AndreaBozzo/ceres-open-data-index huggingface dataset:
Sex Offenders

Description: Pursuant to the Sex Offender and Child Murderer Community Notification Law, 730 ILCS 152/101,et seq., the Chicago Police Department maintains a list of sex offenders residing in the City of Chicago who are required to register under the Sex Offender Registration Act, 730 ILCS 150/2, et seq. To protect the privacy of the individuals, addresses are shown at the block level only and specific locations are not identified. The data are extracted from the CLEAR (Citizen Law Enforcement Analysis and Reporting) system developed by the Department.
Although every effort is made to keep this list accurate and current, the city cannot guarantee the accuracy of this information. Offenders may have moved and failed to notify the Chicago Police Department as required by law. If any information presented in this web site is known to be outdated, please contact the Chicago Police Department at srwbmstr@chicagopolice.org, or mail to Sex Registration Unit, 3510 S Michigan Ave, Chicago, IL 60653.
Disclaimer: This registry is based upon the legislature's decision to facilitate access to publicly available information about persons convicted of specific sexual offenses. The Chicago Police Department has not considered or assessed the specific risk of re-offense with regard to any individual prior to his or her inclusion within this registry, and has made no determination that any individual included within the registry is currently dangerous. Individuals included within this registry are included solely by virtue of their conviction record and Illinois law. The main purpose of providing this data on the internet is to make the information more available and accessible, not to warn about any specific individual. 

Anyone who uses information contained in the Sex Offender Database to commit a criminal act against another person is subject to criminal prosecution.
Data Owner: Chicago Police Department.
Frequency: Data is updated daily.
Related Applications: CLEARMAP (http://j.mp/lLluSa).

Tags: crime, link-to-article-present, police
Organization: City of Chicago
311 Service Requests

311 Service Requests received by the City of Chicago. This dataset includes requests created after the launch of the new 311 system on 12/18/2018 and some records from the previous system, indicated in the LEGACY_RECORD column.

For purposes of all columns indicating geographic areas or locations, please note that requests of the type 311 INFORMATION ONLY CALL often are entered with the address of the City's 311 Center.

Tags: 311, service-requests
Organization: City of Chicago
Micro-Market Recovery Program - Violations and Inspections

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 sources to improve conditions, strengthen property values, and create environments supportive of private investment in targeted markets throughout the city. The goal of MMRP is to improve conditions, strengthen property values, and create environments supportive of private investment in targeted areas by strategically deploying public and private capital and other tools and resources in well-defined micro-markets.  This MMRP Violations and Inspections dataset contains Department of Buildings (DOB) Violations and associated Inspections that have occured at properties falling within an MMRP Zone.  Permits, Cases and Violations can be linked to the MMRP Geographies dataset using ADDRKEY or ADDRGRPKEY.  To link Violations and Inspections to their Permits and Cases use Violation PERMITORCASEKEY and link to Permits APKEY_PERMIT and Cases APKEY_CASE.  *Note: Inspections are included only when at least one violation was written.  Inspections without violations are not included in this dataset.

Tags: buildings, inspections
Organization: City of Chicago
COPA Cases - By Involved Officer

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 officers. Each row in this dataset is an officer 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.

Tags: complaint, copa, ipra, link-to-article-present, police
Organization: City of Chicago
Traffic Crashes - People

This data contains information about people involved in a crash and if any injuries were sustained. This dataset should be used in combination with the traffic Crash and Vehicle dataset. Each record corresponds to an occupant in a vehicle listed in the Crash dataset. Some people involved in a crash may not have been an occupant in a motor vehicle, but may have been a pedestrian, bicyclist, or using another non-motor vehicle mode of transportation. Injuries reported are reported by the responding police officer. Fatalities that occur after the initial reports are typically updated in these records up to 30 days after the date of the crash. Person data can be linked with the Crash and Vehicle dataset using the “CRASH_RECORD_ID” field. A vehicle can have multiple occupants and hence have a one to many relationship between Vehicle and Person dataset. However, a pedestrian is a “unit” by itself and have a one to one relationship between the Vehicle and Person table.

The Chicago Police Department reports crashes on IL Traffic Crash Reporting form SR1050. The crash data published on the Chicago data portal mostly follows the data elements in SR1050 form. The current version of the SR1050 instructions manual with detailed information on each data elements is available <a href="https://idot.illinois.gov/content/dam/soi/en/web/idot/documents/transportation-system/manuals-guides-and-handbooks/safety/illinois-traffic-crash-report-sr-1050-instruction-manual-2019.pdf" target="_blank">here</a>.

Change 11/21/2023: We have removed the RD_NO (Chicago Police Department report number) for privacy reasons.

Tags: link-to-article-present, public-safety, traffic-crashes, transportation, vision-zero
Organization: City of Chicago
Street Sweeping Schedule - 2026

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.

Tags: 2026, parking-restrictions, schedule, street-cleaning
Organization: City of Chicago
Public Passenger Vehicle Licenses - Historical

<b>NOT CURRENT DATA</b> - This dataset contains <b>past</b> records from the <a href="https://data.cityofchicago.org/d/tfm3-3j95"> Public Passenger Vehicle Licenses dataset</a>. It is intended for historical reference, not current licensing information. It follows the format of the Public Passenger Vehicle Licenses dataset, with the addition of two additional columns at the end.

The Last Valid Date column indicates the most recent timestamp when that set of values appeared in the Public Passenger Vehicle Licenses dataset.  It indicates when that version of the license record <b>stopped</b> being valid (was replaced by an updated version), not when it <b>started</b> being valid (replaced a previous version or was created for a newly added license). Due to various technical limitations, the Last Valid Date may be artificially late and intervening versions not shown are possible.

The Record Version ID is a unique identifier that has no meaning beyond distinguishing different versions of the same RecordID.

Please read the article linked below for more information.

Due to a change in the source system on 11/19/2018, all licenses will appear to have been updated on that date or on 11/20/2018.

Tags: historical, licenses, link-to-article-present, taxis, transportation, vehicles
Organization: City of Chicago
Street Vending Permits

<strong>A. SUMMARY</strong>
This dataset contains all Street Vendor Permits issued by the Department of Public Works whose status is active or approved including the approximate location of the vendor.

<strong>B. HOW THE DATASET IS CREATED</strong>
The dataset pulls permit information from the Department of Public Works system of record.

<strong>C. UPDATE PROCESS</strong>
This dataset will refresh once a week, though the underlying data can be updated at any time.

<strong>D. HOW TO USE THIS DATASET</strong>
Use this dataset to understand the location, goods sold, and type of permit issued for street vendors. Please note that "roaming" vendors will not have a latitude or longitude. Learn more about the program <u><a href="https://sfpublicworks.org/services/permits/street-vendor">here</a></u>.

<strong>E. RELATED DATASETS</strong>
<li> <u><a href="https://data.sfgov.org/Economy-and-Community/Mobile-Food-Facility-Permit/rqzj-sfat/about_data">Mobile Food Facility Permit</a></u>
<li> <u><a href="https://data.sfgov.org/Economy-and-Community/Registered-Business-Locations-San-Francisco/g8m3-pdis/about_data">Registered Businesses</a></u>

Organization: City of San Francisco
Lobbyist Data - Lobbyists

Lobbyists registered with the Chicago Board of Ethics since 2012.  Due to requirements for lobbyists to re-register and the importance of showing year for most lobbying-related data, the same lobbyist often will have multiple records.  See http://www.cityofchicago.org/city/en/depts/ethics/provdrs/lobby.html for more information on the Board of Ethics' role in regulating and reporting on lobbying in Chicago.

Tags: ethics, lobbyists
Organization: City of Chicago
Public Passenger Vehicle Licenses

A public passenger vehicle is a vehicle used for the transportation of passengers for hire by a public chauffeur. The list of public passenger vehicles includes licensed taxicabs (medallions), liveries, ambulances, medicars, charter-sightseeing buses, horse-drawn carriages, and pedicabs. For more information, please see https://www.chicago.gov/city/en/depts/bacp/provdrs/vehic.html.

Tags: licenses, link-to-article-present, taxis, transportation, vehicles
Organization: City of Chicago
BIA Cases - By Involved Officer

Complaints received by the Chicago Police Department Bureau of Internal Affairs (BIA). BIA investigates complaints of police misconduct that do not fall under the jurisdiction of the Civilian Office of Police Accountability (COPA). Types of misconduct investigated by BIA include the following (not a complete list):

<li>Criminal misconduct
<li>Operational violations
<li>Theft of money or property
<li>Planting of drugs
<li>Substance abuse
<li>Residency violations
<li>Medical roll abuse

A case will generate multiple rows, sharing the same LOG_NO if there are multiple officers. Each row in this dataset is an officer in a specific case.

To file a complaint with either BIA or COPA, please see https://www.chicagocopa.org/complaints.

Tags: complaint, internal-affairs, police
Organization: City of Chicago
Beach Swim Advisories

This dataset is historical-only. A similar dataset starting in 2017 can be found at https://data.cityofchicago.org/d/xvsz-3xcj -- The Chicago Park District issues swim advisories at beaches along Chicago's Lake Michigan lakefront based on predicted E. coli levels.  This dataset shows the predictions and whether a swim advisory was issued due to the predicted E. coli level being at least 235 Colony Forming Units (CFU) per 100 ml of water.

The data used to make the predictions can be found in https://data.cityofchicago.org/d/qmqz-2xku and https://data.cityofchicago.org/d/k7hf-8y75. The measured E. coli levels determined later can be found in https://data.cityofchicago.org/d/2ivx-z93u.

Tags: beaches, chicago-park-district, historical, open-spaces, parks, parks-recreation, recreation, water
Organization: City of Chicago
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.

Tags: sustainability, traffic
Organization: City of Chicago
Reference: Department Code List

These department codes are maintained in the City's financial system of record. Department Groups, Divisions, Sections, Units, Sub Units and Departments are nested in the dataset from left to right. Each nested unit has both a code and an associated name. 

The dataset represents a flattened tree (hierarchy) so that each leaf on the tree has it's own row. Thus certain rows will have repeated codes across columns.

Data changes as needed.

Tags: city-reference-data
Organization: City of San Francisco
Red Light Camera Violations

This dataset reflects the daily volume of violations created by the City of Chicago Red Light Program for each camera. The data reflects violations that occurred from July 1, 2014 until present, minus the most recent 14 days. This data may change due to occasional time lags between the capturing of a potential violation and the processing and determination of a violation. The most recent 14 days are not shown due to revised data being submitted to the City of Chicago during this period. The reported violations are those that have been collected by the camera system and reviewed by two separate City contractors. In some instances, due to the inability the registered owner of the offending vehicle, the violation may not be issued as a citation. However, this dataset contains all violations regardless of whether a citation was actually issued, which provides an accurate view into the Red Light Program.  Because of occasional time lags between the capturing of a potential violation and the processing and determination of a violation, as well as the occasional revision of the determination of a violation, this data may change. More information on the Red Light Program can be found here: http://www.cityofchicago.org/city/en/depts/cdot/supp_info/red-light_cameraenforcement.html.  The corresponding dataset for speed camera violations is https://data.cityofchicago.org/id/hhkd-xvj4.

Tags: citations, public-safety, traffic, transportation, violations
Organization: City of Chicago
Payments

All vendor payments made by the City of Chicago from 1996 to present. Payments from 1996 through 2002 have been rolled-up and appear as "2002." Total payment information is summarized for each vendor and contract number for data older than two years. These data are extracted from the City’s Vendor, Contract, and Payment Search.

Time Period: 1996 to present.

Frequency: Data is updated daily.

Related Applications: City of Chicago Vendor, Contract, and Payments Search (http://webapps.cityofchicago.org/VCSearchWeb/org/cityofchicago/vcsearch/controller/payments/begin.do?agencyId=city).

Tags: payments, vendors
Organization: City of Chicago
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.

Tags: contracts, procurement
Organization: City of Chicago
Business Licenses

NOTE, 9/25/2025 - We have populated the Address column for <a href="https://data.cityofchicago.org/stories/s/pnmi-a3z5" target="_blank">additional records</a>.

Business licenses issued by the Department of Business Affairs and Consumer Protection in the City of Chicago from 2002 to the present. This dataset contains a large number of records/rows of data and may not be viewed in full in Microsoft Excel. Therefore, when downloading the file, select CSV from the Export menu. Open the file in an ASCII text editor, such as Notepad or Wordpad, to view and search. 
 
Data fields requiring description are detailed below. 

APPLICATION TYPE:  ‘ISSUE’ is the record associated with the initial license application.  ‘RENEW’ is a subsequent renewal record.  All renewal records are created with a term start date and term expiration date.  ‘C_LOC’ is a change of location record.  It means the business moved.   ‘C_CAPA’ is a change of capacity record.  Only a few license types may file this type of application.  ‘C_EXPA’ only applies to businesses that have liquor licenses.  It means the business location expanded.  'C_SBA' is a change of business activity record. It means that a new business activity was added or an existing business activity was marked as expired.

LICENSE STATUS: ‘AAI’ means the license was issued. ‘AAC’ means the license was cancelled during its term.  ‘REV’ means the license was revoked. 'REA' means the license revocation has been appealed.

LICENSE STATUS CHANGE DATE:  This date corresponds to the date a license was cancelled (AAC), revoked (REV) or appealed (REA).

Business License Owner information may be accessed at:  https://data.cityofchicago.org/dataset/Business-Owners/ezma-pppn. To identify the owner of a business, you will need the account number or legal name, which may be obtained from this Business Licenses dataset. 

Data Owner: Business Affairs and Consumer Protection. Time Period: January 1, 2002 to present. Frequency: Data is updated daily.

Tags: business, licenses
Organization: City of Chicago
Beach Water Quality - Automated Sensors

The Chicago Park District maintains sensors in the water at beaches along Chicago's Lake Michigan lakefront. These sensors generally capture the indicated measurements hourly while the sensors are in operation during the summer.  During other seasons and at some other times, information from the sensors may not be available.  See https://data.cityofchicago.org/d/k7hf-8y75 for a dataset with land-based weather measurements at selected beaches.  The sensor locations are listed at https://data.cityofchicago.org/d/g3ip-u8rb.

Please note that sensor locations change with the Park District’s operational needs, primarily related to water quality. For more information on beach operations, please see https://www.chicagoparkdistrict.com/parks-facilities/beaches.

Tags: beaches, chicago-park-district, iot, open-spaces, parks, parks-recreation, recreation, sensors, water
Organization: City of Chicago
CDPH Environmental Asbestos and Demolition Notification

Notices of Intent (NOI) for demolition and asbestos abatement per Chapter 11 -4  Article XVIII of the <a href="https://www.chicityclerk.com/about-city-government-chicago-city-council/municipal-code" target="_blank">Municipal Code</a> submitted to the Department of Environment (DOE) for work started January, 1993 to December 31, 2011 or submitted to the Department of Public Health (CDPH) for work beginning on or after January 1, 2012. On January 1, 2012, the DOE was disbanded and all its inspection, permitting, and enforcement authorities were transferred to the CDPH.

Tags: asbestos, environmental-health
Organization: City of Chicago
Influenza, COVID-19, RSV, and Other Respiratory Virus Laboratory Surveillance

This dataset includes aggregated weekly respiratory virus laboratory data that the Chicago Department of Public Health (CDPH) uses to monitor influenza, COVID-19, respiratory syncytial virus (RSV), and other respiratory virus activity in Chicago. The data represents respiratory viral PCR tests performed by several hospital laboratories in Chicago as well as two commercial laboratories serving Chicago facilities. Data are voluntarily reported on a weekly basis and do not contain patient demographic or geographic information. The data reported represent both Chicago and non-Chicago residents tested by the reporting facility.  
 
The respiratory viruses included are influenza, RSV, SARS-CoV-2, parainfluenza, rhinovirus/enterovirus, adenovirus, human metapneumovirus, and seasonal coronaviruses. Influenza laboratory data are available from 2010-2011 to present; for all other respiratory viruses data are available from 2019-2020 to present.  

All data are provisional and subject to change. Information is updated as additional details are received. At any given time, this dataset reflects data currently known to CDPH. Numbers in this dataset may differ from other public sources.

Tags: covid-19, flu, health, public-health, respiratory
Organization: City of Chicago
Active Shared Housing Registrations

<b>Note, 8/1/2025:</b> We have <a href="https://data.cityofchicago.org/d/8auf-77a8" target="_blank">added</a> five columns to this dataset.

Registration data for shared housing units that are regulated by the Shared Housing Ordinance.

For information on the Shared Housing registration program, see https://www.chicago.gov/sharedhousing

Tags: house-share, regulation
Organization: City of Chicago