Boone County Assessor's Office in Belvidere, Illinois

About Boone County Assessor's Office

The Boone County Assessor's Office, located in Belvidere, Illinois, determines the value of all taxable property in Boone County, IL. Taxable property includes land and commercial properties, often referred to as real property or real estate, and fixed assets owned by businesses, often referred to as personal property. Property assessments performed by the Assessor are used to determine the Boone County property taxes owed by individual taxpayers.

• Boone County, IL property tax assessments
• Property tax appeals and reassessments
• Paying property tax bills and due dates
• Property tax rates and tax roll
• Boone County GIS maps, property maps, and plat maps
• Property records and deeds in Boone County