Datasets
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Respiratory Virus Wastewater Surveillance
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 causes... -
Food Inspections
This information is derived from inspections of restaurants and other food establishments in Chicago from January 1, 2010 to the present. Inspections are performed by staff from... -
Speed Camera Locations
This dataset shows the location, first operational date, and approaches of the speed cameras in the City of Chicago. The approach describes the originating direction of travel... -
Chicago Traffic Tracker - Historical Congestion Estimates by Segment - 2024-Current
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 records are in... -
Micro-Market Recovery Program - Permits
The City of Chicago launched the Micro-Market Recovery Program (MMRP), a coordinated effort among the City, not-for-profit intermediaries, and non-profit and for-profit capital... -
Public Health Department Events
List of public events sponsored or supported by the Chicago Department of Public Health. -
Street Sweeping Zones - 2026
Street sweeping zones by Ward and Ward Section Number. For the corresponding schedule, see https://data.cityofchicago.org/d/u5ai-3efk. For more information about the City's... -
Lobbyist Data - Lobbyist, Employer, Client Combinations
Each unique combination of a lobbyist, his/her employer, and a client of that employer. This dataset can be used to see relationships between these three entities. Each has a... -
COVID-19 Vaccination Coverage, ZIP Code
NOTE: This dataset replaces a previous one. Please see below. Chicago residents who are up to date with COVID-19 vaccines by ZIP Code, based on the reported home address and age... -
Building Violations
Violations issued by the Department of Buildings from 2006 to the present. Lenders and title companies, please note: These data are historical in nature and should not be relied... -
Additional Dwelling Unit Preapproval Applications
Applications for preapprovals for Additional Dwelling Units (ADUs) received by the Department of Housing pursuant to the December 2020 ADU Ordinance. After issuance of an ADU... -
Red Light Camera Locations
This dataset shows the location, first operational date, and approaches of the red light cameras in the City of Chicago. The approach describes the originating direction of... -
Chicago Traffic Tracker - Historical Congestion Estimates by Segment - 2018-2023
This dataset contains the historical estimated congestion for over 1,000 traffic segments, starting in approximately 2/28/2018 and ending 9/8/2023. Older records are in... -
FOIA Request Log - Public Building Commission
FOIA requests received by the Public Building Commission since 2015. -
FOIA Request Log - Cultural Affairs & Special Events
FOIA requests received by the Chicago Department of Cultural Affairs & Special Events (DCASE) as of January 2023. -
Traffic Crashes - Vision Zero Chicago Traffic Fatalities
Traffic fatalities within the City of Chicago that are included in Vision Zero Chicago (VZC) statistics. Vision Zero is Chicago’s commitment to eliminating fatalities and... -
Building Code Scofflaw List
Chicago's Building Code Scofflaw Ordinance (Section 2-92-416 of the Municipal Code of Chicago) prohibits the owners of buildings that are identified as "priority buildings with... -
Workforce Vacancies
Personnel occupancy and vacancy by position. About the Dataset: The data have been extracted from the City of Chicago's Chicago Integrated Personnel and Payroll System (CHIPPS).... -
Chicago Traffic Tracker - Historical Congestion Estimates by Segment - 2011-2018
This dataset contains the historical estimated congestion for 1270 traffic segments, in selected time periods from August 2011 to May 2018. Newer records are in... -
FOIA Request Log - Planning and Development
FOIA requests received as of January 3, 2011 by the Department of Planning and Development (Department of Housing and Economic Development prior to January 2014).