Official Website for Madison County, Iowa

Madison County, Iowa - Assessor

Real Estate Search


Plat Map

Duties of the Assessor

The Assessor is charged with several administrative & statutory duties; however, the primary duty and responsibility is to cause to be assessed all real

property within their jurisdiction except that which is otherwise provided by law.


 This would include residential, commercial, multi-residential, industrial and agricultural classes of property.

 Real property is revalued every two years.

 The effective date of the assessment is January 1st of the current year.

 The assessor determines a full or partial value of new construction, or improvements depending upon the state of completion as of January first.

Property Owner's Legal Responsibility
Tax Credits and Exemptions
Assessor's Conference Board
Things to Remember

Board of Review

Boards of Review play an important role in the property tax process by responding to assessment appeals and reviewing assessments within their jurisdiction.

The 3-member Board consists of a farmer, a licensed real estate broker and contractor from Madison County.


Dates to Remember:


 January 1: Effective date of current assessment

 April 1: Assessment notices mailed

 April 2-25: Property owners may request an information review of their assessment

 April 2-30: Period for filing assessment protests with local Board of Review

 May 1 - Adjournment: Board of Review Meets

 October 9-31: Protest Period to file with Board of Review for properties affected by changes in value as a result of a Department of Revenue Equalization Order

 Petition to Local Board of Review - Regular Session  

 Petition to Local Board of Review - Special Equalization Session  

Assessor's Office Contact Information

Madison County Annex
PO Box 152 201 W Court Ave
Winterset, Iowa 50273

Monday - Friday 8:00am - 4:30pm
Phone Number: (515) 462-4303

Assessor: Joni J Hopkins

Chief Deputy Assessor: Jessica Aldridge

Deputy/Appraiser/GIS Technician: Ryan Hobart