The Clerk's office registers business names known as "assumed names" (or DBA) for new businesses in accordance with Illinois law.
The Cook County Clerk's office keeps official records of births that occur in Chicago and suburban Cook County. Please click below to be...Read more
What is the 2020 Census?
- The U.S. Census counts every resident in the United States.
As of July 1, 2018, E-Filing became mandatory in Illinois for all Civil Areas (except Quasi Criminal, Housing and Wills). The Illinois Supreme...Read more
Online Case Information
The Clerk of the Circuit Court of Cook County provides on-line case information as a public service. This service...Read more
The Cook County Clerk's office keeps official records of deaths that occur in Chicago and suburban Cook County.
Under state law, you may...Read more
The Domestic Relations Division of the Clerk of the Circuit Court holds the records for dissolution (divorce), legal separation and invalidity for...Read more
The Cook County Clerk's office provides non-certified copies of vital records for the purpose of genealogical research.
Under Illinois law...Read more
Records and Reports
This information is to assist the public in obtaining reports and records from the Office of the Medical Examiner....Read more
Cook County Vital Records keeps official records of marriages that occur in Chicago and suburban Cook County.
A marriage license is filed...Read more
Before getting married in Chicago or suburban Cook County, couples must obtain a marriage license from the Cook County Clerk's office.