Welcome to the official City of Chicago Website. The source for information about City services, departments, programs and initiatives, and officials for Chicago residents, businesses, and visitors.

As a multicultural city that thrives on the harmony and diversity of its neighborhoods, Chicago today embodies the values of America's heartland-integrity, hard work and community and reflects the ideals in the social fabric of its 77 distinct neighborhoods.

Chicago is the third largest city in the United States, with a population of nearly three million people. Its scenic lakeside location, world-class cultural offerings and unique architecture are just some of the reasons why Chicago is a great place to live and visit.

Today, Chicago has become a global city, a thriving center of international trade and commerce, and a place where people of every nationality and background come to pursue the American dream. Indigenous Chicago

The City of Chicago is located on Lake Michigan, in Cook County, in northeastern Illinois. City government is divided into executive and legislative branches. The mayor is the chief executive while the City Council, elected from 50 wards, is the legislative body.

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CHICAGO – The City of Chicago today approved its 2025 budget, a comprehensive financial plan that prioritizes working-class families, invests in long-term community safety and equity and upholds fiscal responsibility—all while avoiding service cuts, job …

The Department of Finance provides effective and efficient management of the City’s financial resources. It is responsible for the collection or disbursement of City revenues and all funds required to be in the custody of the city treasurer.

The City of Chicago Benefits Office web page contains Open Enrollment information for all employees for the calendar year 2025.

Chicago has fifty wards. Each ward is a political district, and the voters in each ward are represented by an elected Alderman. The fifty Aldermen make up the Chicago City Council.