encouraged to rank only a few issues as Urgent Priority.

The final question was free text, intended to capture descriptions of "other" issues but if the respondent provided other text, it is included except in limited cases where it is redacted for privacy or similar reasons.

Please note that the survey is not and was not intended to be a random sample or otherwise scientifically or statistically valid. There were no formal barriers to people not residents of the 43rd ward responding, people responding more than once, or other things of that nature. It was intended only as a simple tool to collect such information as people cared to submit and should be interpreted in that spirit.

A copy of the original survey is at https://www.chicago.gov/content/dam/city/about/wards/ward-43-application-processs/Survey.pdf.

OUTDATED: See similar current data at https://data.cityofchicago.org/d/f4sz-sn2p. --Ward office locations for aldermen. The data can be viewed on the Chicago Data Portal with a web browser. However, to view or use the files outside of a web browser, you will need to use compression software and special GIS software, such as ESRI ArcGIS (shapefile) or Google Earth (KML or KMZ).

In association with the November 2022 process for 12th ward residents to apply for the opportunity to fill the aldermanic vacancy in that ward, residents were also invited to fill out an online survey, seeking their opinions on issues. The results of that survey are shown in this dataset.

Respondents were presented with seven issues and asked to rank them from most urgent to least urgent.

The final question was free text, intended to capture other issues but if the respondent provided other text, it is included.

Please note that the survey is not and was not intended to be a random sample or otherwise scientifically or statistically valid. There were no formal barriers to people not residents of the 12th ward responding, people responding more than once, or other things of that nature. It was intended only as a simple tool to collect such information as people cared to submit and should be interpreted in that spirit.

A copy of the original survey is at this link.

OUTDATED. See the current data at https://data.cityofchicago.org/d/htai-wnw4 -- List of alderman, office address, phone number, and website for all 50 Chicago wards. This version of the data was posted 7/2/2013 and stayed live until 7/16/2015, when it was replaced with the list of aldermen inaugurated 5/18/2015, after allowing time for most office space arrangements to be finalized.

Applicants to the 33rd Ward Alderman vacancy in 2013 with links to applications.

Aldermanic ward offices overlaid on ward boundaries.

A graphical summary of the survey responses.

Click any response value to filter all other cards for responses containing the selected response (e.g., to see how people who ranked a certain issue as Urgent ranked all other issues).

A graphical summary of the survey responses. Click any response value to filter all other cards for responses containing the selected response (e.g., to see how people who ranked a certain issue as most urgent ranked all other issues).