St Clair County Assessor's Office in Belleville, Illinois

About St Clair County Assessor's Office

The St Clair County Assessor's Office, located in Belleville, Illinois, determines the value of all taxable property in St. Clair 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 St. Clair County property taxes owed by individual taxpayers.

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