Treasurer

To protect the health of our employees and the public, the Ozaukee County Treasurer’s Office has implemented the following changes to operations in response to COVID-19.

Property Tax Payments and Drainage District Payments should be placed in the Ozaukee County drop box located next to the north, middle doors of the Ozaukee County Administration building located at 121 w Main St, Port Washington, WI 53074. Delinquent Property Tax payments may also be mailed with postmark being considered timely if mailed by the last day of the month.  Drainage District Payments can be mailed as well.  Property tax payments may also be paid online. Instruction on how to pay taxes online can be found here: 

On the left side of the screen, click “Pay Taxes Online Instructions”.  Village of Grafton, Town of Grafton, and Village of Bayside residents should contact their municipality to arrange tax payment.

 Please call 262-284-8280 or email treasurer@co.ozaukee.wi.us with questions.

  1. Notice of Appraisal and Sale of Tax Deed Property - minimum bid $45,000


  2. Notice of Appraisal and Sale of Tax Deed Property - minimum bid $5,800

Mission Statement


The Treasurer's Office mission is to provide the highest standards of service to our residents, to support local government and taxpayers with efficient and accurate tax and assessment information. Our fiduciary responsibility is to ensure the sound management of public funds by maximizing earnings, maintaining liquidity, and safekeeping all funds.

Tax Resources