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Seal of the State of Illinois

Williamson County Courthouse - 407 N. Monroe St. Marion, IL 62959

Departments Contact County Assessor

Supervisor of Assessments Office
Main Ext.142
Jeffery A. Robinson Ext.180
Clerk to Board of Review
Flood Plain Coordinator
Plat Officer for Williamson County
Douglas Marlow
Assistant Supervisor - Ext. 190
Brenda Dale
Chief Deed Clerk - Ext. 188
Louise Valco
Deed Clerk - Ext. 186
Cheleste English
Deed Clerk - Ext. ?
Ronda Murphy
Deed Clerk - Ext. 187
Barbara Vinson
Board of Review Secretary - Ext. 181
Susan Lentz
Mobile Home Clerk - Ext. 183
Kenna Eyestone
Clerk - Ext. 184
Lisa Holland
Clerk - Ext. 182
Shawn Conner
Field Lister - Ext. 191
Tom Vaught
Field Lister - Ext. 193
Steve Haynes
Field Lister - Ext. 192
Michelle Dobbins
Clerk - Ext. 194
Angie Chancy
Switchboard Operator - Ext. ?
Anna Long
GIS Mapping Coordinator - Ext. 196
Angie Jeters
GIS Mapping Assistant - Ext. 195

Supervisor of Assessment Office

  • Identify and place a value on approximately 46,000 parcels
  • Exemptions:
    • Owner Occupied exemption-must have ownership in and occupy the property during the assessment year
    • Homestead Exemption-must be 65 years of age during the assessment year, and have ownership in and occupy the property.
    • Senior Citizen Assessment Freeze - you must be 65 years of age during the assessment year and you must have ownership in and occupy the property as of January 1 of the prior assessment year and the entire household income cannot exceed $50,000.
    • Homestead Improvement Exemption-To qualify, the property must be owner-occupied and used exclusively for residential purposes. Any proposed increase in the assessed value must be attributable solely to an added improvement to an existing structure. This exemption is limited to $75,000 fair cash value.
    • Model Home Exemption-To qualify the home must be used solely as a model home for prospective buyers, and not occupied as a dwelling. Application must be filed by December 31, of each assessment year.
    • Veterans & Fraternal Organization Freeze - To qualify applicant must be chartered under Federal Law and own and use the real property on which is located the principal building for the chapter.
  • Register all Mobile Homes in the County