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The History of the Cook County Clerk's Office

By  John Mirkovic, Project Lead and Researcher For research inquiries or updates, email [email protected]
… keeping precinct/voters/nominations 1943 Supervise voter registration & certify vote 1943   (Click image for larger …
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Freedom of Information Act

The Cook County Clerk is committed to an open and transparent office that duly informs the public of the important work we do.  Much of the information is already available and accessible online:
… Recorded land records Vital Records Assumed Business Name Registration Budget Main Cook County Budget Information … Board of Commissioners of Cook County. The Clerk is the registration officer under the Cook County Lobbyist … filed in Cook County. It is the office that conducts voter registration and elections in that potion of Cook …
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Marriage Licenses

Before getting married in Chicago or suburban Cook County, couples must obtain a marriage license from the Cook County Clerk's office.   Eligibility Under Illinois law, only eligible persons can marry. Both partners must:
… Illinois State Government has no laws requiring officiant registration or office dedicated to the registration, certification, or licensing of wedding … or your name, register to vote . Go here to check your voter registration and register online . … Marriage Licenses …
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Civil Union Licenses

Before formalizing a union in Chicago or suburban Cook County, a couple must obtain a civil union license from the Cook County Clerk's office.  
… Illinois State Government has no laws requiring officiant registration or office dedicated to the registration, certification, or licensing of wedding … or your name, register to vote . Go here to check your voter registration and register online. … Civil Union Licenses …
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Deputy Registrar

Get Involved Individuals who serve as deputy registrars play a vital role in the democratic process by registering people to vote.
… identity of the person registering to vote, complete the registration card and return it to one of our designated … seven days. The Clerk's office then adds the names to the voter rolls and the new voters will each receive a voter identification card in the mail within a few weeks. …
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2026 Elections

March 17, 2026 Gubernatorial Primary Election
… Primary Election   Date   Event   2/17/2026   Voter registration closes for deputy registrars and local election …
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Vote By Mail

   
…     Any registered suburban Cook County voter may request a mail ballot using this online application. Once we verify your registration and process your application, we will send a … to complete this application online unless you update your voter registration by calling 312.603.0946. Incomplete …
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2024 Elections

November 5, 2024 Presidential Election View all candidates View all referenda View all write-in candidates Info for candidates View your sample ballot Calendar & Signature Requirements for candidates Candidates: Submit your Candidate Statement Schedule of Public Viewing Ballot Counting Data Key Dates for the November 5, 2024 Presidential Election   Date   Event   10/8/2024   Voter registration closes for deputy registrars and local election officials   10/20/2024   Last day to register to vote by online application   10/21/2024   First day of early voting   10/31/2024   Last day to request a mail ballot, including military and overseas voters   11/4/2024   Last day of early voting   11/5/2024   Last day mail ballots can be postmarked   11/5/2024   Election Day  
… 5, 2024 Presidential Election   Date   Event   10/8/2024   Voter registration closes for deputy registrars and local election … Primary Election   Date   Event   2/20/2024   Voter registration closes for deputy registrars and local …
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2025 Elections

April 1, 2025 Consolidated Election Ballot Lottery Results View all candidates View all referenda View all write-in candidates About write-in candidates Info for candidates Calendar & Signature Requirements for candidates Candidates: Submit your Candidate Statement Schedule of Public Viewing Ballot Counting Data Key Dates for the April 1, 2025 Consolidated Election   Date   Event   3/4/2025   Voter registration closes for deputy registrars and local election officials   3/16/2025   Last day to register to vote by online application   3/17/2025   First day of early voting   3/27/2025   Last day to request a mail ballot, including military and overseas voters   3/31/2025   Last day of early voting   4/1/2025   Last day mail ballots can be postmarked   4/1/2025   Election Day  
… 1, 2025 Consolidated Election   Date   Event   3/4/2025   Voter registration closes for deputy registrars and local election … Consolidated Primary Election   Date   Event   1/28/2025   Voter registration closes for deputy registrars and local …
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What ID do I need?

To obtain certain vital records (see special requirements for marriage and civil union licenses below), you are required to submit one or more copies of ID. All forms must be current and valid.
… of ID are required: Social Security Card (or printout) Voter’s Registration Card (within 90 days) W-2 Form (current year) … (within 90 days) Utility Bill (within 60 days) Vehicle Registration Card Active Life Insurance Policy (dated no …