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Cerro Gordo County Voter Registration

Updated June 1, 2026

No Party
11,507
Republican
9,982
Democratic
7,825
Other
252

Total Registered Voters: 29,566

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Auditor

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County Courthouse

220 N. Washington Ave.
Mason City, IA 50401
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M-F 8:00 a.m. to 4:30 p.m.
Closed Holidays
Department Hours May Vary
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