The land area of Cook County, IL was 945 in 2017. The land area of Will County, IL was 837 in 2017.

Land Area

Water Area

Land area is a measurement providing the size, in square miles, of the land portions of geographic entities for which the Census Bureau tabulates and disseminates data. Area is calculated from the specific boundary recorded for each entity in the Census Bureau's geographic database. Land area is based on current information in the TIGER® data base, calculated for use with Census 2010.

Water Area figures include inland, coastal, Great Lakes, and territorial sea water. Inland water consists of any lake, reservoir, pond, or similar body of water that is recorded in the Census Bureau's geographic database. It also includes any river, creek, canal, stream, or similar feature that is recorded in that database as a two- dimensional feature (rather than as a single line). The portions of the oceans and related large embayments (such as Chesapeake Bay and Puget Sound), the Gulf of Mexico, and the Caribbean Sea that belong to the United States and its territories are classified as coastal and territorial waters; the Great Lakes are treated as a separate water entity. Rivers and bays that empty into these bodies of water are treated as inland water from the point beyond which they are narrower than 1 nautical mile across. Identification of land and inland, coastal, territorial, and Great Lakes waters is for data presentation purposes only and does not necessarily reflect their legal definitions.

Above charts are based on data from the U.S. Census American Community Survey | ODN Dataset | API - Notes:

1. ODN datasets and APIs are subject to change and may differ in format from the original source data in order to provide a user-friendly experience on this site.

2. To build your own apps using this data, see the ODN Dataset and API links.

3. If you use this derived data in an app, we ask that you provide a link somewhere in your applications to the Open Data Network with a citation that states: "Data for this application was provided by the Open Data Network" where "Open Data Network" links to http://opendatanetwork.com. Where an application has a region specific module, we ask that you add an additional line that states: "Data about REGIONX was provided by the Open Data Network." where REGIONX is an HREF with a name for a geographical region like "Seattle, WA" and the link points to this page URL, e.g. http://opendatanetwork.com/region/1600000US5363000/Seattle_WA

Geographic and Area Datasets Involving Will County, IL or Cook County, IL

  • API

    Medical Examiner Indigent Cremations

    datacatalog.cookcountyil.gov | Last Updated 2019-05-31T18:52:51.000Z

    The following page lists the unclaimed indigents cremated by the Cook County Medical Examiner’s Office.

  • API

    Population by 2010 Census Block

    data.cityofchicago.org | Last Updated 2019-01-18T18:44:11.000Z

    Population estimates by the U.S. Census Bureau by U.S. Census Block.

  • API

    Human Resources - Compliance Officer’s Semi-Annual Reports

    datacatalog.cookcountyil.gov | Last Updated 2019-03-18T18:22:11.000Z

    These reports are issued every March 15th and September 15th. As required under the Employment Plan, Cook County Board President Toni Preckwinkle hired a Compliance Officer whose primary responsibilities include the following: 1. Overseeing compliance with the Employment Plan 2. Maintaining and reviewing the Exempt List 3. Accepting, investigating, and reporting on complaints related to Employment Actions and the Employment Plan 4. Taking steps to evaluate, eliminate, remedy and reporting instances of Political Contacts and Unlawful Political Discrimination; and 5. Training on Employment Plan and reviewing Policies and Procedures. If you would like to make a complaint alleging non-compliance with the Employment Plan, a Complaint Form is available or you can contact the Compliance Officer directly. Letitia Dominici, Compliance Officer 118 N. Clark Street, 8th Floor Chicago, IL 60602 Letitia.dominici@cookcountyil.gov

  • API

    CPS Schools 2013-2014 Academic Year

    data.cityofchicago.org | Last Updated 2013-11-26T20:27:57.000Z

    List of CPS schools for the 2013-2014 academic year. This dataset includes various identifiers used to identify school districts, including names; local, state, and federal IDs; and geographic descriptions on the location of each school.

  • API

    Cook County Clerk -- Statement of Economic Interests Filers

    datacatalog.cookcountyil.gov | Last Updated 2015-02-04T21:13:29.000Z

    The update script for this dataset is currently broken. Please see the Cook County Clerk SEI Search for recent filings. For extended information about Statements of Economic Interests in Cook County IL, visit the Cook County Clerk's SEI search: http://ethics.cookcountyclerk.com/PublicSearch/

  • API

    Cook County Clerk - Lobbyist Activity

    datacatalog.cookcountyil.gov | Last Updated 2019-08-22T05:10:06.000Z

    This dataset is updated nightly. For extended information about Lobbyist Activities in Cook County IL, visit the Cook County Clerk's Lobbyist search: http://lobbyist.cookcountyclerk.com/Public/SearchHome.aspx

  • API

    Human Resources - Compliance Officer’s Quarterly Employment Action Reports

    datacatalog.cookcountyil.gov | Last Updated 2019-07-12T16:07:32.000Z

    In order to ensure Cook County’s commitment to transparency, reports on employment actions and monitoring activities are available. As required under the Employment Plan, Cook County Board President Toni Preckwinkle hired a Compliance Officer whose primary responsibilities include the following: 1. Overseeing compliance with the Employment Plan 2. Maintaining and reviewing the Exempt List 3. Accepting, investigating, and reporting on complaints related to Employment Actions and the Employment Plan 4. Taking steps to evaluate, eliminate, remedy and reporting instances of Political Contacts and Unlawful Political Discrimination; and 5. Training on Employment Plan and reviewing Policies and Procedures. If you would like to make a complaint alleging non-compliance with the Employment Plan, a Complaint Form is available or you can contact the Compliance Officer directly. Letitia Dominici, Compliance Officer 118 N. Clark Street, 8th Floor Chicago, IL 60602 Letitia.dominici@cookcountyil.gov

  • API

    City-Owned Land Inventory

    data.cityofchicago.org | Last Updated 2019-08-21T23:01:54.000Z

    Property owned and managed by the City of Chicago. Information provided in the database, or on the City’s website generally, should not be used as a substitute for title research, title evidence, title insurance, real estate tax exemption or payment status, environmental or geotechnical due diligence, or as a substitute for legal, accounting, real estate, business, tax or other professional advice. The City assumes no liability for any damages or loss of any kind that might arise from the reliance upon, use of, misuse of, or the inability to use the database or the City’s web site and the materials contained on the website. The City also assumes no liability for improper or incorrect use of materials or information contained on its website. All materials that appear in the database or on the City’s web site are distributed and transmitted "as is," without warranties of any kind, either express or implied as to the accuracy, reliability or completeness of any information, and subject to the terms and conditions stated in this disclaimer.

  • API

    Cook County Budget 1993-2011

    datacatalog.cookcountyil.gov | Last Updated 2014-10-27T16:32:42.000Z

    Every year your Cook County government budgets and spends more than $3 billion. Your County's budget impacts your life every day. All of its funding comes from you - your sales and property taxes, your purchase fees on gas and other goods. All of its spending exists to support you, too. County funding drives the forest preserve district, the jail, public hospitals and clinics, the Cook County courts and dozens of other civic institutions designed to make our region prosperous, efficient and fair. Yet too many residents don't understand what Cook County government is or what it does. They keep asking, "where exactly does our money go?" Commissioner John Fritchey created this budget transparency tool to answer that question, but it's only a first step. We need your help. What questions do you have about County spending? What do you want to know about the County budget that this visualization isn't explaining to you? What do you think of our spending? What can we do to make Cook County government better?

  • API

    Building Code Scofflaw List

    data.cityofchicago.org | Last Updated 2018-07-11T20:45:28.000Z

    The Chicago Building Scofflaw Ordinance (Section 2-92-416 of the Municipal Code of Chicago) is designed to prevent landlords that refuse or refrain from correcting ongoing building code violations from receiving city contracts, including those that subsidize housing. Building owners must have a least three residential buildings with uncorrected violations and have had three or more properties referred to Circuit Court within the applicable 12 month period to be eligible for the list. The building code scofflaw list is updated once a year on the first business day of December, and building owners may appeal being named on the list. Building owners with controlling interest in at least three residential properties that have habitual, extensive or serioues building code violations are now ineligible for any new city contracts in 2015. The following individuals or entities have been placed on the Building Code Scofflaw list for the entire calendar year.