Cook County Treasurer's Office

Government AdministrationIllinois, United States201-500 Employees

The Cook County Treasurer's Office is a government agency based in Chicago, serving more than 1.8 million property owners across Cook County. It administers the second-largest property tax collection and distribution system in the United States, collecting more than $16 billion annually and distributing funds to roughly 2,200 local government agencies, including schools, cities, libraries, parks, and public health districts. Led by Treasurer Maria Pappas, the office provides taxpayers with direct access to property tax data, refunds, payment options, and community resources through CookCountyTreasurer.com and verified social media channels.

Under Illinois law, the Treasurer securely receives, manages, and disburses public revenues, files financial reports with the Cook County Board, and oversees refunds for overpayments or court-ordered reductions. The office maintains an investment policy designed to safeguard public funds, ensure legal compliance, support diversification, and provide liquidity to meet obligations on time. In November 2023, it introduced an online tool that shows year-to-year changes for each property tax bill and demonstrates how tax dollars are allocated, reflecting ongoing modernization and efforts toward transparency and efficiency.

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