Welcome to the Supervisor of Assessments Office!

Welcome to the Henderson County Supervisor of Assessments home page. I have worked in the Henderson County Assessment Office since 1999 and have served as the Henderson County Supervisor of Assessments since 2003. My responsibilities are the coordination of countywide assessments, equalizing assessments, applying exemptions, serving as the Clerk of the Board of Review, and chairing the County Farmland Assessment Review Committee.

In addition to these responsibilities, the Assessment Office keeps and maintains a large amount of information to assist in the assessment process such as:

  • Owner name and mailing address
  • Property sales data
  • Physical characteristics and general information on all buildings—square footage, age, condition, number of plumbing fixtures, photos and sketches
  • Parcel maps
  • Exemptions
  • Farmland calculations
  • Non-Homestead Exempt parcels

The Supervisor of Assessments Office is also responsible for overseeing the township assessors and reviewing their work in valuing real estate. The Assessment Office strives to equitably assess each parcel at the level prescribed by law.

Melinda Clark, CIAO-I
Henderson County Supervisor of Assessments

Learn More

Click logo below to learn more about the services provided by the Henderson County Assessor:

Contact Us

Melinda Clark, CIAO-I
Supervisor of Assessments


Henderson County Assessor's Office
Henderson County Courthouse
PO Box 342
307 Warren St
Oquawka, IL 61469
Phone: (309) 867-3291

Monday - Friday
8:00 am - 4:00 pm


Department Staff

Sheila Forbes

Lynne Gittings