Assessor Offices in Jefferson County, Illinois

There are 2 Assessor Offices in Jefferson County, Illinois, serving a population of 38,358 people in an area of 572 square miles. There is 1 Assessor Office per 19,179 people, and 1 Assessor Office per 285 square miles.

In Illinois, Jefferson County is ranked 53rd of 102 counties in Assessor Offices per capita, and 33rd of 102 counties in Assessor Offices per square mile.

List of Jefferson County Assessor Offices

Find Jefferson County, Illinois assessor, assessment, auditor's, and appraiser's offices, revenue commissions, GIS, and tax equalization departments.

Jefferson County Assessor's Office 100 South 10th Street Mount Vernon, IL

Mt Vernon Assessor 811 Harrison Street Mount Vernon, IL

About the Jefferson County Assessor Office

Assessor Offices in Jefferson County, IL are responsible for assessing the values of all taxable property within their jurisdictions. Assessors appraise values of all land and commercial property (real property), and business' fixed asset (personal property). The office determines property tax values, tax rates, maintains and updates the local tax assessment rolls.

Property owners may contact the Department of Assessment for questions about:
  • Jefferson County property tax appeals and challenges
  • Property tax assessments and reassessments
  • Jefferson County GIS maps, plat maps, and property boundaries
  • Delinquent property taxes
  • Jefferson County, IL property tax payments and due dates
  • Assessment rolls and property tax rates

Jefferson County Home & Property Tax Statistics

Find Jefferson County Home Values, Property Tax Payments (Annual), Property Tax Collections (Total), and Housing Characteristics. Data Source: U.S. Census Bureau; American Community Survey, 2018 ACS 5-Year Estimates.

Jefferson County Home Values
 Jefferson CountyIllinois
Median Home Value$94,400$187,200
Median Rental Cost (per month)$661$984
Jefferson County Property Tax Payments (Annual)
 Jefferson CountyIllinois
Median Property Taxes$1,520$4,299
Median Property Taxes (Mortgage)$1,867$4,695
Median Property Taxes (No Mortgage)$1,158$3,552
Jefferson County Property Tax Collections (Total)
 Jefferson CountyIllinois
Property Taxes$21,292,000$16,076,191,800
Property Taxes (Mortgage)$13,121,800$11,131,041,700
Property Taxes (No Mortgage)$8,170,200$4,945,150,100
Jefferson County Housing Characteristics
 Jefferson CountyIllinois
Total Housing Units16,9715,347,268
Occupied Housing Units15,223 (89.7%)4,830,038 (90.3%)
Vacant Housing Units1,748 (10.3%)517,230 (9.7%)
Owner Occupied Housing Units11,065 (72.7%)3,189,035 (66.0%)
Renter Occupied Housing Units4,158 (27.3%)1,641,003 (34.0%)
Housing Units (Mortgage)52.2%63.8%
Housing Units (No Mortgage)47.8%36.2%