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Cook County is the most populous county in the U.S. state of Illinois and the second-most-populous county in the United States, after Los Angeles County, California. More than 40 percent of all residents of Illinois live within Cook County. As of 2020, the population was 5,275,541.
Learn about Cook County's services, programs, news, events and budget. Find information on parking, small business, water affordability, Project Rainbow and more.
Learn about the history, population, government and services of Cook County, the second most populous county in the nation. Cook County contains 134 municipalities, including the City of Chicago, and is governed by a 17-member Board of Commissioners.
As the seat of Cook County, the second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents.
Learn about the government of Cook County, the only home rule county in Illinois, and its elected officials, agencies, and services. Find out how Cook County votes in presidential elections and its budget and taxes.
Mar 25, 2023 · Chicago is its county seat. It’s well-known for its attractive landscapes and outdoor recreation from its forest preserves, fishing, beaches, boating, amusement centers, historic places, and much more. Check out the 15 best things to do in Cook County, Illinois.
Learn about the population, diversity, economy, education, and health of Cook County, IL, the most populous county in Illinois and home to Chicago. See charts, maps, and data sources for various indicators and compare with other geographies.
Book Hotels in Cook County, Illinois. Browse Reviews & Photos. Compare Great Options. Browse the Photos and Get Inspired. Start Planning Your Next Getaway.
