Functions of the St. Clair County Assessor's Office
It is the function of the Assessor to administer an accurate, equitable and timely assessment of all real property in St. Clair County. This mandated function includes but is not limited to the following:
Monitor and comply with the Illinois State Statutes and the Illinois Department of Revenue procedures.
Apply qualified exemptions.
Provide proper taxpayer information of assessments through mailed notices and publication.
Timely certification of the completed assessment roll to the Board of Review to facilitate timely tax calculation and billing as required by statue.
Defend decisions when an appeal is made to the Illinois Property Tax Appeal Board.
Real property in St. Clair County is assessed on a quadrennial basis. The assessments are alternated among 22 townships in the County.
The office hours are M-F 8am - 5pm.
Our staff can answer questions regarding the calculation of property record cards and the verification of property ownership. We can assist those wishing to view or compare sales of properties throughout the County. Applications are available in the Assessor's Office and our staff can provide assistance in filling out these forms. Call 825-2704.
Mobile Home Assessments-
Organizations, service clubs, community groups and churches may request a representative of the Assessor's Office to make a presentation before their membership. Representatives are prepared to provide information on the assessment process and tax related topics. We can also provide staff for additional help. A speaker can be requested by calling 618-277-6600, ext. 2518.
Phone: 618-277-6600, 2517, 2519, 2515, 2653, 2655, 2520, 2501 or 2506
Customer Service Team
Regional Forestry Manager - Mark Brown - 618-295-2877
Springfield Office - 217-785-8284