Illinois *
 

A general link to some counties is here

County

Multiplier

Phone Number

Additional Information

(Searchable Databases in bold.)

Adams County

3

217-277-2135

Adams County Assessor

Boone County

3

815-544-2958

Boone County (by property number only)

Bureau County

3

Bureau County (through Fike and Fike)

Cass

3

Cass County (through Beacon)

Champaign County

3

217-384-3760

 Champaign County Assessor

Christian

3

Christian County (through Fike and Fike)

Clark County

3

217-826-5815

Clark County Assessor

Clinton County

3

618-594-2464 Ext. 640

Clinton County Assessor

Coles County

3

217-348-0508 or 258-0508

Coles County Assessor

Cook County **

 **

312-443-7550

Cook County Assessor

Cook County Recorder of Deeds

As of April 2012, Assessor, Deeds, Clerk and Treasurer Records

Cook **

(Apartments, 6+ units)

6.25 in tax year 2009, 7.7 in tax year 2010, 10 percent in tax year
2011, and subsequent years.

 "

 

 

Cook (Residential)

10

 "

 

Cook (Commercial)

4

 "

 

Cook (Industrial)

4

 "

 

Cook (Not for Profit) 

4

 "

 

DeKalb County

3

815-895-7120

DeKalb County GIS

DeWitt

3

DeWitt County (through Fike and Fike)

Douglas County

3

217-253-3031

Douglas County

DuPage County

3

630-682-7000 or 7024

DuPage County

Addison (Township)

3

630-530-8161

 Addison Township Assessor 

Clarendon Hills (city)

3

708-968-2100

  

Naperville (Township)

3

630-355-2444

Naperville Township Assessor

Effingham

3

217-342-6711

Effingham County Assessor

Ford

3

 

Ford County (lists township assessors)

Franklin

3

618-438-4331

 

Fulton

3

309-547-3041

Fulton County

Greene

3

Greene County (through Fike and Fike)

Grundy

3

815-941-3269

Grundy County (through Fike and Fike)

Hamilton

3

618-643-3971

100 S. Jackson St, 3rd Fl, McLeansboro, IL

Hamilton County Assessor

Henry

3

309-937-3578

Henry County

Iroquois

3

815-432-6978

Iroquois County Assessor (links to township assessors too)

Jackson

3

618-687-7220

Jackson County Assessor

Jefferson

3

618-244-8016

Jefferson County

100 S 10th St #2

Mt Vernon, IL

Jersey

3

(618-618-498-5571

Jersey County

Jo Daviess County

3

815-777-1016

Jo Daviess Asssessment Supervisor, 330 N. Bench St., Galena IL 61036

Kane County

3

630-208-3818

 Kane County Assessor  (links to townships)

Kane County Property Search

Geneva 

3

630-232-3600

  

Aurora (Township)

-

630-896-7792

 

Kankakee

3

815-937-2945

Kankakee County

Direct to Search

Kendall County

 

 

Kendall County (list of township assessors)

Kendall County

Oswego (township)

 

630-554-3214

Oswego Township

Knox County

3

309-345-3845

Knox County

Lake County

3

847-377-2050

 Lake County Assessor 

GIS

Antioch (Township)

3

 847-360-6378

 Antioch Township Assessor 

Benton (Township)

3

847-746-2069

Benton Township

Ela (Township)

3

847-438-8370

Ela Township Assessor

Freemont (Township)

 3

847- 223-2846

Freemont Township Assessor

Libertyville

3

847-362-5900

 

LaSalle

3

815-434-8233

LaSalle County

Direct to Search

Lee

3

815-288-4483

Lee County

Livingston

3

815-844-7214

Livingston County Assessor

Logan

3

217-732-9635

Logan County Treasurer

Macon County

3

217-424-1364 

Macon County (through Fike & Fike)

Macoupin

3

217-854-8281 ext. 3

Macoupin County

Madison

3

618-692-6270

Madison County

Marshall

3

 

Marshall County (through Fike and Fike)

Mason

3

309-543-4775

Mason County Assessor

McDonough

3

Macomb

3

Macomb

McHenry County

3

815-334-4290 

McHenry County Assessor (in spreadsheets by township; township map here)

Algonquin (Township)

3

847-639-2700

 

McHenry  (Township)

3

815-385-0175

McHenry Assessor 

McLean County

 3

309-888-5180

McLean County

Bloomington

 3

309-828-6016

City of Bloomington

Monroe

3

618-939-8681

Monroe County (through Fike and Fike)

Montgomery

3

217-532-9595

 

Morgan

3

217-243-8557

Morgan County (through Beacon)

Moultrie

3

Moultrie County (through Fike and Fike)

Ogle

3

815-732-1150

Ogle County  (through Beacon)

Peoria

3

309-672-6910

Peoria County

Peoria GIS

Perry

3

618-357-2209

 

Pope

3

618-683-6231

Pope County

Pulaski

3

Pulaski County (through Fike and Fike)

Randolph

3

618-826-5000

  

Rock Island County

3

309-558-3660

 Rock Island Assessor

Moline

3

309-764-3559

Moline Township

St. Clair County

3

618-277-6600

St. Clair Assessor

Sangamon County

3

217-753-6805

Sangamon Assessor 

Scott County

3

217-742-5751

 

Shelby

3

 

Shelby County (through Fike and Fike)

Stark

3

 

Stark County (through Fike and Fike)

Stephenson

3

 

Stephenson Assessor

Tazewell

3

309-477-2275

Tazewell Assessor

Vermillion

3

217-554-1940 or 1941

Vermillion Assessor

Whiteside

3

815-772-5196

Whiteside Assessor

Will County

3

815-726-5446 or 815-740-4648

 Will County Assessor

DuPage (township)

3

630-759-1315

DuPage Township Assessor

Frankfort (township)

3

815-464-3180

Frankfort Township Assessor 

Lockport

 3

708-301-8166

  

Winnebago County

 3

 815-319-4460

Winnebago County Supervisor of Assessments

 Search

GIS

Loves Park 

3

815-987-3024

 

Rockford (township)

3

Rockford Township

Woodford

3

309-467-3708

Woodford County

* Statewide the multiplier is 3.

** The Cook County Assessor’s Office is implementing the 10/25 Ordinance, a measure simplifying assessment levels passed by the County Board in fall 2008. In general, under the ordinance, the assessment level of residential properties is 10% of market value; for industrial and commercial properties, it is 25% of market value – HOWEVER, there are some exceptions for certain classes of property – see below.

The market adjustment is being coordinated with the 2009 triennial reassessment of the city of Chicago, which the County Assessor’s Office recently began. The city reassessment notices were mailed starting in June 2009.  The city of Chicago was last reassessed in 2006.

 

DIVISION 2. CLASSIFICATION SYSTEM FOR ASSESSMENT
Sec. 74-64. Market value percentages.
The Assessor shall assess, and the Board of Review shall review, assessments on real estate in the
various classes at the following percentages of market value:
(1) Class 1: 10 percent.
(2) Class 2: 10 percent.
(3) Class 3: 16 percent, in tax year 2009, 13 percent in tax year 2010, 10 percent in tax year
2011, and subsequent years.
(4) Class 4: 25 percent
(5) Class 5a: 25 percent.
(6) Class 5b: 25 percent
(7) Class 6b: 10 percent for first ten years and for any subsequent ten-year renewal periods;
if the incentive is not renewed, 15 percent in year 11and 20 percent in year 12.
(8) Class C: Industrial properties: 10 percent for first ten years, 15 percent in year 11 and 20
percent in year 12; commercial properties: 10 percent for first ten years, 15 percent in
year 11and 20 percent in year 12.
(9) Class 7a: 10 percent for first ten years, 15 percent in year 11 and 20 percent in year 12.
(10) Class 7b: 10 percent for first ten years, 15 percent in year 11 and 20 percent in year 12.
(11) Class 8: 10 percent for first ten years and for any subsequent ten-year renewal periods; if
the incentive is not renewed, 15 percent in year 11 and 20 percent in year 12.
(12) Class 9: 10 percent for an initial ten-year period, renewable upon application for
additional ten-year periods.
(13) Class S: 10 percent for the term of Section 8 contract renewal under the mark up ton
market option, as defined herein, and for any additional terms of renewal of the Section 8
contract under the mark up to market option.
180
(14) Class L, renewable properties: 10 percent for first ten years and for any subsequent ten year
renewal periods; if the incentive is not renewed, 15 percent in year 11 and 20
percent in year 12; commercial properties: 10 percent for first ten years, 15 percent in
year 11 and 20 percent in year 12.
Effective date: This Ordinance Amendment shall be effective for the 2009 tax year.
Approved and adopted this 17th day of September 2008.
Approved and adopted this 17th day of September 2008.

The Chicago Tribune also maintains a searchable database of metro Chicago real estate transactions that allows you to find the closing price of area homes sold since 1993 at Chicago Tribune Homes.

 

Other information about Illinois tax assessors and detailed county information can be found at the  Illinois Chief County Assessment Officers Home Page.
 

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Last Updated on 07/15/2017
Updates to c-pulawski@comcast.net