Supervisor of Assessments

The Supervisor of Assessments Office identifies and places a value on approximately 52,000 parcels.

Jeffery A. Robinson, C.I.A.O.

Clerk to Board of Review / Flood Plain Coordinator / Plat Officer for Williamson County / Supervisor of Assessments

Supervisor of Assessments
Williamson County Administration Building
407 N. Monroe Street, Suite 205
Marion, IL 62959

Phone: 618-998-2189
Phone: 618-997-1301 Ext. 1181

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Learn About Exemptions Learn How Farmland Is Assessed View Assessment Change Publication Learn About The Board of Review View Williamson Co. Flood Plain Ordinance View Williamson Co. Subdivision Ordinance Research Property Assessments Read IL Property Tax Code

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