Williamson County Assessment

Search for Williamson 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.


Williamson 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 Williamson County Illinois property taxes. At the Williamson 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 Williamson County IL. Their records also list the property owners, prior owners, and any sales or transfers.

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


Williamson County Clerks maintain public records for their municipality, usually at the Williamson County or local level. As part of this process, Clerks keep records on Williamson County property assessments. This can include residential, commercial, and personal property assessments, which are used to calculate property taxes. Clerk records include Williamson 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 Williamson County IL. Assessment records also include the current and former property owners and any property sales or transfers.

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