Madison County Assessor

Find Madison County Illinois assessor, assessment, auditor's, and appraiser's office, revenue commissions, GIS, and tax equalization departments. Assessors provide information on property and land tax assessment, property listings, values, valuations, property search, and records.

Name
Alton Township Assessor
Address
102 East Broadway, Alton, Illinois, 62002
Phone
618-462-0671
See Alton Township Assessor Location Details
Name
Edwardsville Assessor
Address
300 West Park Street, Edwardsville, Illinois, 62025
Phone
618-656-6305
Fax
618-656-6326
See Edwardsville Assessor Location Details

Name
Madison County Assessor's Office
Address
157 North Main Street, Edwardsville, Illinois, 62025
Phone
618-692-6270
Fax
618-692-8298
See Madison County Assessor's Office Location Details

Name
Venice Township Assessor
Address
910 Madison Avenue, Madison, Illinois, 62060
Phone
618-452-3033
See Venice Township Assessor Location Details

Assessors by City

What is an Assessor?

An assessor determines the values of properties in a local jurisdiction, such as a county or state. This assessment is then used to determine the taxable value of each property and the corresponding property tax amount. An assessor works with an auditor's office or local revenue commission to determine real estate and property value increases and decreases. The department may work with an appraiser's office on new construction projects to produce property and land tax assessments.

Assessors use a variety of GIS maps and tax equalization tools to determine valuations within their specific boundaries. The assessor determines which properties are exempt from property taxes and ensures that taxpayers aren't overburdened, as well as ensuring that properties aren't undervalued or overvalued. Assessors may provide valuable information for related property searches.