The Assessor, the Auditor and the Tax Collector each play a role in property tax administration. The key responsibilities of the Assessor’s Office are:

  • Locates, inventories and identifies the ownership of all taxable property in El Dorado County
  • Determines a taxable value for all property subject to property taxation
  • Surrenders an accurate assessment roll to the Auditor-Controller's Office prior to July 1st
  • Determines and applies all legal exemptions

Mission Statement

Our mission is to establish property values fairly and equitably for all taxpayers in El Dorado County and to provide exceptional service to the public.

Jon DeVille Photo

Jon DeVille

El Dorado County Assessor

Meet Your Assessor

"I am honored to serve as your County Assessor. I am committed to establishing fair and accurate property values and innovating office operations to better serve El Dorado County Taxpayers."



The Assessor's office would like to extend our sincere sympathy to property owners who have suffered a loss as a result of the Mosquito fire.  We have created a comprehensive guide that details various aspects of property tax law that provides for property tax relief for victims of a wildfire or natural disaster. Please take a moment to review the Mosquito Fire Property Tax Calamity Guide.  A §170 Application for Reassessment of Damaged or Destroyed Property and an address change form are included in the guide. We hope that this information helps you understand the process. If you have any further questions, please call our office at (530) 621-5719, or send an email to

If you are looking for general Mosquito Fire information, please click HERE.