City Services
City Services (non-emergency)
Call 311 or (312) 744-5000
Request service online.
City Services (emergency)
Call 911

Most city services can be accessed or requested by dialing 3-1-1.

Listed below is contact information for several city departments.
For a full list of City Departments and contact information, please click here.

Department of Animal Care & Control
2741 South Western Avenue
Chicago, Il 60608
(312) 747-1406

Department of Aviation
Chicago O'Hare International Airport
Chicago, IL 60666
(800)832-6352

Department of Budget & Management
121 North LaSalle Street, Room 604
Chicago, IL 60602
(312) 744-6670

Department of Buildings
121 North LaSalle Street, Room 900
Chicago, IL 60602
(312) 744-3449

Department of Business Affairs
& Consumer Protection

121 North LaSalle Street, Room 800
Chicago, IL 60602
(312) 744-6060

Chicago Transit Authority
(888) 968-7282

Department of Cultural Affairs & Special Events
78 East Washington Street, 4th Floor
Chicago, IL 60602
(312) 744-3315

Office of Emergency Management
& Communications

1411 West Madison Street
Chicago, IL 60607
(312) 746-9111

Board of Ethics
740 North Sedgwick Street, 5th Floor

(312) 744-9660

Family and Support Services
1615 West Chicago Ave., 5th Floor
Chicago, IL 60622
(312) 743-0300
Office of Children & Youth Services
Senior Services-Area Agency on Aging

Fleet and Facility Management
30 North LaSalle Street, Suite 300
Chicago, IL 60602
(312) 744-3900

Department of Finance
121 North LaSalle Street, 7th Floor
Chicago, IL 60602
(312) 744-2204

Chicago Fire Department
3510 South Michigan Avenue, 2nd Floor
Chicaog, IL 60653
312-745-3705

Inspector General's Office

740 North Sedgwick Street, Suite 200
Chicago, IL 60654
(773) 478-7799

Commission on Human Relations
740 North Sedgwick Street, 3rd Floor
Chicago, IL 60654
(312) 744-4111

Department of Innovation and Technology
50 West Washington, Room 2700
Chicago, IL 60622
(312) 744-5844

Department of Law
121 North LaSalle Street, Suite 600
Chicago, IL 60602
(312) 744-0200

Legislative Inspector General

740 North Sedgwick Street, 3rd Floor
Chicago, IL 60654
(312) 744-2312

Mayor’s Office For People
With Disabilities

121 North LaSalle Street, Room 104
Chicago, IL 60602
(312) 744-7050

Department of Planning and Development
121 North LaSalle Street, 10th Floor
Chicago, IL 60602
(312) 744-4190

Chicago Police Board

30 North LaSalle Street, Room 1220
Chicago, IL 60602

(312-742-4194

Chicago Police Department
3510 South Michigan Avenue
Chicago, IL 60653
(312) 744-4000 (non-emergency)
911 (emergency)

Department of Procurement Services
121 North LaSalle St., Room 806
Chicago, IL 60602
(312) 744-4900

Department of Public Health
333 South State Street, Room 200
Chicago, IL 60604
(312)-747-9884

Chicago Public Library
400 South State Street
Chicago, IL 60605
(312) 747-4300

Department of Streets
& Sanitation

121 North LaSalle Street, Room 1107
Chicago, IL 60602
(312) 744-4611

Department of Transportation
30 North LaSalle Street, Room 1100 Chicago, IL 60602
(312) 744-3600

Department of Water Management
333 South State Street
Chicago, IL 60604
(312) 744-4420