Datasets
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Deprecating Housing and Economic Development Payment Receipts Dataset - 8/4/2020
Announcement of depreciating Housing and Economic Development Payment Receipts Dataset. -
House Share Restricted Residential Zone Precincts
The Chicago City Code, Chapter 4-17, allows for shared housing rentals to be prohibited or restricted in specified precincts. This dataset shows those precincts for which such... -
Influenza Risk Level by ZIP Code
This dataset contains the weekly estimated influenza risk level for each ZIP Code in Chicago. Estimates are made during flu season, which goes from MMWR week 40 to week 20 of... -
CDPH Environmental Enforcement
Municipal and State code violation notices issued by the Department of Environment (DOE) from January, 1993 to December 31, 2012 and by the Department of Public Health (CDPH)... -
COVID-19 Cases, Tests, and Deaths by ZIP Code - Historical
NOTE: This dataset has been retired and marked as historical-only. Only Chicago residents are included based on the home ZIP Code as provided by the medical provider. If a ZIP... -
Foreclosed Rental Property
Foreclosed rental properties registered with the Chicago Department of Housing under the Keep Chicago Renting ordinance. Prior to 12/12/2022, Owner and Owner Management Agent... -
Towed Vehicles
This dataset displays location for vehicles that have been towed and impounded by the City of Chicago within the last 90 days. Illegally parked vehicles, abandoned vehicles and... -
Health Alert Network Alerts
Public alerts for the Chicago Department of Public Health's (CDPH) Health Alert Network (HAN). The HAN provides CDPH with the capacity for quick, efficient, reliable, and secure... -
Building Permits
Note, 10/15/2025: We have added a PERMIT_CONDITION column. This dataset includes information about building permits issued by the City of Chicago from 2006 to the present,... -
Neighborhoods_2012b
Neighborhood boundaries in Chicago, as developed by the Office of Tourism. These boundaries are approximate and names are not official. The data can be viewed on the Chicago... -
Current Employee Names, Salaries, and Position Titles
This dataset is a listing of all active City of Chicago employees, complete with full names, departments, positions, employment status (part-time or full-time), frequency of... -
Libraries - 2026 Holds Filled by Location
This data is for materials pulled to fulfill patron holds. Chicago Public Library consists of the Harold Washington Library Center, Sulzer, Legler and Woodson regional libraries... -
Open Air Chicago Individual Measurements
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 and NO2. Six... -
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... -
Crimes - One year prior to present
This dataset reflects reported incidents of crime (with the exception of murders where data exists for each victim) that have occurred in the City of Chicago over the past year,... -
Potholes Patched
Potholes patched. For the previous seven days in map form, see https://data.cityofchicago.org/d/caad-5j9e. -
TIF and Financial Incentive Dataset Releases and Changes - 2/11/2020
Announcement of TIF and Financial Incentive Dataset data change. -
My CHI. My Future. Programs
My CHI. My Future. is a citywide initiative to connect all youth and teens to out-of-school programs. Using this dataset, the associated map, or the MCMF site... -
Building Permits Dataset Changes - 7/9/2019
Changes made to building permits dataset. -
Libraries - 2026 WiFi Usage
The Chicago Public Library offers free WiFi at all locations. Chicago Public Library consists of the Harold Washington Library Center, Sulzer, Legler and Woodson regional...