Assessor Offices in Knox County, Illinois

There are 2 Assessor Offices in Knox County, Illinois, serving a population of 51,374 people in an area of 717 square miles. There is 1 Assessor Office per 25,687 people, and 1 Assessor Office per 358 square miles.

In Illinois, Knox County is ranked 65th of 102 counties in Assessor Offices per capita, and 45th of 102 counties in Assessor Offices per square mile.

List of Knox County Assessor Offices

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

Galesburg City Assessor 121 West Tompkins Street Galesburg, IL

Knox County Assessor's Office 121 South Prairie Street Galesburg, IL

About the Knox County Assessor Office

Assessor Offices in Knox 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:
  • Knox County property tax appeals and challenges
  • Property tax assessments and reassessments
  • Knox County GIS maps, plat maps, and property boundaries
  • Delinquent property taxes
  • Knox County, IL property tax payments and due dates
  • Assessment rolls and property tax rates

Knox County Home & Property Tax Statistics

Find Knox 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.

Knox County Home Values
 Knox CountyIllinois
Median Home Value$83,100$187,200
Median Rental Cost (per month)$631$984
Knox County Property Tax Payments (Annual)
 Knox CountyIllinois
Median Property Taxes$1,665$4,299
Median Property Taxes (Mortgage)$1,781$4,695
Median Property Taxes (No Mortgage)$1,499$3,552
Knox County Property Tax Collections (Total)
 Knox CountyIllinois
Property Taxes$29,017,900$16,076,191,800
Property Taxes (Mortgage)$16,032,200$11,131,041,700
Property Taxes (No Mortgage)$12,985,700$4,945,150,100
Knox County Housing Characteristics
 Knox CountyIllinois
Total Housing Units23,9435,347,268
Occupied Housing Units20,830 (87.0%)4,830,038 (90.3%)
Vacant Housing Units3,113 (13.0%)517,230 (9.7%)
Owner Occupied Housing Units13,627 (65.4%)3,189,035 (66.0%)
Renter Occupied Housing Units7,203 (34.6%)1,641,003 (34.0%)
Housing Units (Mortgage)51.3%63.8%
Housing Units (No Mortgage)48.7%36.2%