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Property tax appeal 2026 by city

Cook County cities and villages often sit in more than one township, and each township has its own appeal dates. Pick your city to see its townships and 2026 deadlines.

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Type your address: we show your township, deadline and how your assessment compares

Cities and their townships

CityTownships (share of parcels)
Arlington HeightsWheeling 82%, Elk Grove 17%, Palatine <1%
BerwynBerwyn 100%
BrookfieldProviso 50%, Lyons 41%, Riverside 8%
Buffalo GroveWheeling 100%
BurbankStickney 100%
Calumet CityThornton 100%
Chicago HeightsBloom 100%
CiceroCicero 100%
Des PlainesMaine 80%, Elk Grove 18%, Wheeling 2%
DoltonThornton 100%
ElginHanover 100%
Elk Grove VillageElk Grove 66%, Schaumburg 34%
Elmwood ParkLeyden 100%
EvanstonEvanston 100%
Evergreen ParkWorth 100%
GlenviewNorthfield 81%, Maine 9%, New Trier 7%, Niles 4%
HarveyThornton 93%, Bremen 7%
Hoffman EstatesSchaumburg 61%, Palatine 23%, Hanover 11%, Barrington 5%
HomewoodBloom 45%, Thornton 31%, Rich 13%, Bremen 11%
La GrangeLyons 100%
LansingThornton 81%, Bloom 19%
LemontLemont 100%
MattesonRich 100%
MaywoodProviso 100%
Morton GroveNiles 78%, Maine 22%
Mount ProspectElk Grove 53%, Wheeling 47%
NilesMaine 67%, Niles 33%
NorthbrookNorthfield 98%, Wheeling 2%
Oak ForestBremen 100%
Oak LawnWorth 100%
Oak ParkOak Park 100%
Orland ParkOrland 98%, Palos 3%
PalatinePalatine 100%
Palos HillsPalos 100%
Park RidgeMaine 85%, Norwood Park 10%, Leyden 6%
Rolling MeadowsPalatine 71%, Elk Grove 28%
SchaumburgSchaumburg 92%, Hanover 5%, Palatine 3%
SkokieNiles 100%
South HollandThornton 100%
StreamwoodHanover 96%, Schaumburg 4%
Tinley ParkOrland 59%, Bremen 32%, Rich 9%
WestchesterProviso 100%
WheelingWheeling 100%
WilmetteNew Trier 100%
WinnetkaNew Trier 100%

Our count of residential parcels from Cook County open data (Parcel Universe), not official figures.

Deadlines for all 38 townships

Sources

Dates last checked against the Assessor's calendar and the Board of Review's published dates on October 9, 2026. If anything here differs from the county's own pages, the county's pages win.