datacatalog.cookcountyil.gov

← National index

What this record is. Each row compares the update cadence a dataset advertises in its own portal metadata against the last update time that same portal reports. Nothing here is a claim of wrongdoing, and nothing here is scraped from a third party — every figure is recomputable from the portal's own public API in seconds using the link in the row. Datasets whose own titles say they are historical or cover a closed period are excluded from the headline and listed separately.
Method: Socrata catalog API; advertised Update-Frequency vs measured data_updated_at; frozen >3x the advertised budget; self-labeled historical excluded; bounded-period datasets reported separately as label bugs, not abandoned feeds
Producer: core/govdata_national_merge.cjs · recompute boundary 2026-10-28T14:30:00.000Z · record is 9.3 hours old.

Of 109 datasets on this portal that advertise an update cadence, 46 (42.2%) were last updated longer ago than that cadence allows. 10 self-labeled historical datasets were excluded. The longest-running gap is 12.1 years.

DatasetAgencyAdvertisedDays since updateOver budget
Cook County Clerk -- Statement of Economic Interests Filers daily4402 4401.6x
Cook County Clerk - Lobbyist Activity daily1777 1777.3x
ETSB 911 Monthly Call Volume monthly2030 65.5x
Cook County Officials Dual Employment Disclosure Form weekly418 59.7x
Employee Payroll quarterly3047 33.1x
STAR Data - Monthly monthly595 19.2x
Cook County Clerk - Tax Agency Rates yearly4430 12.1x
Cook County Clerk - Tax codes, agencies, and rates yearly4402 12x
Cook County Clerk - Tax code Rates yearly4402 12x
StreetMidline2015 Cook County GIS Departmentyearly3990 10.9x
ElemSchlTaxDist yearly3974 10.9x
CommCollTaxDist annually3975 10.9x
Lot yearly3970 10.8x
ElemSchlTaxDist yearly3971 10.8x
Comptroller - Annual Salaries - 2014 - August 28 yearly3933 10.7x
AP_AREA_07 Cook County GIS Departmentannually3822 10.4x
Commission on Women’s Issues Public Hearing Reports Cook County Commission on Women’s Issuesyearly3779 10.3x
Treasurer - Annual Tax Sale annually3613 9.9x
Suburban Cook County - Selected Causes of Death annually3369 9.2x
Suburban Cook County - Births (Birth Related Outcomes & Characteristics) annually3369 9.2x
State's Attorney Felony Cases - Sentences By Offense Type and Defendant Race Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Sentences By Offense Type Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Initiation Results by Offense Type and Defendant Race Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Sentences By Offense Type and Defendant Age Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Disposition Outcomes By Offense Type and Defendant Race Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Sentences By Offense Type and Location Type Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Average Case Length and Sum of Length, By Offense Type Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Disposition Outcomes By Offense Type Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Initiation Results by Offense Type and Location Type Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Disposition Outcomes By Offense Type and Defendant Age Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Initiation Results by Offense Type annually3318 9.1x
State's Attorney Felony Cases - Sentences By Offense Type and Defendant Gender Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Initiation Results by Offense Type and Defendant Gender Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Disposition Outcomes By Offense Type and Location Type Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Initiation Results by Offense Type and Defendant Age annually3318 9.1x
State's Attorney Felony Cases - Disposition Outcomes By Offense Type and Defendant Gender Cook County State's Attorney Officeannually3318 9.1x
State's Attorney Felony Cases - Disposition Outcomes Cook County State's Attorney Officeannually3305 9x
State's Attorney Felony Cases - Initiation Results Cook County State's Attorney Officeannually3299 9x
State's Attorney Felony Cases - Sentences Imposed on Defendants by the Courts Cook County State's Attorney Officeannually3305 9x
ccgisdata - Cook County Cooling Centers Cook County Department of Homeland Security and Emergency Managementyearly3061 8.4x
Assessor - Parcel Proximity Data Departmentmonthly239 7.7x
Annual Budget Appropriations Department of Budget and Management Servicesyearly2385 6.5x
STAR Quarterly Performance Data Performance Management Officequarterly595 6.5x
Metropolitan Water Reclamation District Inspector General Quarterly Reports quarterly560 6.1x
Public Health - Suburban Cook County - Selected Causes of Death Cook County Department of Public Health, Epidemiology Unityearly2220 6.1x
Assessor - Neighborhood Boundaries Data Departmentyearly1643 4.5x

Label bugs on finished datasets (24)

These datasets carry a recurring cadence label but their own titles state a closed coverage period, and their data stops where their titles say it stops. The data is not abandoned — the cadence label on it is simply wrong. Listed separately and excluded from the count above.

DatasetAgencyAdvertisedDays since updateOver budget
Cook County Recorder - Foreclosures, Mortgages, and Quit Claim Deeds - 2013 through March 27, 2015 quarterly4222 45.9x
Budget - Fiscal Year 2015 Budget Executive Recommendation - Summary By Object Classification yearly4394 12x
Budget - FY2014 Appropriations And Expenditures with FY2015 Adopted Appropriation Cook County Department of Budget and Management Servicesyearly4199 11.5x
Budget - Fiscal Year 2016 Executive Recommendation - Budget Summary Of Positions By Business Unit Cook County Department of Budget & Management Servicesyearly4032 11x
Budget - Fiscal Year 2016 Executive Recommendation - Budget Summary By Object Classification Cook County Department of Budget & Management Servicesyearly4032 11x
Budget - Fiscal Year 2016 Executive Recommendation - Capital Equipment Cook County Department of Budget & Management Servicesyearly4032 11x
Comptroller - Annual Salaries - 2015 - November 24 Cook County Office of the Comptrolleryearly3933 10.7x
Budget - FY2015 Appropriations And Expenditures with FY2016 Adopted Appropriation Cook County Department of Budget and Management Servicesyearly3834 10.5x
Fiscal Year 2017 Preliminary Budget - Special Purpose Fund Outlook Cook County Department of Budget and Management Servicesyearly3757 10.3x
Fiscal Year 2017 Preliminary Budget - Fiscal Year 2016 Projected Revenue Cook County Department of Budget and Management Servicesyearly3757 10.3x
Fiscal Year 2017 Preliminary Budget - Fiscal Year 2017 Projected Revenue Cook County Department of Budget and Management Servicesyearly3757 10.3x
Fiscal Year 2017 Preliminary Budget - Fiscal Year 2017 Projected Expenses Cook County Department of Budget and Management Servicesyearly3757 10.3x
Fiscal Year 2017 Preliminary Budget - Fiscal Year 2016 Projected Expenses Cook County Department of Budget and Management Servicesyearly3757 10.3x
Budget - Fiscal Year 2017 Executive Recommendation - Budget Summary Of Positions By Business Unit Cook County Department of Budget & Management Servicesyearly3662 10x
Budget - Fiscal Year 2017 Executive Recommendation - Capital Equipment Cook County Department of Budget & Management Servicesyearly3662 10x
Budget - Fiscal Year 2017 Executive Recommendation - Budget Summary By Object Classification Cook County Department of Budget & Management Servicesyearly3641 9.9x
Budget - Fiscal Year 2017 Adopted - Budget Summary Of Positions By Business Unit Cook County Department of Budget & Management Servicesyearly3513 9.6x
Budget - Fiscal Year 2017 Adopted - Budget Summary By Object Classification Cook County Department of Budget & Management Servicesyearly3513 9.6x
Fiscal Year 2018 Preliminary Budget - Fiscal Year 2017 Projected Revenue Cook County Department of Budget and Management Servicesyearly3410 9.3x
Fiscal Year 2018 Preliminary Budget - Fiscal Year 2018 Projected Revenue Cook County Department of Budget and Management Servicesyearly3410 9.3x
Fiscal Year 2018 Preliminary Budget - Fiscal Year 2017 Projected Expenses Cook County Department of Budget and Management Servicesyearly3410 9.3x
Fiscal Year 2018 Preliminary Budget - Fiscal Year 2018 Projected Expenses Cook County Department of Budget and Management Servicesyearly3410 9.3x
ccgisdata - Tax Increment Financing (TIF) Districts 2016 Cook County Clerk and Cook County GIS Dept.yearly3387 9.3x
Fiscal Year 2018 Preliminary Budget - Special Purpose Fund Outlook Cook County Department of Budget and Management Servicesyearly3410 9.3x

Correct this record

If any row above is wrong, submit a correction — free, no proof required, and we will remove this page on request.