You can view a list of all City Departments on this page. Under the department name is a list of Service Providers for that department.
Chicago produced the first Window envelope in 1902
The Mayor of Chicago, the city's chief executive officer, directs city departments and appoints department heads, with the advice and consent of the city council.
Call 311 for assistance with non-emergency City Services and for information on events, programs and agencies within the City of Chicago.
The Department of Administrative Hearings is an independent quasi-judicial body. The matters which come before us to be adjudicated relate to the public health, safety, welfare, morals and economic well being of the residents of the City of Chicago.
Chicago Animal Care and Control protects public safety and ensures the humane care of animals through sheltering, pet placement, education and animal law enforcement.
The Department of Buildings supports the safety and quality of life for the residents and visitors of the City of Chicago through enforcement of the Chicago Building Code. The permitting and inspection process promotes high quality design standards as well as the conservation, rehabilitation and reuse of the City's existing buildings.
BACP ensures a fair and vibrant market place for both businesses and consumers. BACP licenses businesses and public vehicles, provides business education and access to resources, enforces the Municipal Code, and protects consumers from fraud.
Information on all Chicago airports, airport news, flight information, ground information, O'Hare, Modernization, Midway, travel advisories, and more.
The Chicago Police Board is an independent civilian body that oversees certain activities of the Chicago Police Department. The Board's powers and responsibilities include deciding disciplinary matters involving police officers and nominating candidates for Superintendent of Police to the Mayor.
The Chicago Public Library encourages lifelong learning by welcoming all people and offering equal access to information, entertainment and knowledge through materials, programs and cutting-edge technology.
City of Chicago TV is responsible for the production of programs which are shown on cable channels 23 and 49 in Chicago as well as being available on the City of Chicago TV YouTube channel.
The Commission on Human Relations (CCHR) is charged with enforcing the Chicago Human Rights Ordinance and the Chicago Fair Housing Ordinance. The Commission investigates complaints to determine whether discrimination may have occurred, and uses its enforcement powers to punish acts of discrimination.
The Office of Compliance promotes a culture of ethical conduct and a commitment to compliance with laws, city policies, procedures, rules and ordinances.
The Department of Cultural Affairs and Special Events (DCASE) is dedicated to enriching Chicago’s artistic vitality and cultural vibrancy.
The Office of Emergency Management and Communications provides citizens of Chicago with prompt and reliable 911 service for police, fire and emergency medical services and coordinates major emergency response.
The Board of Ethics administers Chicago’s Governmental Ethics and Campaign Financing Ordinances, laws adopted to help ensure that City officials and employees avoid conflicts of interests.
The Chicago Department of Family & Support Services works to provide assistance to Chicago’s residents, particularly those most in need, beginning at birth through the senior years.
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.
Promotes fire safety, emergency care and extinguishment of fires.
The Department of Fleet and Facility Management supports the operations of other City Departments by providing high-quality and cost-effective fleet and facility services.
The Department of Human Resources facilitates the effective delivery of city services through the establishment of professional human resources management program.
Independent Police Review Authority (IPRA) is an independent department of the City of Chicago responsible for the intake and investigation of complaints regarding police misconduct.
The City's innovation and information technology organization. DoIT's mission is to enhance delivery of City services through easy, reliable, cost-effective and secure access to information and to promote Chicago's advancement through technology.
The IGO is an independent office dedicated to ensuring honesty and integrity in City government by rooting out corruption, fraud, other misconduct, and waste.
The Department of Law is responsible for providing legal counsel and representation for the City of Chicago, and the departments, officers, and employees of the City.
The License Appeal Commission receives appeals from decisions of the Local Liquor Control Commissioner (Mayor) revoking, suspending, or denying liquor licenses.
The Mayor's Office for People with Disabilities (MOPD) works to make Chicago the most accessible city in the nation on behalf of residents and visitors with disabilities.
Responsible for preparing and executing the City's annual budget. The Office of Budget and Management evaluates the efficiency and efficacy of all City operations and drives management reforms that improve the City's fiscal condition and increase taxpayer value.
The OLIG is an independent, nonpartisan oversight Office whose mission is to investigate allegations of misconduct by members and employees of the Chicago City Council (CCC).
The Department of Planning and Development promotes the comprehensive growth and well-being of Chicago and its neighborhoods.
The CPD website is designed to provide general information about the Chicago Police Department and the Chicago Alternative Policing Strategy. You will also find information on how you can make your neighborhood a safer, more enjoyable place to live.
The Department of Procurement Services provides support to City Departments by procuring over $3 billion worth of quality goods and services annually.
Our Public Health system has a direct impact on the quality of life of this vibrant city.
The Department of Streets & Sanitation handles and average of one million service requests per year, each one making a difference in our communities.
The Chicago Department of Transportation (CDOT) is responsible for public way infrastructure, including planning, design, construction, maintenance and management.
The Chicago Water Agenda defines a number of initiatives and policies to better conserve our fresh water and to wisely manage storm water. In this site we have gathered many resources to give you the information needed to help save our source water.
The City of Chicago Government collaborates with several external entities, including other City agencies, County Government, and State Agencies. Click on the links below to be routed to popular services provided by these non-city agencies, and to find direct links to their websites.