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2026 Illinois Primary Election

2026 Illinois Primary Election header

Cook County Treasurer

The Cook County treasurer is responsible for collecting, safeguarding, investing and distributing property tax funds.

Candidates

Did not participate

Maria Pappas

Incumbent Democrat

Did not participate in the 2026 voter guide.

Latest Coverage

Mayor Brandon Johnson presides over a meeting of the Chicago City Council in October 2024. (WTTW News)

Chicago Voters Won’t Weigh Whether to Tax Millionaires — But Will Be Asked About ShotSpotter, Festivals

Newly appointed U.S. interim Senator, Darline Graham Nordone, with South Carolina Gov. Henry McMaster, right, speaks to members of the press after being appointed of to fill the vacancy created by the passing of her brother, U.S. Senator Lindsey Graham, at the statehouse Monday, July 13, 2026, in Columbia, S.C. (AP Photo / Sean Rayford)

Darline Graham Nordone, Sister of Lindsey Graham, Chosen to Fulfill Remainder of His US Senate Term

Republican Darren Bailey, left, and his running mate, Aaron Del Mar, take questions from reporters after winning the Republican nomination on primary night on March 17, 2026. (Peter Hancock / Capitol News Illinois)

Bailey Campaign Embraces Artificial Intelligence in New Era of Politics

The U.S. Supreme Court is seen Monday, June 29, 2026, in Washington. (AP Photo / Mariam Zuhaib)

Supreme Court Strikes Down Limits on Party Spending in Federal Elections, Backing Republican Appeal

Department of Elections workers sort mail-in ballots for the California primary election at City Hall on Tuesday, June 2, 2026, in San Francisco. (AP Photo / Jeff Chiu, File)

Supreme Court Rules States Can Count Late-Arriving Mailed Ballots, Rejecting Trump-Led Challenge

President Donald Trump stands on stage after speaking at the opening of the Great American State Fair on the National Mall, Wednesday, June 24, 2026, in Washington. (AP Photo / Julia Demaree Nikhinson)

Federal Judge Halts Trump’s Election Executive Order Seeking to Create a Federal Voter List

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