The Cerro Gordo County Courthouse and courts will not be opening on Monday March 16th, 2026 until 9AM due to Severe Weather.
County Assessor

Information and Resources

A collection of helpful assessor resources.
Beacon
Iowa State Association of Assessors
International Association of Assessing Officers (IAAO)
Iowa State Association of Counties
Iowa Department of Revenue and Finance
Iowa Property Assessment Appeal Board
Code of Iowa
Tax Credits Users' Manual

County Assessor

Our Team Commercial Reappraisal Project Press Release 5/20/2024 Assessor's Duties Board of Review Conference Board Credits and Exemptions Important Dates Information and Resources Property Owner’s Legal Responsibility Property Search (Beacon) FAQ Department Home

County Courthouse

220 N. Washington Ave.
Mason City, IA 50401
Contact · Report a Concern

Courthouse Hours

M-F 8:00 a.m. to 4:30 p.m.
Closed Holidays
Department Hours May Vary
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