In 2022, Williamson, IL had a population of 154 people with a median age of 51.7 and a median household income of $55,750. Between 2021 and 2022 the population of Williamson, IL declined from 173 to 154, a −11% decrease and its median household income grew from $51,346 to $55,750, a 8.58% increase.
The 5 largest ethnic groups in Williamson, IL are White (Non-Hispanic) (95.5%), Two+ (Non-Hispanic) (2.6%), Two+ (Hispanic) (1.3%), White (Hispanic) (0.649%), and Black or African American (Non-Hispanic) (0%).
None of the households in Williamson, IL reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
100% of the residents in Williamson, IL are U.S. citizens.
In 2022, the median property value in Williamson, IL was $61,000, and the homeownership rate was 73.8%.
Most people in Williamson, IL drove alone to work, and the average commute time was 30.1 minutes. The average car ownership in Williamson, IL was 2 cars per household.