The St. Croix County Treasurer’s office is dedicated to serve the public and other units of government in a fair, efficient and effective manner. The St. Croix County Treasurer collects property taxes including first installment taxes for 16 municipalities due January 31st, postponed taxes due July 31st, and all delinquent property taxes.  The County Treasurer also collects and deposits all county monies.  This department also researches and issues tax deed applications, manages lottery credits, and holds tax records as well as assessed values.