768 datasets

Chicago Data Portal2026 · dataset

Census tract boundaries used in Chicago for the 2020 Census. This dataset is in a format 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.

Chicago Data Portal2026 · dataset

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 preapproval, the owner must obtain a building permit from the Department of Buildings before constructing an ADU. Due to changes in the underlying data, the previous version of ADU Preapproval Applications Dataset is being re

Chicago Data Portal2026 · dataset

Since 2010, influenza cases with intensive care unit (ICU) hospitalization have been reportable in Illinois. As of May 2024, ICU hospitalizations associated with RSV and COVID-19 have also become reportable conditions. All hospitals in Illinois are required to report demographic, clinical, laboratory, and epidemiological information for patients admitted to the ICU were test positive for influenza

Chicago Data Portal2026 · dataset

Street sweeping schedule by Ward and Ward section number. To find your Ward section, visit https://data.cityofchicago.org/d/nk6s-cie5. For more information about the City's Street Sweeping program, go to https://www.chicago.gov/city/en/depts/streets/provdrs/streets_san/svcs/street_sweeping2026.html. Corrections are possible during the course of the sweeping season.

Chicago Data Portal2026 · dataset

Ward precincts, which function as local election districts to determine the polling places for voters, based on their addresses. Precincts are based on U.S. Census Bureau blocks. On August 2, 2022, the Chicago Board of Election Commissioners approved this configuration of 1290 precincts, conforming to the newly redistricted Ward boundaries that had been approved by the Chicago City Council on May

Chicago Data Portal2026 · dataset

Average Daily Traffic (ADT) counts around the City of Chicago. Data are collected from over 800 traffic and speed enforcement cameras 24/7/365. Traffic counts are a by-product of these cameras that are primarily used for other operational purposes. Data from the cameras are recorded, summarized, and assigned to a street segment through the Chicago Department of Transportation's (CDOT) Advanced Tra

Chicago Data Portal2026 · dataset

The State of Illinois distributes a percentage of income tax receipts to units of local government on a population-weighted basis through the Local Government Distributive Fund (LGDF). That percentage has changed over time. This dataset shows what each unit of government received, based on that year's rate, and how much more or less it would have received under a hypothetical set of rates. The mod

Chicago Data Portal2026 · dataset

Ward precincts, which function as local election districts to determine the polling places for voters, based upon their addresses. Precincts are based on U.S. Census Bureau blocks. This version of the precincts layout was approved by the Chicago Board of Election Commissioners on December 9, 2025. The first election using this configuration of precincts is the March 17, 2026 General Primary. CHANG

Chicago Data Portal2026 · dataset

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 and over 70 neighborhood branches. Many locations experience sporadic closures to perform facilities upgrade or emergency closures due to heating or air conditioning issues, or area power outages.

Chicago Data Portal2026 · dataset

Circulation figures include new checkouts, renewals, downloadable media, Talking Book and Braille downloadable materials. Chicago Public Library consists of the Harold Washington Library Center, Sulzer, Legler and Woodson regional libraries and over 70 neighborhood branches. Many locations experience sporadic closures to perform facilities upgrade or emergency closures due to heating or air condit

Chicago Data Portal2026 · dataset

Patrons may place holds on desired materials either online or by contacting any CPL location. Chicago Public Library consists of the Harold Washington Library Center, Sulzer, Legler and Woodson regional libraries and over 70 neighborhood branches. Many locations experience sporadic closures to perform facilities upgrade or emergency closures due to heating or air conditioning issues, or area power

Chicago Data Portal2026 · dataset

he Chicago Public Library offers one-hour computer sessions and 15-minute computer sessions. Chicago Public Library consists of the Harold Washington Library Center, Sulzer, Legler and Woodson regional libraries and over 70 neighborhood branches. Many locations experience sporadic closures to perform facilities upgrade or emergency closures due to heating or air conditioning issues, or area power

Chicago Data Portal2026 · dataset

The Chicago Public Library consists of the Harold Washington Library Center, Sulzer, Legler and Woodson regional libraries and over 70 neighborhood branches. Chicago Public Library consists of the Harold Washington Library Center, Sulzer and Woodson regional libraries and over 70 neighborhood branches. Many locations experience sporadic closures to perform facilities upgrade or emergency closures

Chicago Data Portal2026 · dataset

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 libraries and over 70 neighborhood branches. Many locations experience sporadic closures to perform facilities upgrade or emergency closures due to heating or air conditioning issues, or area power outages.

Chicago Data Portal2026 · dataset

Locations where the height and weight limits of the street facilities restrict trucks and large vehicles from safely traveling through or under them. Height limits include the posted (maximum safe) height for vehicles to travel under viaducts, overpasses, bridges, CTA “L” train tracks, overhead signage, and any other structure spanning the roadway. Height limits have a single address, whereas weig

Chicago Data Portal2026 · dataset

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 sensors also collect data on black carbon (BC) and current weather conditions. Each row in this dataset reflects a single measurement from a single Clarity Node-S sensor. The data are sensor-based and not for regulatory pu

Chicago Data Portal2026 · dataset

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 sensors also collect data on black carbon (BC) and current weather conditions. 1-hour mean measurements are calculated by averaging all individual measurements collected during a specific UTC hour. For instance, the 04:00

Chicago Data Portal2026 · dataset

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 sensors also collect data on black carbon (BC) and current weather conditions. 24-hour mean measurements are calculated by averaging all measurements collected over a complete UTC day. For example, the 24-hour mean for 202

Chicago Data Portal2026 · dataset

The Annual Appropriation Ordinance is the final City operating budget as approved by the City Council. It reflects the City’s operating budget at the beginning of the fiscal year on January 1, 2026. This dataset displays the positions and related salaries detailed in the budget as of January 1. It is extracted from the personnel portion of the Appropriation Ordinance. The dataset presents the posi

Chicago Data Portal2026 · dataset

The Annual Appropriation Ordinance is the final City operating budget as approved by the City Council. It reflects the City’s operating budget at the beginning of the fiscal year on January 1, 2026. This dataset contains the revenue detail portion of the Ordinance for Local funds. “Local” funds are all funds, other than grant funds, used by the City for non-capital operations - including, but not

Chicago Data Portal2025 · dataset

Projections for each Tax Increment Financing (TIF) district over the next 10 years, as published in the "10-Year TIF Projections" report on October 15, 2025. Tax Increment Financing is a special funding tool used by the City of Chicago to promote public and private investment across the city. Funds are used to build and repair roads and infrastructure, clean polluted land, and put vacant propertie

Chicago Data Portal2025 · dataset

The dataset details 2025 Budget Recommendations, which is the line-item budget document proposed by the Mayor to the City Council for approval. Budgeted expenditures are identified by department, appropriation account, and funding type: Local, Community Development Block Grant Program (CDBG), and other Grants. “Local” funds refer to those line items that are balanced with locally-generated revenue

Chicago Data Portal2025 · dataset

This dataset contains the revenue detail portion of the 2026 Budget Recommendations for Local funds. “Local” funds are all funds, other than grant funds, used by the City for non-capital operations - including, but not limited to, the Corporate Fund, Water Fund, Midway and O’Hare Airport funds, Vehicle Tax Fund, and the Library Fund. For more information about the budget process, visit the Budget

Chicago Data Portal2025 · dataset

This dataset includes recommended positions and salaries for 2026 by title (without names) and salary. The dataset is excerpted from the 2026 Budget Recommendations, which is the line-item budget proposed by the Mayor to the City Council for approval. Disclaimer: the “Total Budgeted Unit” column displays either A) the number of employees AND vacancies associated with a given position, or B) the nu

Chicago Data Portal2025 · dataset

Attendance boundaries for high schools in the Chicago Public Schools district for school year 2025-2026. 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.