Tammy Logsdon, Assessor
PO Box 14
Monticello MO

Contact Us

You May Reach Us at 573-767-5209 or By Filling Out Form Below

    Lewis County Assesor

    The Lewis County Assessor’s Office is responsible for establishing the fair market value of “Real or Personal” property within Lewis County as of the tax date. This tax burden is distributed among those responsible for payment. The Assessor’s Office is to respond to concerns and questions of property owners in Lewis County in a professional and courteous manner. For questions concerning the aspects of what the County Assessor’s procedures are and how they are executed, please contact me at any time by phone or email.

    The Assessor's Office maintains a website where you can search our real property maps. Please visit

    Lewis County Assessor’s Office information:

    • Real Estate Assessments
    • Personal Property Assessments
    • Mapping
    • Non-Assessment Cards for Vehicles
    • Book/Page

    Real Estate:

    • Real property is reappraised or reassessed every two years by state law; it is reassessed every odd numbered year, i.e. 2013, 2015, 2017. Even numbered years, i.e. 2014, 2016, 2018, the Assessor looks for New Construction of improvements or Losses of improvements from the previous tax assessment year. The Assessor determines to put any new construction at full or partial value upon its state of completion as of January 1st of that tax assessment cycle.

    Personal Property:

    • Every January the Lewis County Assessor’s Office mails out Personal Property Assessment Forms. If you move within or move out of Lewis County, or change your address, please contact the Assessor’s Office of this change. The Assessor’s Office does not automatically know when property owners move in and out of the county.


    • The Assessor’s Office is responsible for creating and maintaining property ownership maps within Lewis County, we currently have approximately 8,800 mapped parcels that are constantly changing due to surveys or subdividing property. These line placements are essentially used for tax assessment purposes only. The Lewis County Assessor’s Office has a computerized mapping system called GIS. It has made it easier to generate data for finding parcel information within certain districts, subdivision, cities, or radiuses of a road, etc.