Cook County Assessor 312-443-7550
Property tax appeals, exemptions, and data
Cook County Board of Review – 312-603-5542
Property tax appeals
Cook County Building and Zoning – 312-603-0500
Building permits for unincorporated Cook County
Cook County Clerk’s Office – 312-603-5656
Election or voting questions, Recorder of Deeds, Bureau of Vital Records
Cook County Treasurer – 312-443-5100
Property tax questions, get a copy of or pay your property tax bill
Illinois Department of Human Services – 800-843-6154
Developmental Disabilities, Early Childhood, Family and Community Services, Behavioral Health & Recovery, and Rehabilitation Services