AndreaBozzo/ceres-open-data-index huggingface dataset:
COVID-Like Illness (CLI) and COVID-19 Diagnosis Emergency Department Visits - Historical

NOTE: This dataset is no longer being updated but is being kept for historical reference. For current data on respiratory illness visits and respiratory laboratory testing data please see <a href="https://data.cityofchicago.org/Health-Human-Services/Influenza-COVID-19-RSV-and-Other-Respiratory-Virus/qgdz-d5m4">Influenza, COVID-19, RSV, and Other Respiratory Virus Laboratory Surveillance</a> and <a href="https://data.cityofchicago.org/en/Health-Human-Services/Inpatient-Emergency-Department-and-Outpatient-Visi/7ce8-bpr6">Inpatient, Emergency Department, and Outpatient Visits for Respiratory Illnesses</a>. 

This is the place to look for important information about how to use this dataset, so please expand this box and read on!

This is the source data for some of the metrics available at https://www.chicago.gov/city/en/sites/covid-19/home/reopening-chicago.html#reopeningmetrics.

For all datasets related to COVID-19, see https://data.cityofchicago.org/browse?limitTo=datasets&sortBy=alpha&tags=covid-19.

The National Syndromic Surveillance Program (NSSP), a collaboration among CDC, federal partners, local and state health departments, and academic and private sector partners, is used to capture information during an Emergency Department (ED) visit.  ED data can include information that are collected before cases are diagnosed or laboratory results are confirmed, providing an early warning system for infections, like COVID-19. 

This dataset includes reports of COVID-19-Like illness (CLI) and COVID-19 diagnosed during an ED visit. CLI is defined as fever and cough or shortness of breath or difficulty breathing with or without the presence of a coronavirus diagnosis code. Visits meeting the CLI definition that also have mention of flu or influenza are excluded. 

This dataset also includes ED visits among persons who have been diagnosed or laboratory confirmed to have COVID-19. During the initial months of the COVID-19 pandemic COVID-19 diagnoses counts are artificially low, due to varying eligibility requirements and availability of testing.

Over the course of the COVID-19 pandemic, public health best practices migrated from focusing on CLI to focusing on diagnosed cases. This dataset originally contained only CLI columns. In June 2021, the diagnosis columns were added, back filled to the start of the pandemic but with the caveat noted above. Roughly simultaneously, updating of the CLI columns was discontinued, although previously existing data were kept. Reflecting the new columns, the name of the dataset was changed from “COVID-Like Illness (CLI) Emergency Department Visits” to “COVID-Like Illness (CLI) and COVID-19 Diagnosis Emergency Department Visits” at the same time.

Data Source: Illinois Hospital Emergency Departments reporting to CDPH through the National Syndromic Surveillance Project (NSSP)

Tags: covid-19, health, historical, link-to-article-present, public-health, syndromic-surveillance
Organization: City of Chicago
Tax Increment Financing (TIF) Investment Committee Decisions

This data includes all projects reviewed by the TIF Investment Committee (TIC), from May 2019 through December 2024. TIC reviewed requests for the use Tax Increment Financing (TIF) funds – a special funding tool used by the City of Chicago to promote public and private investment across the city – for a variety of projects including public infrastructure projects from the City departments and Sister Agencies, as well as private-sector housing and economic development projects.  TIC meetings were suspended in January 2025 and no further updates to this dataset are anticipated.

Tags: tif
Organization: City of Chicago
COVID-19 Daily Cases, Deaths, and Hospitalizations - 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, or the address, as provided by the Cook County Medical Examiner.

Cases with a positive molecular (PCR) or antigen test are included in this dataset. Cases are counted on the date the test specimen was collected. Deaths are those occurring among cases based on the day of death. Hospitalizations are based on the date of first hospitalization. Only one hospitalization is counted for each case. Demographic data are based on what is reported by medical providers or collected by CDPH during follow-up investigation.

Because of the nature of data reporting to CDPH, hospitalizations will be blank for recent dates They will fill in on later updates when the data are received, although, as for cases and deaths, may continue to be updated as further data are received. 

All data are provisional and subject to change. Information is updated as additional details are received and it is, in fact, very common for recent dates to be incomplete and to be updated as time goes on. At any given time, this dataset reflects data currently known to CDPH.

Numbers in this dataset may differ from other public sources due to definitions of COVID-19-related cases, deaths, and hospitalizations, sources used, how cases, deaths and hospitalizations are associated to a specific date, and similar factors.

Data Source: Illinois National Electronic Disease Surveillance System, Cook County Medical Examiner’s Office

Tags: covid-19, death, ethnicity, gender, health, historical, link-to-article-present, public-health, race
Organization: City of Chicago
Financial Incentive Projects - Neighborhood Opportunity Fund (NOF) Large

Neighborhood Opportunity Fund, Large Project data includes all projects that have received a final grant payment. Large Projects have grants over $250,000 and are required to obtain City Council approval, as well as have a full Redevelopment Agreement governing the terms of the grant. The Neighborhood Opportunity Fund (“NOF”) receives funds from downtown development in order to support the growth and creation of inclusively vibrant commercial corridors in Chicago’s underserved neighborhoods. Business and property owners may apply for grant funding that will pay for the development or rehabilitation of real estate and projects that support new or expanding businesses or cultural assets.

Tags: financial, financial-incentive, incentive, nof
Organization: City of Chicago
Transportation Network Providers - Drivers

<b>Note, 7/29/2025:</b> Please see https://data.cityofchicago.org/stories/s/mpqt-6a2q for information on a data correction.

All drivers reported by Transportation Network Providers (sometimes called rideshare companies) to the City of Chicago as part of the licensing process and routine reporting required by ordinance. Inclusion of a driver in a monthly report indicates that the driver was eligible for trips in Chicago in that month for at least one day, regardless of whether he or she actually provided any rides. If a driver is eligible in multiple months, which is common, he or she will have records in each of these reporting months. 

As of the creation of this dataset, there have been four TNPs licensed to operate in Chicago, although never more than three at any given time and currently three. Drivers reported by more than one company in the same month are combined and the MULTIPLE_TNPS column is marked as TRUE. However, the matching process is imperfect so not all such drivers are necessarily identified. Similarly, matching between the licensing and routine reporting databases is imperfect, creating potential for occasional errors.

The reporting is done on a monthly basis, as indicated in the MONTH_REPORTED column. However, starting in 2018, the reports are batched and files for all three months in a quarter are delivered to the City of Chicago at the end of each quarter. Due to an issue in this transition, some vehicle records for Q2 2018 (April-June) were reported for the quarter as a whole, rather than for individual months. For purposes of this dataset, those records have been assigned to 2018-06 (June). Therefore, some caution in interpreting this month and the quarter as a whole is advised.

Tags: drivers, rideshare, tnp, transportation, transportation-network-provider
Organization: City of Chicago
Libraries - 2026 Holds Placed by Location

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 outages.

Tags: 2026, holds-placed, libraries
Organization: City of Chicago
Financial Incentive Projects - (TIF-Funded) Economic Development

This dataset includes detailed information regarding the use of TIF for all economic development projects with a City Council approved TIF redevelopment agreements (RDAs) since January, 2011. This does not include approved RDAs for affordable housing, approved intergovernmental agreements (IGAs), or TIF-funded public infrastructure.  For more information on the Tax Increment Financing program including a full list of all TIF-funded projects, please see http://cityofchicago.org/tif.

Tags: financial, financial-incentive, incentive, tif
Organization: City of Chicago
311 Service Requests - Graffiti Removal - Historical

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 https://data.cityofchicago.org/d/v6vf-nfxy. This dataset is historical-only.

All open graffiti removal requests made to 311 and all requests completed since January 1, 2011. The Department of Streets & Sanitation's Graffiti Blasters crews offer a vandalism removal service to private property owners. Graffiti Blasters employ "blast" trucks that use baking soda under high water pressure to erase painted graffiti from brick, stone and other mineral surfaces. They also use paint trucks to cover graffiti on the remaining surfaces. Organizations and residents may report graffiti and request its removal.
311 sometimes receives duplicate requests for graffiti removal. Requests that have been labeled as Duplicates are in the same geographic area and have been entered into 311’s Customer Service Requests (CSR) system at around the same time as a previous request. Duplicate reports/requests are labeled as such in the Status field, as either "Open - Dup" or "Completed - Dup." Data is updated daily.

Tags: 311, graffiti, historical, service-requests
Organization: City of Chicago
Libraries - 2026 Visitors by Location

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 due to heating or air conditioning issues, or area power outages.

* Count does not reflect the total building visitor count due to location of traffic counter. Community room and program traffic are not included in totals.

Tags: 2026, libraries, visitors
Organization: City of Chicago
COVID-19 Daily Rolling Average Case, Death, and Hospitalization Rates - Historical

NOTE: This dataset has been retired and marked as historical-only.

This dataset is a companion to the COVID-19 Daily Cases and Deaths dataset (https://data.cityofchicago.org/d/naz8-j4nc). The major difference in this dataset is that the case, death, and hospitalization corresponding rates per 100,000 population are not those for the single date indicated. They are rolling averages for the seven-day period ending on that date. This rolling average is used to account for fluctuations that may occur in the data, such as fewer cases being reported on weekends, and small numbers.  The intent is to give a more representative view of the ongoing COVID-19 experience, less affected by what is essentially noise in the data.

All rates are per 100,000 population in the indicated group, or Chicago, as a whole, for “Total” columns.

Only Chicago residents are included based on the home address as provided by the medical provider.

Cases with a positive molecular (PCR) or antigen test are included in this dataset. Cases are counted based on the date the test specimen was collected. Deaths among cases are aggregated by day of death. Hospitalizations are reported by date of first hospital admission. Demographic data are based on what is reported by medical providers or collected by CDPH during follow-up investigation.

Denominators are from the U.S. Census Bureau American Community Survey 1-year estimate for 2018 and can be seen in the Citywide, 2018 row of the Chicago Population Counts dataset (https://data.cityofchicago.org/d/85cm-7uqa).

All data are provisional and subject to change. Information is updated as additional details are received and it is, in fact, very common for recent dates to be incomplete and to be updated as time goes on. At any given time, this dataset reflects cases and deaths currently known to CDPH.

Numbers in this dataset may differ from other public sources due to definitions of COVID-19-related cases and deaths, sources used, how cases and deaths are associated to a specific date, and similar factors.

Data Source: Illinois National Electronic Disease Surveillance System, Cook County Medical Examiner’s Office, U.S. Census Bureau American Community Survey

Tags: covid-19, death, ethnicity, gender, health, historical, hospitalization, link-to-article-present, public-health, race
Organization: City of Chicago
Libraries - 2026 Circulation by Location

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 conditioning issues, or area power outages.

Tags: 2026, circulation, libraries
Organization: City of Chicago
Employee Payroll Data (FMPS Payroll Costing)

<b>Note, 7/10/2025:</b> Please see <a href="https://data.cityofchicago.org/stories/s/9xt4-tpk3" target="_blank">this article</a> for information on a change to the EMPLOYEE DATASET ID column and <a href="https://data.cityofchicago.org/stories/s/gysr-yw27" target="_blank">this article</a> for information on a data correction.

Welcome to the official source for Employee Payroll Costing data for the City of Chicago.  This dataset offers a clean, comprehensive view of the City's payroll information by employee.  

About the Dataset:
This has been extracted from the City of Chicago's Financial Management and Purchasing System (FMPS).  
FMPS is the system used to process all financial transactions made by the City of Chicago, ensuring accuracy and transparency in fiscal operations.
This dataset includes useful details like employee name, pay element, pay period, fund, appropriation, department, and job title. 
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Data Disclaimer:
The following data disclaimer governs your use of the dataset extracted from the Payroll Costing module of the City of Chicago's Financial Management and Purchasing System (FMPS) or (FMPS Payroll Costing).

Point-in-Time Extract:
The dataset provided herein, represents a point-in-time extract from the FMPS Payroll Costing module and may not reflect real-time or up-to-date data.

Financial Statement Disclaimer – Timeframe and Limitations:
This dataset is provided without audit. It is essential to note that this dataset is not a component of the City's Annual Comprehensive Financial Report (ACFR). As such, it remains preliminary and is subject to the end-of-year reconciliation process inherent to the City's annual financial procedures outlined in the ACFR.

Note on Pay Elements:
All pay elements available in the FMPS Payroll Costing module have been included in this dataset. 
Previously published datasets, such as "Employee Overtime and Supplemental Earnings," contained only a subset of these pay elements.

Payroll Period:
The dataset's timeframe is organized into 24 payroll periods. It is important to understand that these periods may or may not directly correspond to specific earnings periods.

Aggregating Data:
The CIty of Chicago often has employees with the same name (including middle initials).  It is vital to use the unique employee identifier code (EMPLOYEE DATASET ID) when aggregating at the employee level to avoid duplication. 

Data Subject to Change:
This dataset is subject to updates and modifications due to the course of business, including activities such as canceling, adjusting, and reissuing checks.

Data Disclosure Exemptions:
Information disclosed in this dataset is subject to FOIA Exemption Act, 5 ILCS 140/7 (Link:https://www.ilga.gov/legislation/ilcs/documents/000501400K7.htm)

Tags: overtime, payroll, personnel, supplemental-earnings
Organization: City of Chicago
Transportation Network Providers - Vehicles

All vehicles reported by Transportation Network Providers (sometimes called rideshare companies) to the City of Chicago as part of routine reporting required by ordinance.  Inclusion of a vehicle in a monthly report indicates that the vehicle was eligible for trips in Chicago in that month for at least one day, regardless of whether it actually provided any rides. If a vehicle is eligible in multiple months, which is common, it will have records in each of these reporting months. 

As of the creation of this dataset, there have been four TNPs licensed to operate in Chicago, although never more than three at any given time and currently three. Vehicles reported by more than one company in the same month are combined and the MULTIPLE_TNPS column is marked as TRUE. However, the matching process is imperfect so not all such vehicles are necessarily identified.  

Information on last inspection date was not required before September 2017 so will not be found in older records.  

The reporting is done on a monthly basis, as indicated in the MONTH_REPORTED column. However, starting in 2018, the reports are batched and files for all three months in a quarter are delivered to the City of Chicago at the end of each quarter. Due to an issue in this transition, some vehicle records for Q2 2018 (April-June) were reported for the quarter as a whole, rather than for individual months. For purposes of this dataset, those records have been assigned to 2018-06 (June). Therefore, some caution in interpreting this month and the quarter as a whole is advised.

Tags: rideshare, tnp, transportation, transportation-network-provider, vehicles
Organization: City of Chicago
Spruce Bark Beetle Long-term Monitoring Plots in Wrangell - St. Elias National Park And Preserve,Alaska

This Data Release Report describes a dataset of 136 long-term spruce bark beetle (Dendroctonusrufipennis) monitoring plots established in Wrangell - St Elias National Park & Preserve, Alaska between July 1, 1997 and August 21, 1998.

Tags: __, alaska, and, bark, beetle, elias, long-term, monitoring, national, park, plots, preserve, spruce, st, wrangell
Organization: Department of the Interior
311 Service Requests - Garbage Carts - Historical

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 https://data.cityofchicago.org/d/v6vf-nfxy. This dataset is historical-only.

All open garbage cart requests made to 311 and all requests completed since January 1, 2011. The City of Chicago provides heavy-duty plastic 96-gallon garbage carts to single-family residences and apartment buildings of four units or less. Residents may request new carts when none are present, or replacement carts for ones which have gone missing or been damaged.     
311 sometimes receives duplicate requests for garbage carts. Requests that have been labeled as Duplicates are in the same geographic area and have been entered into 311’s Customer Service Requests (CSR) system at around the same time as a previous request. Duplicate reports/requests are labeled as such in the Status field, as either "Open - Dup" or "Completed - Dup." Data is updated daily.

Tags: 311, garbage, historical, service-requests
Organization: City of Chicago
311 Service Requests - Rodent Baiting - Historical

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 https://data.cityofchicago.org/d/v6vf-nfxy. This dataset is historical-only.

All open rodent baiting requests and rat complaints made to 311 and all requests completed since January 1, 2011. The Department of Streets & Sanitation investigates reported rat sightings. Alley conditions are examined. If any damaged carts are identified, Sanitation Ward Offices, which distribute the carts are notified. Rodenticide is placed in rat burrows to eradicate nests. 311 sometimes receives duplicate rat complaints and requests for rodent baiting. Requests that have been labeled as Duplicates are in the same geographic area and have been entered into 311’s Customer Service Requests (CSR) system at around the same time as a previous request. Duplicate reports/requests are labeled as such in the Status field, as either "Open - Dup" or "Completed - Dup." Data is updated daily.

Tags: 311, historical, rats, rodents, service-requests
Organization: City of Chicago
311 Service Requests - Pot Holes Reported - Historical

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 https://data.cityofchicago.org/d/v6vf-nfxy. This dataset is historical-only.

The Chicago Department of Transportation (CDOT) oversees the patching of potholes on over 4,000 miles of arterial and residential streets in Chicago. CDOT receives reports of potholes through the 311 call center and uses a computerized mapping and tracking system to identify pothole locations and efficiently schedule crews.  One call to 311 can generate multiple pothole repairs. When a crew arrives to repair a 311 pothole, it fills all the other potholes within the block.  Pothole repairs are generally completed within 7 days from the first report of a pothole to 311. Weather conditions, particularly frigid temps and precipitation, influence how long a repair takes.  On days when weather is cooperative and there is no precipitation, crews can fill several thousand potholes.  

If a previous request is already open for a buffer of 4 addresses the request is given the status of "Duplicate (Open)".  For example, if there is an existing CSR for 6535 N Western and a new request is received for 6531 N Western (which is within four addresses of the original CSR) then the new request is given a status of "Duplicate (Open)".

Once the street is repaired, the status in CSR will read “Completed” for the original request and "Duplicate (Closed)" for any duplicate requests.  A service request also receives the status of “Completed” when the reported address is inspected but no potholes are found or have already been filled.  If another issue is found with the street, such as a “cave-in” or “failed utility cut”, then it is directed to the appropriate department or contractor. 

Data Owner: Transportation. Time Period: All open requests and all completed requests since January 1, 2011. Frequency: Data is updated daily.

Tags: 311, historical, pot-holes, service-requests, streets
Organization: City of Chicago