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Official Website for Madison County, Iowa


Contact Information


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


Monday - Friday 

8:00 am - 4:30 pm


(515) 462-4303 


Bridgette Allen

Chief Deputy


Shawn Nigg 

Assessment Technician


Duties of the Assessor

Real Estate Search


Plat Map

The Assessor is charged with several administrative and 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
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