Michelle Smith, Supervisor of Assessments
Mason County Courthouse
125 N. Plum St
Havana, IL 62644-0077
Phone: 309-543-4775, option 4
2026 Board of Review Appeal Deadline 11/30/2026
Useful Links
- GIS Map
- Property Tax Search / Parcel Data
- Mason County Farm Sales
- Mason County Commercial Sales
- Mason County Residential Sales
- Illinois Department of Revenue
- Illinois Supervisor of Assessments
- Parcel Shape Files
- Board of Review Rules
- Assessment Notices of Value Change Manito Review
- Assessment Notices of Value Change Banner Times
- Assessment Notices of Value Change Mason County Democrat
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