Illinois

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 thevarious 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.
  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.

County Multiplier Phone Number Additional Information
Adams County 3 217-277-2135 Adams County Assessor
Boone County 3 815-544-2958 Boone County
Bureau County 3 Bureau County
Cass 3 Cass County
Champaign County 3 217-384-3760 Champaign County Assessor
Christian 3 Christian County
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 Deeds

Deeds, Clerk Records

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
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
Franklin 3 618-438-4331
Fulton 3 309-547-3041 Fulton County
Greene 3 Greene County
Grundy 3 815-941-3269 Grundy County
Hamilton 3 618-643-3971 Hamilton County Assessor
Henry 3 309-937-3578 Henry County
Iroquois 3 815-432-6978 Iroquois County Assessor
Jackson 3 618-687-7220 Jackson County Assessor
Jefferson 3 618-244-8016 Jefferson County
Jersey 3 (618-618-498-5571 Jersey County
Jo Daviess County 3 815-777-1016
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
Kendall County Kendall County

Kendall County II

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
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
Macoupin 3 217-854-8281 ext. 3 Macoupin County
Madison 3 618-692-6270 Madison County
Marshall 3 Marshall County
Mason 3 309-543-4775 Mason County Assessor
McDonough 3
Macomb 3 Macomb
McHenry County 3 815-334-4290 McHenry County Assessor; 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
Montgomery 3 217-532-9595
Morgan 3 217-243-8557 Morgan County
Moultrie 3 Moultrie County
Ogle 3 815-732-1150 Ogle County 
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
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
Stark 3 Stark County
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

In the state of Illinois the multiplier is 3.

 

Last updated: June 20, 2016 at 16:12 pm