In 2021, Oak Grove, IL had a population of 411 people with a median age of 48.1 and a median household income of $29,375. Between 2020 and 2021 the population of Oak Grove, IL declined from 427 to 411, a −3.75% decrease and its median household income grew from $29,167 to $29,375, a 0.713% increase.
The 5 largest ethnic groups in Oak Grove, IL are White (Non-Hispanic) (95.9%), White (Hispanic) (2.92%), American Indian & Alaska Native (Non-Hispanic) (0.73%), Two+ (Non-Hispanic) (0.487%), and Black or African American (Non-Hispanic) (0%).
None of the households in Oak Grove, 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 Oak Grove, IL are U.S. citizens.
In 2021, the median property value in Oak Grove, IL was $9,999, and the homeownership rate was 89%.
Most people in Oak Grove, IL drove alone to work, and the average commute time was 28.8 minutes. The average car ownership in Oak Grove, IL was 2 cars per household.