MissionThe mission of the Cook County Assessor’s Office is to deliver accurate and transparent assessments of all residential and commercial properties. We serve every community in the County …

Click here to access our advanced search tool, where you can locate your property by address, PIN, or neighborhood.

For appointments or assistance, please book at a nearby branch. In areas outside the City of Chicago, assistance may be available at local township assessors' offices. Our office will be closed on the …

The Cook County Assessor's Office, situated in Chicago, Illinois, is responsible for delivering accurate and transparent assessments of all residential and commercial properties within Cook County.

Important: This site provides access to the Cook County Assessor’s Office property records database. To access the records, you can search by your Property Index Number (PIN) or by Address.

Dec 3, 2025 · The Cook County Property Tax Portal, created and maintained by the Cook County Treasurer’s Office, consolidates information from the elected officials who take part in the property …

Cook County Treasurer's Office - Chicago, IllinoisThe Cook County Treasurer's Office website was designed to meet the Illinois Information Technology Accessibility Act and the Americans with …

Assessor's Office staff will be available at our Downtown Chicago office, at select branch offices, and at the offices of our local government partners, all on an appointment-only basis. We encourage …