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Procurement - Bid Tabulations Archive
datacatalog.cookcountyil.gov | Last Updated 2021-02-03T23:53:01.000ZThis is an archive of bid tabulations before June 2016. For current bid tabulations see https://datacatalog.cookcountyil.gov/d/32au-zaqn. The bid tabulations provided herein are preliminary and are for informational purposes only. The purpose of providing this preliminary information is to improve process transparency. The information contained in the preliminary bid tabulations is subject to change pending math review, analysis of all bids, and review of documentation provided. Bids: All bids estimated at $25,000 or more are publicly opened and read at the time, date, and place specified in the bid document. RFP/RFQ/RFI: Responses to RFP/RFQ/RFI are not publicly opened. Names of respondents will be made available based on the names identified on the sealed package and is, therefore, subject to change.
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Historical - ccgisdata - Election Precinct Data 2009
datacatalog.cookcountyil.gov | Last Updated 2024-04-24T18:42:52.000ZThis data includes 2009 precincts used for all elections 2010 thru 2011. The purpose of the feature class is to describe and locate election precincts in Cook County, Illinois for general use by the public and business requirements of the Cook County Election Department, the Clerk's Office, and the Illinois Board of Elections.
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Assessor [Archived 05-11-2022] - Residential Modeling Characteristics (Chicago)
datacatalog.cookcountyil.gov | Last Updated 2023-05-30T23:49:19.000ZThis 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 value of most Chicago homes (single-family homes, small multi-family homes, and condo units). You can use the "Filter" option to search for a property's PIN or address, and see what data the Assessor’s Office had about a home’s characteristics at the time of modeling*. To learn more about how the 2021 model used this data, read about our public <a href="https://gitlab.com/ccao-data-science---modeling/models/ccao_res_avm" target=_new>Residential Automated Valuation Model here</a>. Chicago properties not listed here are reassessed using different modeling procedures. <br> <br> <b>*Important Note:</b> This dataset is, at the time of publication, an early snapshot of data. Data about a home might change later in the assessment process this year as Assessor’s Office staff and analysts review these properties. After this review, updated characteristics and market values are mailed to homeowners. If the data listed on the assessment notice is incorrect, an appeal can be filed to provide the correct characteristics.
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Early Voting & Grace Period Registration and Voting - 2014 November 4 Gubernatorial Election
datacatalog.cookcountyil.gov | Last Updated 2023-06-01T22:46:51.000ZThis dataset details the hours and locations for voter registration and voting in suburban Cook County between Oct. 8 and election day, Nov. 4, 2014. Voters may visit one of the 18 election day registration sites if they are not already registered and eligible to vote in their precinct. For more information on Early Voting see http://www.cookcountyclerk.com/elections/earlyvoting/Pages/default.aspx , For more information on Grace Period Registration and Voting see http://www.cookcountyclerk.com/elections/registertovote/Pages/GracePeriod.aspx . For more information on Election Day Registration and Voting see http://www.cookcountyclerk.com/elections/registertovote/Pages/ElectionDayRegistration.aspx .
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Historical - ccgisdata - Election Precinct Data 2011
datacatalog.cookcountyil.gov | Last Updated 2024-04-24T18:40:55.000ZThis data includes 2011 precincts used for all elections 2012 thru 2015. The purpose of the feature class is to describe and locate election precincts in Cook County, Illinois for general use by the public and business requirements of the Cook County Election Department, the Clerk's Office, and the Illinois Board of Elections.
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Assessor [Archived 05-11-2022] - Residential Property Characteristics
datacatalog.cookcountyil.gov | Last Updated 2022-05-11T15:55:10.000ZAssessment dataset used by the Cook County Assessor in their Computer Assisted Mass Appraisal (CAMA) system used to assess residential properties in Northern Triennial Townships. This dataset contains property information for every residential PIN in the northern triennial townships where class is within a specified list of classes. For disclaimers, see dataset narrative at https://datacatalog.cookcountyil.gov/stories/s/p2kt-hk36
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Historical - ccgisdata - Election Precinct Data - 2015 to 2016
datacatalog.cookcountyil.gov | Last Updated 2024-04-24T18:40:02.000ZElection Precinct Data- Current consists of 2015 precincts used for the 2016 primary and general elections. The purpose of the feature class is to describe and locate election precincts in Cook County, Illinois for general use by the public and business requirements of the Cook County Election Department, the Clerk's Office, and the Illinois Board of Elections.
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Assessor [Archived 05-11-2022] - Residential Sales Data
datacatalog.cookcountyil.gov | Last Updated 2022-05-11T15:56:46.000ZThis is the data set of residential sales used by the Cook County Assessor in their Computer Assisted Mass Appraisal system used to assess residential property values. This data set contains property information for every arm's-length residential sale in Cook County where class is within a specified list of classes. For disclaimers, see data set narrative at https://datacatalog.cookcountyil.gov/stories/s/p2kt-hk36 This data set was replaced by the more comprehensive data set Cook County Assessor's Sales.
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2010 U.S. Census Mail Return Rates and Demographics by Tract
datacatalog.cookcountyil.gov | Last Updated 2021-02-03T22:34:50.000Z2010 U.S. Census Mail Return Rates and Demographics by Tract for Cook County. According to the US Census, tracts that fell below the 73% threshold were designated as containing "hard-to-count" (HTC) populations. The data supplies two primary groups of information: 1) details on the mail return rates for each census tract in Cook County 2) Estimated demographic characteristics for each census tract in Cook County. For detailed information on the data please go to the following link: https://datacatalog.cookcountyil.gov/stories/s/hza3-k7kt
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Procurement - Bid Tabulations
datacatalog.cookcountyil.gov | Last Updated 2024-07-07T22:32:20.000ZThe bid tabulations provided herein are preliminary and are for informational purposes only. The purpose of providing this preliminary information is to improve process transparency. The information contained in the preliminary bid tabulations is subject to change pending math review, analysis of all bids, and review of documentation provided. Bids: All bids estimated at $25,000 or more are publicly opened and read at the time, date, and place specified in the bid document. RFP/RFQ/RFI: Responses to RFP/RFQ/RFI are not publicly opened. Names of respondents will be made available based on the names identified on the sealed package and is, therefore, subject to change. For bid tabulations before June 2016 see https://datacatalog.cookcountyil.gov/d/pn38-yupm