Cook County, Illinois

Cook County Property Taxes

Property taxes in Cook County are proportional to assessed property values. Therefore, a higher assessed property value means a higher tax bill. In an effort to estimate fair market prices, the Assessor re-estimates a property's value once every 3 years (each year 1/3 of Cook County properties are reassessed).

By law, the assessed value of every property in Cook County may be appealed each year even though the Assessor re-values only 1/3 of them.

If a property's assessed value is successfully appealed during a reassessment year, this means that the property owner will save money for 3 straight years.

Townships

Cook County has 38 townships:

Township	Appeals Opened	Appeals Closed
River Forest	2/7/2020	5/1/2020
Riverside	2/11/2020	5/1/2020
Evanston	2/19/2020	5/1/2020
Norwood Park	2/20/2020	5/1/2020
Rogers Park	2/24/2020	5/1/2020
Oak Park	2/27/2020	5/1/2020
New Trier	3/5/2020	5/1/2020
Barrington	3/13/2020	5/1/2020
Palos	3/13/2020	5/1/2020
Calumet	4/20/2020	5/26/2020
Palatine	5/6/2020	6/10/2020
Wheeling	5/14/2020	6/19/2020
Berwyn	5/18/2020	6/23/2020
Lemont	5/27/2020	7/2/2020
West Chicago	6/12/2020	7/20/2020
Worth	6/17/2020	7/23/2020
Leyden	6/23/2020	7/29/2020
Stickney	6/26/2020	8/3/2020
Elk Grove	6/26/2020	8/4/2020
Lake View	7/1/2020	8/5/2020
Lyons	7/10/2020	8/14/2020
Maine	7/21/2020	8/26/2020
Orland	7/22/2020	8/27/2020
Cicero	7/24/2020	8/31/2020
Schaumburg	7/29/2020	9/1/2020
Hyde Park	8/20/2020	9/24/2020
Thornton	8/21/2020	9/25/2020
Jefferson	8/28/2020	10/2/2020
Proviso	8/31/2020	10/5/2020
Hanover	9/9/2020	10/15/2020
Northfield	9/15/2020	10/21/2020
Bremen	9/16/2020	10/22/2020
Lake	9/23/2020	10/29/2020
Niles	9/24/2020	10/30/2020
Rich	9/24/2020	10/30/2020
North Chicago	9/25/2020	11/2/2020
South Chicago	10/6/2020	11/10/2020
Bloom	10/8/2020	11/12/2020