In 2023, Grand Detour, IL had a population of 282 people with a median age of 54 and a median household income of $74,141. Between 2022 and 2023 the population of Grand Detour, IL declined from 302 to 282, a −6.62% decrease and its median household income grew from $71,953 to $74,141, a 3.04% increase.
The 5 largest ethnic groups in Grand Detour, IL are White (Non-Hispanic) (67.7%), Two+ (Hispanic) (27.7%), Other (Hispanic) (4.61%), White (Hispanic) (0%), and Black or African American (Non-Hispanic) (0%).
None of the households in Grand Detour, 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 Grand Detour, IL are U.S. citizens.
In 2023, the median property value in Grand Detour, IL was $162,500, and the homeownership rate was 89.9%.
Most people in Grand Detour, IL drove alone to work, and the average commute time was 24 minutes. The average car ownership in Grand Detour, IL was 2 cars per household.