June 19, 2024

Department of Equalization


To accurately identify, list, assess and classify all taxable properties to achieve fairness and equity in values for the preparation of the annual assessment roll in a timely manner, while educating property owners of the appraisal process and their options to appeal, as well as learn of available assistance programs.

To be a model of assessment administration with a reputation for delivering impartial, accurate, and understandable assessments that exceed statutory requirements while providing our customers with prompt, courteous and professional service.

Basis for determining valuation for tax purposes–Cost, market and income approaches to appraisal considered. The director shall individually assess each tract of real property at its fair market value. In determining the fair market value of property, the director may not adopt a lower or different standard of value because it is to serve as a basis of taxation. The director may not adopt as a criterion of value the price for which a tract of real property would sell at a forced sale, or in the aggregate with all other tracts of real property in the county. The director shall determine the fair market value by appropriate consideration of the cost approach, the market approach, and the income approach to appraisal. The director shall consider and document all elements of such approaches that are applicable prior to a determination of fair market value.

“Fair market value” and “full and true value” defined. As used in this chapter and §§ 10-28-12, 10-28-13, 10-29-9, 10-29-9.1, 10-33-14.1, 10-35-10.1, 10-37-8, 10-37-9.1, 10-38-1, and 10-38-14, the term, fair market value, and the term, full and true value, mean the price in money that property will bring in a competitive and open market under all conditions requisite to a fair sale between a willing buyer and a willing seller, each acting prudently and with full knowledge of the relevant facts, and assuming the price is not affected by any undue stimulus.

Office Phone: (605) 995-8613
Mailing Address:
200 E 4th AVENUE

Assessor/Administrative Assistant: Carla Wittstruck
Email: [email protected]

Assessor: Jared Olsen
Email:  [email protected]

Assessor: Crystal Longhenry
Email: [email protected]

Assessor: Jason Raymond
Email: [email protected]

Database Coordinator: April Vennard
Email: [email protected]


Attention Farmers: If you have land that has been flooded for 3 consecutive growing seasons, you may be eligible for a valuation adjustment. Contact DOE

Beginning March 2023, all property cards will be available on our GIS website. 

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Assessor Facts and Frequently asked Questions


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