In 2023, Gillespie, IL had a population of 3.12k people with a median age of 44.7 and a median household income of $76,806. Between 2022 and 2023 the population of Gillespie, IL declined from 3,193 to 3,118, a −2.35% decrease and its median household income grew from $60,924 to $76,806, a 26.1% increase.
The 5 largest ethnic groups in Gillespie, IL are White (Non-Hispanic) (92.3%), Two+ (Non-Hispanic) (6.48%), White (Hispanic) (0.898%), Other (Non-Hispanic) (0.321%), and Black or African American (Non-Hispanic) (0%).
None of the households in Gillespie, 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 Gillespie, IL are U.S. citizens.
In 2023, the median property value in Gillespie, IL was $89,500, and the homeownership rate was 65.2%.
Most people in Gillespie, IL drove alone to work, and the average commute time was 30.5 minutes. The average car ownership in Gillespie, IL was 2 cars per household.