Illinois Property Appraisers & Tax Directory
Directory of all 102 counties in Illinois. Access local property valuation administrators, parcel search GIS maps, and tax appeal boards.
County Property Tax Calculator
Estimated using County's effective tax rate of 2.08% (Assessment ratio: 33.33%)
Illinois County Assessors Directory
Select your county to view the local property appraiser office and parcel search portal.
Adams County
Seat: Quincy
Alexander County
Seat: Cairo
Bond County
Seat: Greenville
Boone County
Seat: Belvidere
Brown County
Seat: Mount Sterling
Bureau County
Seat: Princeton
Calhoun County
Seat: Hardin
Carroll County
Seat: Mount Carroll
Cass County
Seat: Virginia
Champaign County
Seat: Urbana
Christian County
Seat: Taylorville
Clark County
Seat: Marshall
Clay County
Seat: Louisville
Clinton County
Seat: Carlyle
Coles County
Seat: Charleston
Cook County
Seat: Chicago
Crawford County
Seat: Robinson
Cumberland County
Seat: Toledo
DeKalb County
Seat: Sycamore
De Witt County
Seat: Clinton
Douglas County
Seat: Tuscola
DuPage County
Seat: Wheaton
Edgar County
Seat: Paris
Edwards County
Seat: Albion
Effingham County
Seat: Effingham
Fayette County
Seat: Vandalia
Ford County
Seat: Paxton
Franklin County
Seat: Benton
Fulton County
Seat: Lewistown
Gallatin County
Seat: Shawneetown
Greene County
Seat: Carrollton
Grundy County
Seat: Morris
Hamilton County
Seat: McLeansboro
Hancock County
Seat: Carthage
Hardin County
Seat: Elizabethtown
Henderson County
Seat: Oquawka
Henry County
Seat: Cambridge
Iroquois County
Seat: Watseka
Jackson County
Seat: Murphysboro
Jasper County
Seat: Newton
Jefferson County
Seat: Mount Vernon
Jersey County
Seat: Jerseyville
Jo Daviess County
Seat: Galena
Johnson County
Seat: Vienna
Kane County
Seat: Geneva
Kankakee County
Seat: Kankakee
Kendall County
Seat: Yorkville
Knox County
Seat: Galesburg
Lake County
Seat: Waukegan
LaSalle County
Seat: Ottawa
Lawrence County
Seat: Lawrenceville
Lee County
Seat: Dixon
Livingston County
Seat: Pontiac
Logan County
Seat: Lincoln
McDonough County
Seat: Macomb
McHenry County
Seat: Woodstock
McLean County
Seat: Bloomington
Macon County
Seat: Decatur
Macoupin County
Seat: Carlinville
Madison County
Seat: Edwardsville
Marion County
Seat: Salem
Marshall County
Seat: Lacon
Mason County
Seat: Havana
Massac County
Seat: Metropolis
Menard County
Seat: Petersburg
Mercer County
Seat: Aledo
Monroe County
Seat: Waterloo
Montgomery County
Seat: Hillsboro
Morgan County
Seat: Jacksonville
Moultrie County
Seat: Sullivan
Ogle County
Seat: Oregon
Peoria County
Seat: Peoria
Perry County
Seat: Pinckneyville
Piatt County
Seat: Monticello
Pike County
Seat: Pittsfield
Pope County
Seat: Golconda
Pulaski County
Seat: Mound
Putnam County
Seat: Hennepin
Randolph County
Seat: Chester
Richland County
Seat: Olney
Rock Island County
Seat: Rock Island
St. Clair County
Seat: Belleville
Saline County
Seat: Harrisburg
Sangamon County
Seat: Springfield
Schuyler County
Seat: Rushville
Scott County
Seat: Winchester
Shelby County
Seat: Shelbyville
Stark County
Seat: Toulon
Stephenson County
Seat: Freeport
Tazewell County
Seat: Pekin
Union County
Seat: Jonesboro
Vermilion County
Seat: Danville
Wabash County
Seat: Mount Carmel
Warren County
Seat: Monmouth
Washington County
Seat: Nashville
Wayne County
Seat: Fairfield
White County
Seat: Carmi
Whiteside County
Seat: Morrison
Will County
Seat: Joliet
Williamson County
Seat: Marion
Winnebago County
Seat: Rockford
Woodford County
Seat: Eureka
Illinois Property Tax Laws & Rules
General Homestead Exemption reduces equalized assessed value (EAV) by $10,000 in Cook County and $8,000 in all other counties.
Senior Citizens Homestead Exemption ($8,000 in Cook, $5,000 elsewhere) plus Senior Assessment Freeze. 100% property tax exemption for veterans with 70%+ disability.
Within 30 calendar days from the date of the official township/county assessment publication.
Appeals are filed before the: County Board of Review & Illinois Property Tax Appeal Board (PTAB).
Frequently Asked Questions
What is the average property tax rate in Illinois?
The average effective property tax rate in Illinois is approximately 2.08%. Actual tax bills depend on your county, municipality, and local school district levies.
How are properties assessed in Illinois?
Under Illinois law, properties are assessed at a statutory assessment ratio of 33.33% of fair market value by the local County Assessor / Supervisor of Assessments.
When is the deadline to appeal property taxes in Illinois?
In Illinois, property valuation appeals must generally be filed by: Within 30 calendar days from the date of the official township/county assessment publication. Appeals are heard by the local County Board of Review & Illinois Property Tax Appeal Board (PTAB).
What homestead exemptions are available in Illinois?
General Homestead Exemption reduces equalized assessed value (EAV) by $10,000 in Cook County and $8,000 in all other counties.
State Tax Authority
Agency: Illinois Department of Revenue - Property Tax Division
Visit Official State Tax Agency