Welcome

Welcome to the Cook County Assessor's Office Website. Please select from the drop-down menu selections at the top of the page to access the information you need. The Assessor's Office maintains this website as a free public service to provide extensive assessment information to Cook County taxpayers.

Assessment Data Online

Online search and retrieval of parcel data with G.I.S. pictures of residential and nonresidential properties as well as prior and current assessment values. This information is similar to what is found on your "Notice of Proposed Assessed Valuation," mailed by the Assessor’s Office.

This application allows you to interact with property information maintained by the Cook County Assessor's Office.
Here you can view property details such as:

	Parcel Locations and Square Footage
	Assessed Value and Property Characteristics
	Classification Descriptions

	Compare your property to others in your neighborhood
	View street-level property photos
	View aerial photographs and parcel boundaries

In The News

The "Online Homeowner's Corner" is a one-stop solution for homeowners looking to renew exemptions, file an appeal online, or view the status of current exemptions/appeals. Many tools for the homeowners are available here.