Mason County Tax Assessor


Mason Tax Assessor offices are responsible to carry out the mandate of Illinois in Mason county. The law mandates that all real properties are subject to taxation unless exemption is imposed. Tax assessments are necessary in support to the required services to IL residents. Tax assessments go to services such as those provided for law enforcement, education, fire protection, parks and recreation, and many more.

The Mason county directory portal for local tax assessor offices provides a comprehensive guide to the public. The site includes the name of the assigned tax assessor office for easy reference and related transaction.


Mason Tax Assessor: Mason County Supervisor of Assessments

Tax Assessor Office Address: Mason County Courthouse, 125 North Plum St., Havana IL 62644

Phone: (309) 543-4775

Fax: N/A

Website: http://www.masoncountyil.org/assessment.htm

Zip Code: 309

Office Hours: Central

Schedule an Appointment with Mason County, Illinois Property Tax Assessor

The Mason county, IL tax assessor office provides the necessary services to estimate the real property value within its jurisdiction. The property value is an essential component in computing the property tax bills. The Mason tax assessor office is also tasked to provide supplemental bills, business property taxes, and other vital information for transparency.

Contact your Mason tax assessor office for tax information and other related inquiries and concerns.