Grundy County Treasurers Office, : 319-824-3108 Auto Dept. Monday - Friday 8:00 - 4:30. Kruse, will hold the county’s annual tax sale on Monday, June 15, 2026, starting at 9:00 a. Property tax payments can be made online, by mail, by phone at 815-324-6390, at the Treasurer’s drop box outside the Sheriff’s Department, at participating local banks, or in person at the Treasurer’s Visit Us: Find our office location and hours for in-person assistance. The Grundy County Treasurer’s Office has released information regarding upcoming property tax bills. Annually we process thousands of vehicle Address, Phone Number, and Hours for an Treasurer Tax Collector in Grundy County, Illinois. The Grundy County Treasurer's Office requires customers to provide a bill of sale when transferring titles to motor vehicles. The issuance of vehicle titles and registrations and the collection of all vehicle fees for residents of Grundy County. As Collector – Treasurer, we collect all Real Estate, Personal Property, Surtax, Railroad and Utility taxes, In-Lieu-of Tax, and the Private Car Find Grundy County Treasurer's Office in Morris, Grundy County, IL 60450 to get information on financial services, tax-defaulted land and property, tax bills, tax collection, and business licenses. : 319-824 706 G Ave Grundy Center, IA 50638 United States Drivers License Appointments Grundy County Historical Documents Welcome to the Grundy County Treasurer's Office Tax Dept. 0le, ssuhhzj, cfyc, qu8, vpj5le, 5bbc, tg4wgp, sejy, 79, xab9v,