Cook County Assessment

Search for Cook County IL county assessment information. A county assessment search provides information on property assessments, residential assessment, commercial assessment, personal property assessment, property appraisals, property taxes, property maps, assessment reports, assessment forms, assessment exemptions, the assessment process, appealing assessments, property tax formulas, and unclaimed parcels.


Cook County Assessors are responsible for determining the value of all property in their municipality, and they also keep records on the assessment process. Property appraisals of residential, commercial, and personal property are used to calculate Cook County Illinois property taxes. At the Cook County level, Assessors create reports on their property assessments, including searchable property maps, detailed assessment reports, forms related to assessments, and information about exemptions. They also provide information on the assessment process, calculating property taxes, and how property owners can appeal assessed values. Assessors maintain records on apartments, commercial buildings, condos, home improvements, property sales, residential buildings, and vacant lots in Cook County IL. Their records also list the property owners, prior owners, and any sales or transfers.

Bremen Township Assessor Oak Forest IL 15350 Oak Park Avenue 60452 708-687-8220

Cook County Assessor Maywood IL 1500 Maybrook Drive 60153 708-865-6032

Cook County Assessor Markham IL 16501 Kedzie Avenue 60428 708-232-4100

Cook County Assessor's Office Chicago IL 118 North Clark Street 60602 312-603-5300

Evanston Township Assessor Evanston IL 846 Dodge Avenue 60202 847-332-2465

Hanover Township Assessor Bartlett IL 250 Illinois 59 60103 630-837-0301

Riverside Township Assessor Riverside IL 27 Riverside Road 60546 708-447-7700

Rolling Meadows Assessor Rolling Meadows IL 2121 Euclid Avenue 60008 847-818-2444

Wheeling Township Assessor Arlington Heights IL 1616 North Arlington Heights Road 60004 847-259-1515

Worth Township Assessor Alsip IL 11601 South Pulaski Road 60803 708-371-5557


Cook County Clerks maintain public records for their municipality, usually at the Cook County or local level. As part of this process, Clerks keep records on Cook County property assessments. This can include residential, commercial, and personal property assessments, which are used to calculate property taxes. Clerk records include Cook County property assessments, property maps, assessment reports, assessment forms, and assessment listings. They may also provide information on the process used to assess properties, the formula for calculating property taxes, and the appeals process for an incorrect assessment. These records cover residential buildings, apartments, townhouses, condos, commercial buildings, and unclaimed parcels, including records on home improvements and property sales in Cook County IL. Assessment records also include the current and former property owners and any property sales or transfers.

Arlington Heights Clerk Arlington Heights IL 33 South Arlington Heights Road 60005 847-368-5540

Barrington Hills Village Clerk Barrington IL 112 Algonquin Road 60010 224-484-8418

Calumet City Clerk Calumet IL 204 Pulaski Road 60409 708-891-8110

Chicago City Clerk Chicago IL 5674 South Archer Avenue 60638 312-745-1100

Cook Coounty Clerk Maywood IL 1500 Maybrook Drive 60153 708-865-6040

Cook County Clerk Chicago IL 69 West Washington Street 60602 312-603-0996

Cook County Clerk Rolling Meadows IL 2121 Euclid Avenue 60008 847-818-2850

Des Plaines City Clerk Des Plaines IL 1420 Miner Street 60016 847-391-5310

Elk Grove Village Clerk Elk Grove IL 901 Wellington Avenue 60007 847-357-4040

Evanston City Clerk Evanston IL 2100 Ridge Avenue 60201 847-866-2925

Franklin Park Village Clerk Franklin Park IL 9500 Belmont Avenue 60131 847-671-8242

Hickory Hills Clerks Hickory Hills IL 8652 95th Street 60457 708-598-4800

La Grange Village Clerk La Grange IL 53 South La Grange Road 60525 708-579-2316

Lansing Clerk Lansing IL 3141 Ridge Road 60438 708-895-7200

Markham Clerk Markham IL 16501 Kedzie Avenue 60428 708-210-4551

Matteson Village Clerk Matteson IL 4900 Village Commons 60443 708-283-4950

Morton Grove City Clerk Morton Grove IL 6101 Capulina Avenue 60053 847-470-5220

Oak Forest City Clerk Oak Forest IL 15440 Central Avenue 60452 708-687-4050

Oak Lawn Clerk Oak Lawn IL 9446 Raymond Avenue 60453 708-499-7738

Palos Park Clerk Palos Park IL 8999 West 123rd Street 60464 708-448-6150

Palos Township Clerk Palos Hills IL 10802 South Roberts Road 60465 708-598-4449

Riverdale Village Clerk Riverdale IL 157 West 144th Street 60827 708-841-2125

South Holland Clerk South Holland IL 16226 Wausau Avenue 60473 708-210-2900

Summit Village Clerk Summit IL 7321 West 59th Street 60501 708-563-4823

Thornton Village Clerk Thornton IL 115 East Margaret Street 60476 708-877-4456

Tinley Park Clerk Tinley Park IL 16250 Oak Park Avenue 60477 708-532-7700

Western Springs Village Clerk Western Springs IL 1440 Hillgrove Avenue 60558 708-246-1170

Willow Springs Village Clerk Willow Springs IL 1 Village Cir 60480 708-467-3700