30 datasets found
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County
Assessor - Parcel Universe (Current Year Only)
Cook County of Illinois —
A current-year-only universe of Cook County parcels with attached geographic, governmental, and spatial data. When working with Parcel Index Numbers (PINs) make sure... -
County
Assessor - Commercial Valuation Data
Cook County of Illinois —
Commercial valuation data collected and maintained by the Cook County Assessor's Office, from 2021 to present. The office uses this data primarily for valuation and... -
County
Assessor - Neighborhood Boundaries
Cook County of Illinois —
Neighborhood polygons used by the Cook County Assessor's Office for valuation and reporting. These neighborhoods are specific to the Assessor. They are intended to... -
County
Assessor - Parcel Sales
Cook County of Illinois —
Update 10/31/2023: Sales are no longer filtered out of this data set based on deed type, sale price, or recency of sale for a given PIN with the same price. If users... -
County
Assessor - Residential Condominium Unit Characteristics
Cook County of Illinois —
Residential condominium unit characteristics collected and maintained by the Assessor's office for all of Cook County, from 1999 to present. The office uses this data... -
County
Assessor - Assessed Values
Cook County of Illinois —
Land, building, and total assessed values for all Cook County parcels, from 1999 to present. The Assessor's Office uses these values for reporting, evaluating... -
County
Assessor [Archived 05-11-2022] - Sales
Cook County of Illinois —
Real estate sales data used by the Cook County Assessor to estimate Fair Cash Values for the purpose of property taxation. Deeds that include multiple PIN numbers are... -
County
Assessor [Archived 05-11-2022] - Residential Modeling Characteristics (Chicago)
Cook County of Illinois —
This data set contains characteristic data points used by the Cook County Assessor in the 2021 Chicago reassessment to produce initial estimates of the current market... -
County
Assessor - Appeals
Cook County of Illinois —
Land, building, and total assessed values, pre and post-appeal with the Cook County Assessor’s office, for all Cook County parcels, from 1999 to present. The... -
County
Assessor - 2023 Open Data Refresh
Cook County of Illinois —
A brief outline of the changes users can expect from the Assessor's open data offerings. -
County
Assessor [Archived 05-31-2023] - Parcel Universe
Cook County of Illinois —
A complete, historic universe of Cook County parcels with attached geographic, governmental, and spatial data. When working with Parcel Index Numbers (PINs) make sure... -
County
Assessor [Archived 05-18-2022] - Residential Assessments
Cook County of Illinois —
This data contains every residential Property Index Number (PIN) and corresponding Assessed Values from significant stages in the assessment process. This data was... -
County
Assessor - 2022 Open Data Refresh
Cook County of Illinois —
A brief outline of the changes users can expect from the Assessor's open data offerings. -
County
Assessor [Archived 05-11-2022] - Residential Exemption Amounts
Cook County of Illinois —
This data displays total exempt EAV and total exemptions by tax code. Since residential exemptions reveal sensitive information about individual taxpayers and... -
County
Assessor [Archived 05-11-2022] - Residential Neighborhood Boundaries
Cook County of Illinois —
Neighborhoods play an important role in residential property assessment. Single-family and residential multi-family property assessments are sensitive to neighborhood... -
County
Assessor [Archived 05-11-2022] - First Pass Values
Cook County of Illinois —
As of February 14, 2020 this dataset will be considered archived information and will no longer be updated. First-pass property values as assessed by the Cook County... -
County
Assessor [Archived 05-11-2022] - Property Locations
Cook County of Illinois —
This data set includes property locations and attached spatial data for all Cook County parcels. Spatial matching was based on parcel centroids. Older properties may... -
County
Assessor [Archived 05-11-2022] - Experimental Single Family Sales Comparables
Cook County of Illinois —
A data set showing algorithmically determined sales comparables for single family properties in Lake Township -
County
Assessor [Archived 05-18-2022] - Homeowner Exemptions, by Town Number/Township - 2010
Cook County of Illinois —
Homeowner Exceptions by Town Number/Township in Tax Year 2010. -
County
Assessor [Archived 05-11-2022] - Residential Property Characteristics
Cook County of Illinois —
Assessment dataset used by the Cook County Assessor in their Computer Assisted Mass Appraisal (CAMA) system used to assess residential properties in Northern...
30 datasets found