AndreaBozzo/ceres-open-data-index huggingface dataset:
COPA Cases - Summary

Complaints received by the Civilian Office of Police Accountability and its predecessor agency. Each complaint is represented by a single line. When multiple people are involved, values for each of them are separated by the | character. In all such columns, the people are presented in the same order. For example, the first value in one column corresponds to the same person as the first value in another column. Other than identifying the Log Number associated with an investigation being conducted by the Bureau of Internal Affairs section of the Chicago Police Department, information regarding such investigations is not included in this data set.
COPA Cases - By Complainant or Subject

Complaints received by the Civilian Office of Police Accountability and its predecessor agency. A case will generate multiple rows, sharing the same LOG_NO if there are multiple complainants or subjects. Each row in this dataset is a complainant or subject in a specific case. Other than identifying the Log Number associated with an investigation being conducted by the Bureau of Internal Affairs section of the Chicago Police Department, information regarding such investigations is not included in this data set.
Cooling Centers

Cooling Centers offer residents air-conditioned refuge from oppressive summer heat. The City of Chicago’s cooling center network is made up of facilities operated by Department of Family & Support Services, Chicago Public Libraries, Chicago Park District, Chicago Police Department, and City Colleges of Chicago. Some facilities are activated only during periods of extreme heat or when conditions warrant. Please note that holidays may impact operating hours for certain facilities. You may call 3-1-1 to confirm the currently operating cooling centers. For more information on Park District cooling resources, including pools, beaches, water playgrounds, and water spray features, please visit: www.chicagoparkdistrict.com/cooling-centers.
Contracts

Contracts and modifications awarded by the City of Chicago since 1993. This data is currently maintained in the City’s Financial Management and Purchasing System (FMPS), which is used throughout the City for contract management and payment. Legacy System Records: Purchase Order/Contract Numbers that begin with alpha characters identify records imported from legacy systems. Records with a null value in the Contract Type field were imported from legacy systems. "Comptroller-Other" Contract Type: Some records where the Contract Type is "COMPTROLLER-OTHER" are ordinance-based agreements and may have start dates earlier than 1993. Depends Upon Requirements Contracts: If the contract Award Amount is $0, the contract is not cancelled, and the contract is a blanket contract, then the contract award total Depends Upon Requirements. A Depends Upon Requirements contract is an indefinite quantities contract in which the City places orders as needed and the vendor is not guaranteed any particular contract award amount. Blanket vs. Standard Contracts: Only blanket contracts (contracts for repeated purchases) have FMPS end dates. Standard contracts (for example, construction contracts) terminate upon completion and acceptance of all deliverables. These dates are tracked outside of FMPS. Negative Modifications: Some contracts are modified to delete scope and money from a contract. These reductions are indicated by negative numbers in the Award Amount field of this dataset. Data Owner: Procurement Services. Time Period: 1993 to present. Frequency: Data is updated daily.
Contractor Business Diversity Program Submissions

Under Executive Order [2021-2], many City of Chicago contractors are required to submit annual reports on their Business Diversity Programs (BDPs), if any. This dataset lists those businesses that have such programs. Contractors who did not indicate formal BDPs but indicated related efforts through other portions of their responses are included. For more information on the BDP effort or to submit a response for your business, please visit https://chicago.gov/bdp.
City-Owned Land Inventory

Note, 5/29/2026: We have added an Application Opens column. -- Property currently or historically owned and managed by the City of Chicago. Information provided in the database, or on the City’s website generally, should not be used as a substitute for title research, title evidence, title insurance, real estate tax exemption or payment status, environmental or geotechnical due diligence, or as a substitute for legal, accounting, real estate, business, tax or other professional advice. The City assumes no liability for any damages or loss of any kind that might arise from the reliance upon, use of, misuse of, or the inability to use the database or the City’s web site and the materials contained on the website. The City also assumes no liability for improper or incorrect use of materials or information contained on its website. All materials that appear in the database or on the City’s web site are distributed and transmitted "as is," without warranties of any kind, either express or implied as to the accuracy, reliability or completeness of any information, and subject to the terms and conditions stated in this disclaimer. The following columns were added 4/14/2023: - Sales Status - Sale Offering Status - Sale Offering Reason - Square Footage - City Estimate - Land Value (2022) -- Note: The year will change over time. The following columns were added 3/19/2024: - Application Use - Grouped Parcels - Application Deadline - Offer Round - Application URL
Christmas Tree Recycling Locations 2014

Locations provided by the city to recycle Christmas trees from January 4 through January 18, 2014. For more information, see http://www.cityofchicago.org/city/en/depts/streets/provdrs/streets_san/news/2013/dec/city-of-chicago-to-offer-christmas-tree-recycling-at-23-citywide.html
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 https://data.cityofchicago.org/d/sxs8-h27x. The most recent estimate for each segment is in https://data.cityofchicago.org/d/n4j6-wkkf. The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (non-freeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every 10 minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimates by traffic segments gives observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for a relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. Speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions.
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 https://data.cityofchicago.org/d/77hq-huss. Newer records are in https://data.cityofchicago.org/d/4g9f-3jbs. The most recent estimate for each segment is in https://data.cityofchicago.org/d/n4j6-wkkf. The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (non-freeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every 10 minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimates by traffic segments gives observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for a relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. Speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions.
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 https://data.cityofchicago.org/d/sxs8-h27x. The most recent estimate for each segment is in https://data.cityofchicago.org/d/n4j6-wkkf. The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (non-freeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every 10 minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimates by traffic segments gives observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for a relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. Speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions. Current estimates of traffic congestion by region are available at http://bit.ly/Vz3rIh.
Chicago Traffic Tracker - Historical Congestion Estimates by Region - 2018-Current

This dataset contains the historical estimated congestion for the 29 traffic regions, starting in approximately March 2018. Older records are in https://data.cityofchicago.org/d/emtn-qqdi. The most recent estimates for each segment are in https://data.cityofchicago.org/d/t2qc-9pjd. The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (non-freeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every 10 minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimates by traffic segments gives observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for a relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. Speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions. Current estimates of traffic congestion by region are available at http://bit.ly/103beCf.
Chicago Traffic Tracker - Historical Congestion Estimates by Region - 2013-2018

This dataset contains the historical estimated congestion for the 29 traffic regions, from January 2013 to May 2018. Newer records are in https://data.cityofchicago.org/d/sxs8-h27x. The most recent estimates for each region are in https://data.cityofchicago.org/d/t2qc-9pjd. The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (non-freeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every 10 minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimates by traffic segments gives observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for a relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. Speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions. Current estimates of traffic congestion by region are available at http://bit.ly/103beCf.
Chicago Traffic Tracker - Congestion Estimates by Segments

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 https://tas.chicago.gov, click the About button at the bottom of the page, and then the MAP LAYERS tab. The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (nonfreeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every ten minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimate by traffic segments gives the observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). This dataset contains the current estimated speed for about 1250 segments covering 300 miles of arterial roads. There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions.
Chicago Traffic Tracker - Congestion Estimates by Regions

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 button at the bottom of the page, and then the MAP LAYERS tab. The Chicago Traffic Tracker estimates traffic congestion on Chicago’s arterial streets (non-freeway streets) in real-time by continuously monitoring and analyzing GPS traces received from Chicago Transit Authority (CTA) buses. Two types of congestion estimates are produced every 10 minutes: 1) by Traffic Segments and 2) by Traffic Regions or Zones. Congestion estimates by traffic segments gives observed speed typically for one-half mile of a street in one direction of traffic. Traffic Segment level congestion is available for about 300 miles of principal arterials. Congestion by Traffic Region gives the average traffic condition for all arterial street segments within a region. A traffic region is comprised of two or three community areas with comparable traffic patterns. 29 regions are created to cover the entire city (except O’Hare airport area). There is much volatility in traffic segment speed. However, the congestion estimates for the traffic regions remain consistent for a relatively longer period. Most volatility in arterial speed comes from the very nature of the arterials themselves. Due to a myriad of factors, including but not limited to frequent intersections, traffic signals, transit movements, availability of alternative routes, crashes, short length of the segments, etc. Speed on individual arterial segments can fluctuate from heavily congested to no congestion and back in a few minutes. The segment speed and traffic region congestion estimates together may give a better understanding of the actual traffic conditions.
Chicago Public Schools - Safe Passage Routes SY2324

Chicago Public Schools, in partnership with parents, the Chicago Police Department (CPD) and City of Chicago, has expanded the District's successful Safe Passage Program to provide safe routes to and from school every day for your child. This map presents the Safe Passage Routes specifically designed for designated schools during the 2023-2024 school year. 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 Public Schools - Safe Passage Routes SY2122

Chicago Public Schools, in partnership with parents, the Chicago Police Department (CPD) and City of Chicago, has expanded the District's successful Safe Passage Program to provide safe routes to and from school every day for your child. This map presents the Safe Passage Routes specifically designed for designated schools during the 2021-2022 school year. 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 Public Schools - Middle School Attendance Boundaries SY2526

Attendance boundaries for middle schools in the Chicago Public Schools district for school year 2025-2026. Note: only 22 middle schools have attendance boundaries in school year 2025-2026. Middle school boundaries are often established to relieve overcrowding at nearby elementary schools. Generally, all students in the applicable middle school grades who live within one of these boundaries may attend the school. 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 Public Schools - Middle School Attendance Boundaries SY2425

Attendance boundaries for middle schools in the Chicago Public Schools district for school year 2024-2025. Note: only 22 middle schools have attendance boundaries in school year 2024-2025. Middle school boundaries are often established to relieve overcrowding at nearby elementary schools. Generally, all students in the applicable middle school grades who live within one of these boundaries may attend the school. 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 Public Schools - Middle School Attendance Boundaries SY2324

Attendance boundaries for middle schools in the Chicago Public Schools district for school year 2023-2024. Note: only 22 middle schools have attendance boundaries in school year 2023-2024. Middle school boundaries are often established to relieve overcrowding at nearby elementary schools. Generally, all students in the applicable middle school grades who live within one of these boundaries may attend the school. 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 Public Schools - Middle School Attendance Boundaries SY2223

Attendance boundaries for middle schools in the Chicago Public Schools district for school year 2022-2023. Note: only 24 middle schools have attendance boundaries in school year 2022-2023. Middle school boundaries are often established to relieve overcrowding at nearby elementary schools. Generally, all students in the applicable middle school grades who live within one of these boundaries may attend the school. 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.