Cerro Gordo County Auditor’s Office
220 North Washington Avenue
Mason City, IA 50401
What is your fax number?
Our fax number is 641-421-3139.
When is your office open?
The Auditor’s Office is open Monday through Friday from 8:00 a.m. until 4:30 p.m., except holidays. Exceptions to those hours are when state law requires the office hours to be extended for the filing of nomination papers, voter registration and absentee voting.
What is the phone number for the Clerk of Court?
The phone number for the Clerk of Court is 641-424-6431.
What is the phone number for the Mason City City Hall?
The phone number for the Mason City City Hall is 641-421-3600.
Where is the County Engineer's Office located?
The address of the County Engineer’s Office is 2716 South Federal Avenue, Mason City. The phone number is 641-424-9037.
Where is the Public Defender's Office located?
The Public Defender is located in the Brick and Tile Building, 103 East State Street, Suite 210, Mason City, IA 50401. Their phone number is (641) 423-4181.
What is the phone number for the landfill?
The phone number for the Landfill of North Iowa is 641-357-5452.
I am starting a business. Are there any permits that I need from the county?
Depending on the type of business, you should inquire with the County Health Department 641-421-9300, the Iowa Department of Revenue and Finance 800-367-3388, and the city where the business will be located.
Is there a notary in the courthouse? Is there a charge to have my signature notarized?
There are several notaries among various offices in the courthouse. There is no charge to have your signature notarized.
Where can I purchase a plat book?
The plat book is available in the County Auditor’s Office for $27.00, payable by cash or check. An updated plat book is published in November of every year.
How often does the Board of Supervisors meet?
The Board of Supervisors hold regular sessions at 10:00 a.m. on Tuesdays. Occasionally, the Board meets in special sessions at various times throughout the week. Click here to get the current regular and special sessions agenda.
How do I change the mailing address for my tax statement?
You may change your mailing address at the County Auditor’s Office. Or you may complete the Request to Change Mailing Address form and mail it or drop it off at the County Auditor's office.
Was I selected for jury duty because I am registered to vote?
Jurors are randomly drawn by a computer among a current voter registration list and a current motor vehicle operators list. After a juror has served one month, they are eligible to be a juror again after two years have expired.
How can I find out what work was done in the drainage district that I received an assessment for?
The Auditor’s Office retains records of claims for work done in each supervisor and trustee drainage district. You are welcome to stop by the office and look through the claims and the drainage district file in order to determine what work was done.