Please note that new Connecticut county and township level geographies are not available within the map.

            An official website of the United States government          

**Official websites use .gov**              A **.gov** website belongs to an official government              organization in the United States.            

**Secure .gov websites use HTTPS**              A **lock** (              LockA locked padlock              ) or **https://** means you’ve safely connected to              the .gov website. Share sensitive information only on official,              secure websites.            

----

What's New & FAQs

# QuickFacts

## Cook County, Illinois; Illinois; United States

QuickFacts provides statistics for all states and counties. Also for cities and towns with a ***population of 5,000 or more***.

Clear

3Table

Chart

View Selected LocationsCook County, IllinoisIllinoisUnited States

More

Print

CSV

Email

### Chart

## Population estimates, July 1, 2023, (V2023)

Cook County, Illinois



DuPage County, Illinois



Lake County, Illinois



Will County, Illinois



Kane County, Illinois



McHenry County, Illinois



Winnebago County, Illinois



Madison County, Illinois



St. Clair County, Illinois



Champaign County, Illinois



Sangamon County, Illinois



Peoria County, Illinois



McLean County, Illinois



Rock Island County, Illinois



Kendall County, Illinois



Tazewell County, Illinois



LaSalle County, Illinois



Kankakee County, Illinois



Macon County, Illinois



DeKalb County, Illinois



Vermilion County, Illinois



Williamson County, Illinois



Adams County, Illinois



Whiteside County, Illinois



Grundy County, Illinois



Boone County, Illinois



Jackson County, Illinois



Ogle County, Illinois



Henry County, Illinois



Knox County, Illinois



Coles County, Illinois



Macoupin County, Illinois



Stephenson County, Illinois



Woodford County, Illinois



Franklin County, Illinois



Clinton County, Illinois



Marion County, Illinois



Jefferson County, Illinois



Livingston County, Illinois



Monroe County, Illinois



Effingham County, Illinois



Lee County, Illinois



Christian County, Illinois



Bureau County, Illinois



Fulton County, Illinois



Morgan County, Illinois



Randolph County, Illinois



Montgomery County, Illinois



Logan County, Illinois



McDonough County, Illinois



Iroquois County, Illinois



Saline County, Illinois



Jo Daviess County, Illinois



Fayette County, Illinois



Jersey County, Illinois



Shelby County, Illinois



Perry County, Illinois



Douglas County, Illinois



Crawford County, Illinois



Hancock County, Illinois



Piatt County, Illinois



Union County, Illinois



Bond County, Illinois



Edgar County, Illinois



Warren County, Illinois



Wayne County, Illinois



Carroll County, Illinois



Richland County, Illinois



Mercer County, Illinois



De Witt County, Illinois



Clark County, Illinois



Lawrence County, Illinois



Pike County, Illinois



Moultrie County, Illinois



Massac County, Illinois



Washington County, Illinois



White County, Illinois



Johnson County, Illinois



Ford County, Illinois



Clay County, Illinois



Cass County, Illinois



Mason County, Illinois



Menard County, Illinois



Marshall County, Illinois



Greene County, Illinois



Wabash County, Illinois



Cumberland County, Illinois



Jasper County, Illinois



Hamilton County, Illinois



Schuyler County, Illinois



Brown County, Illinois



Henderson County, Illinois



Edwards County, Illinois



Putnam County, Illinois



Stark County, Illinois



Pulaski County, Illinois



Scott County, Illinois



Alexander County, Illinois



Gallatin County, Illinois



Calhoun County, Illinois



Pope County, Illinois



Hardin County, Illinois



**Value Notes**

Methodology differences may exist between data sources, and so estimates from different sources are not comparable.

Some estimates presented here come from sample data, and thus have sampling errors that may render some apparent differences between geographies statistically        indistinguishable. Click the Quick Info   icon to the left of each row in TABLE view to learn about sampling error.

The vintage year (e.g., V2023) refers to the final year of the series (2020 thru 2023). Different vintage years of estimates are not comparable.

Users should exercise caution when comparing 2018-2022 ACS 5-year estimates to other ACS estimates. For more information, please visit     the 2022 5-year ACS Comparison Guidance page. 

**Fact Notes**      -  (a) Includes persons reporting only one race
      -  (b) Hispanics may be of any race, so also are included in applicable race categories
      -  (c) Economic Census - Puerto Rico data are not comparable to U.S. Economic Census data
**Value Flags**      -  D Suppressed to avoid disclosure of confidential information
      -  F Fewer than 25 firms
      -  FN Footnote on this item in place of data
      -  NA Not available
      -  S Suppressed; does not meet publication standards
      -  X Not applicable
      -  Z Value greater than zero but less than half unit of measure shown
      -  - Either no or too few sample observations were available to compute an estimate, or a ratio of medians cannot be calculated because one or both of the median estimates falls in the lowest or upper interval of an open ended distribution.
      -  N Data for this geographic area cannot be displayed because the number of sample cases is too small.

QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

CONNECT WITH US**********

                - Information Quality
                - Data Linkage Infrastructure
                - Data Protection and Privacy Policy
                - Accessibility
                - FOIA
                - Inspector General
                - No FEAR Act
                - U.S. Department of Commerce
                - USA.gov

----

Measuring America's People, Places, and Economy

Is this page helpful?YesNo

Thank you for your feedback.Comments or suggestions? 

Comments or suggestions?255 characters maximum⚠ 255 characters maximum reached