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County profile
County figures where published; statewide context is used only when a measure is not available by county.
Profiles for counties that share a boundary with Williamson County.
Place-level Census profiles for housing, income, commuting, and population.
MoverMath lists $157,901 as the typical home value in Williamson County, Illinois, based on Zillow's Home Value Index. It is a smoothed estimate of typical value, not a median sale price.
The median household income in Williamson County, Illinois is $65,604, using the Census American Community Survey estimate published on this profile.
The effective property-tax rate shown for Williamson County, Illinois is 1.72%. Census ACS also reports a median annual property-tax bill of $2,690 among owner-occupied homes. Neither figure is a quote for a particular home: its bill depends on the assessment, exemptions and local tax district.
Williamson County, Illinois has grown 0.1% since 2020, according to Census Population Estimates. This change includes migration, births, and deaths.
MoverMath reports 3 homicide deaths per 100,000 residents for Williamson County, Illinois from County Health Rankings and NCHS death certificates. It is a multi-year resident mortality rate, not a count of incidents or a neighborhood-safety rating.
Household income, personal income, local costs, and adjusted income.
Plan a move
Census ACS 1-year estimate.