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City
Chicago Traffic Tracker - Congestion Estimates by Segments
City of Chicago —
This dataset contains the current estimated speed for about 1250 segments covering 300 miles of arterial roads. For a more detailed description, please go to... -
City
Employee Payroll Data (FMPS Payroll Costing)
City of Chicago —
Note, 7/10/2025: Please see this article for information on a change to the EMPLOYEE DATASET ID column and this article for information on a data correction. Welcome... -
City
Business Licenses
City of Chicago —
NOTE, 9/25/2025 - We have populated the Address column for additional records. Business licenses issued by the Department of Business Affairs and Consumer Protection... -
City
Violence Reduction - Victim Demographics - Aggregated
City of Chicago —
This dataset contains aggregate data on violent index victimizations at the quarter level of each year (i.e., January – March, April – June, July – September, October... -
City
Chicago Traffic Tracker - Historical Congestion Estimates by Segment - 2024-Current
City of Chicago —
This dataset contains the historical estimated congestion for over 1,000 traffic segments, starting 6/11/2024 (except for a single time slice on 3/8/2024). Older... -
City
Open Air Chicago Individual Measurements
City of Chicago —
Sensors deployed throughout the City by Open Air Chicago measuring fine particulate matter 2.5 (PM2.5) and nitrogen dioxide (NO2). All sensors collect data on PM2.5... -
City
311 Service Requests - Abandoned Vehicles - Historical
City of Chicago —
As described in https://data.cityofchicago.org/stories/s/311-Dataset-Changes-12-11-2018/d7nq-5g7t, the function of this dataset was replaced by... -
City
Divvy Trips
City of Chicago —
This lists individual Divvy bike sharing trips, including the origin, destination, and timestamps for each trip. Trips are included when there is an starting and end... -
City
Transportation Network Providers - Trips (2025-)
City of Chicago —
All trips, starting January 2025, reported by Transportation Network Providers (sometimes called rideshare companies) to the City of Chicago as part of routine... -
City
Metra Stations
City of Chicago —
Metra commuter rail stations in the Chicagoland region. To view or use these files, compression software and special GIS software, such as ESRI ArcGIS, is required.... -
City
Open Air Chicago Day Aggregations
City of Chicago —
Sensors deployed throughout the City by Open Air Chicago measuring fine particulate matter 2.5 (PM2.5) and nitrogen dioxide (NO2). All sensors collect data on PM2.5... -
City
Transportation Network Providers - Trips (2018 - 2022)
City of Chicago —
This dataset ends with 2022. Please see the Featured Content link below for the dataset that starts in 2023. All trips, from November 2018 to December 2022, reported... -
City
Transportation Network Providers - Drivers
City of Chicago —
Note, 7/29/2025: Please see https://data.cityofchicago.org/stories/s/mpqt-6a2q for information on a data correction. All drivers reported by Transportation Network... -
City
Liquor Moratorium Districts - Packaged Goods - Historical
City of Chicago —
NOTE: This dataset is historical-only. There are nine major classes of liquor licenses in the City of Chicago, the most common being Tavern, Package Goods and... -
City
Chicago Public Schools - School Locations SY2324
City of Chicago —
Locations of educational units in the Chicago Public Schools District for school year 2023-2024. This dataset is in a format for spatial datasets that is inherently... -
City
Chicago Traffic Tracker - Congestion Estimates by Regions
City of Chicago —
This dataset contains the current estimated congestion for the 29 traffic regions. For a detailed description, please go to https://tas.chicago.gov, click the About... -
City
Beach Lab Data
City of Chicago —
The Chicago Park District collects and analyzes water samples from beaches along Chicago’s Lake Michigan lakefront. The Chicago Park District partners with the... -
City
Chicago Park District - Event Permits
City of Chicago —
This Chicago Park District dataset includes information about event permits requested through the Chicago Park District, including the name of applicant, the name of... -
City
Respiratory Virus Wastewater Surveillance
City of Chicago —
Concentrations of respiratory viruses in the Chicago sewer system as measured at seven sewershed sites since February 2022. In addition to SARS-CoV-2 (the virus that...