St Clair County Assessor's Office in St. Clair County, Illinois

When visiting the county assessor's office, bring your property's parcel number or street address to quickly locate your assessment record, and bring supporting documentation if you are disputing a valuation. St Clair County Assessor's Office is located at 10 Public Square, Belleville, IL. Many assessor offices also maintain online portals where you can review your assessed value and exemption status before visiting in person.

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.

• Property assessment values and annual reassessment notices for parcels in St Clair County Assessor's Office's jurisdiction
• Homestead, senior citizen, veteran, and disability exemption applications
• Formal assessment appeals and informal review requests
• GIS parcel maps, property boundary data, and ownership record corrections