Williamson County Property Assessor (Illinois)

Williamson 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 Williamson 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. Williamson County Tax Assessors may also keep records on reassessments for construction or improvements and other on-site inspections. Williamson County Assessment Offices provide online access to their property assessment records.

Williamson County Assessor's Office Marion IL 200 West Jefferson Street 62959 618-997-1301


Williamson County Clerks file documents and preserve a range of municipal records in order to maintain an archive for their Illinois municipality. These Williamson 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 Williamson County property tax assessment formulas. They also keep records on property transactions, deeds, and titles. Williamson County Clerks provide online access to their public property tax records, including documents related to property assessments.

Carterville City Clerk Carterville IL 101 South Division Street 62918 618-985-2252

Herrin City Clerk Herrin IL 300 North Park Avenue 62948 618-942-3175

Williamson County Clerk Marion IL 407 North Monroe Street 62959 618-997-1301


Williamson 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 Williamson 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 Williamson County Recorder provides online databases for public records access of property assessments.

Williamson County Recorder of Deeds Marion IL 407 North Monroe Street 62959 618-997-1301

Williamson 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 Williamson 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.

Cambria City Hall Carterville IL 302 South Richart Street 62918 618-985-6082

Creal Springs City Hall Creal Springs IL 507 North Walnut Grove Road 62922 618-996-2311

Hurst City Hall Hurst IL 111 Bush Avenue 62949 618-987-2513

Johnston City Hall Johnston IL 100 West Broadway Boulevard 62951 618-983-6651

Pittsburg City Hall Pittsburg IL 302 W Avery Ave 62974 618-993-8260


Williamson 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 Williamson 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 Williamson County property auctions and a property's prior liens or foreclosures. Williamson County Treasurers and Tax Collectors provide online databases to access property assessment records.

Johnston Treasurer Johnston IL 500 Washington Ave 62951 618-983-6544

Marion City Treasurer Marion IL 1102 Tower Square Plaza 62959 618-993-8575

Williamson County Treasurer's Office Marion IL 200 West Jefferson Street 62959 618-997-1301