McHenry County Property Assessor (Illinois)

Search for McHenry County, IL property assessment information. Property Assessments include property tax assessments, property valuations, property tax liens, defaults on property taxes, and property assessment appeals.


McHenry County Assessors determine the value of properties and parcels so that the jurisdiction can levy Illinois property taxes. The Assessor's Office maintains current data on every parcel in the district, including records on McHenry County property tax assessments, maps of property lines, and inventories of parcels and structures, as well as the value of all the property in the jurisdiction. McHenry County Tax Assessors may also keep records on reassessments for construction or improvements and other on-site inspections. McHenry County Assessment Offices provide online access to their property assessment records.

Burton Township Assessor Spring Grove IL 1420 Elm Street 60081 815-675-0323

Dunham Township Assessor Harvard IL 21706 West Airport Road 60033 815-943-4444

Greenwood Township Assessor Wonder Lake IL 5211 Miller Road 60097 815-648-4536

Mc Henry Township Assessor Johnsburg IL 3703 North Richmond Road 60051 815-385-0175

Mchenry County Assessor's Office Woodstock IL 220 North Seminary Avenue 60098 815-334-4274

Nunda Township Assessor Crystal Lake IL 3510 Bay Road 60012 815-459-6140


McHenry County Clerks file documents and preserve a range of municipal records in order to maintain an archive for their Illinois municipality. These McHenry County tax assessment records are open to the public. The Clerk's Office has a number of records on property assessments, including real estate excise taxes, tax liens on properties, and the McHenry County property tax assessment formulas. They also keep records on property transactions, deeds, and titles. McHenry County Clerks provide online access to their public property tax records, including documents related to property assessments.

Algonquin Village Clerk Algonquin IL 2200 Harnish Drive 60102 847-658-4322

Mchenry County Clerk Woodstock IL 2200 North Seminary Avenue 60098 815-334-4234

Oakwood Hills Clerk Cary IL 3020 North Park Drive 60013 815-444-9453

Riley Township Clerk Marengo IL 21451 Norway Ct 60152 815-568-7335

Wonder Lake Clerk Wonder Lake IL 4200 Thompson Road 60097 815-728-0839


McHenry County Recorders of Deeds collect public records, primarily documents related to property, and make them available to the Illinois public. The Office of the Recorder of Deeds maintains records on McHenry County property tax assessments, including property and parcel surveys, property tax liens, and property valuations. They also record land transactions within the jurisdiction, including deeds, mortgages, and easements. The McHenry County Recorder provides online databases for public records access of property assessments.

McHenry County Recorder of Deeds Woodstock IL 2200 North Seminary Avenue 60098 815-334-4110


McHenry County Town Halls and City Halls are the chief administrative office that runs a town or city in Illinois. The Town or City Hall maintains records related to the locality, including property assessment records. These McHenry County public assessment records include property value assessments, records of paid and unpaid property taxes, and property tax liens. Town and City Halls also maintain records on land transactions, property sales and transfers, and municipal and zoning boundaries. Property assessment records are available as public records, and many Town and City Halls provide online access to these files.

Crystal Lake City Hall Crystal Lake IL 100 West Woodstock Street 60014 815-459-2020

Harvard City Hall Harvard IL 201 West Front Street 60033 815-943-6468

Marengo City Hall Marengo IL 132 East Prairie Street 60152 815-568-7112

McHenry City Hall McHenry IL 333 South Green Street 60050 815-363-2100

Seneca Township Town Hall Woodstock IL 16506 Garden Valley Road 60098 815-923-2288

Woodstock City Hall Woodstock IL 121 West Calhoun Street 60098 815-338-4300


McHenry County Treasurers and Tax Collectors are responsible for the collection of property tax revenue in Illinois. The Office of the Treasurer and Tax Collector maintains current data on every McHenry County parcel , as well as a number of other property tax assessment records. These records include property assessments, defaults on property taxes, lists of sold parcels, and property valuations. The Treasurer and Tax Collector may also maintain information on McHenry County property auctions and a property's prior liens or foreclosures. McHenry County Treasurers and Tax Collectors provide online databases to access property assessment records.

Mchenry County Treasurer's Office Woodstock IL 2200 North Seminary Avenue 60098 815-334-4000