Supervisor of Assessments 
201 West Washington, 
P 0 Box 439
Clinton, IL 61727 
(217) 935-7800 
Office Hours:
8:30a.m. - 4:30p.m.
Monday - Friday

Supervisor of Assessments 
DeWitt County, Illinois 
Sandy Schlosser

Supervisor of Assessments Office 
201 West Washington, P 0 Box 439
Clinton, IL 61727 
(217) 935-7800 
Office Hours: 8:30a.m. - 4:30p.m., Monday - Friday

2021 Exemption Renewals

Forms for the Senior Citizen Homestead, Disabled Persons and Disabled Veterans Standard exemption will be mailed out April 15, 2021. If you have any questions regarding these renewal forms, please contact the Supervisor of Assessments office at 217-935-7800.

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The office of the Supervisor of Assessments was created by state law to provide information to the Department of Revenue. The Assessment Office is responsible for the mass appraisal of all real property in DeWitt County. Personal Property such as Mobile Homes are maintained in the office as well. Sales information and sales reports are compiled for public use from deeds and transfer declarations recorded in the County Clerk's Office. Property record cards are kept up to date with a picture of the building/s and the appraisal information. The aerial maps are maintained daily in the office. There are 10, 777 parcels at this time in DeWitt County. The office administers the following exemptions:

• General Homestead Owner Occupied
• Homestead Improvement
• Senior Citizen Homestead
• Senior Citizen Assessment Freeze  
• Disabled Veterans
• Returning Veterans

Duties of the Supervisor of Assessments:

• Holds annual meeting with Township Assessors
• Serves as chairperson of the Farmland Review Committee  
• Serve as Clerk of the Board of Review
• Maintains an up-to-date property record card system, which lists property index number (pin), the legal description, owners name, class of property and assessment information.
• Equalize assessments by township
• Publish the assessment changes for each township
• Mail Notice of Assessment Changes for each township
• Files assessment exemptions when property owner meets qualifications