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