Treasurer
Location
220 N. Washington Ave.
Mason City, IA 50401
Driving Directions
Contact Information
641-421-3127
641-421-3089 (Fax)
cgtreas@cerrogordo.gov
Hours
Monday - Friday
8:00 a.m. - 4:30 p.m.*
*Last passport appointment at 4:00 p.m.
Holiday Closures
Our Team
Property Tax Deputy
Motor Vehicle Deputy
From the USPS website as of 1/02/2026: "...the date on the postmarks applied at our processing facilities will not necessarily match the date on which the customer’s mailpiece was collected by a letter carrier or dropped off at a retail location." Since Iowa code dictates that we refer to the postmark for property tax and motor vehicle payments to determine penalties and interest, we are urging Cerro Gordo County residents and taxpayers to not wait until the last day to send their payment.
Welcome to the Cerro Gordo County Treasurer’s website. We hope this site will provide you with the information you need and to make contacting our office easier and more efficient. We are committed to carrying out the responsibilities of this office while providing outstanding customer service through a process of continuous evaluation and improvement of the way in which we do business. Our primary functions include tax collection, motor vehicle title and registration, passports, and financial management.
