Oak Grove, IL
Population 335 · Illinois
About Oak Grove, IL
Oak Grove is a small community in Illinois with a population of 335 residents. The median household income is $41,912 per year, which is below the national average. The median age in Oak Grove is 48.6 years.
Housing in Oak Grove has a median home value of $0 and median monthly rent of $688. Of the 210 total housing units, the majority are owner-occupied, with 167 owner-occupied and 21 renter-occupied units.
The unemployment rate in Oak Grove is 5.6% and the poverty rate is 18.2%. 9.9% of residents hold a bachelor's degree or higher. The average commute time is 27 minutes.
Cost of Living in Oak Grove, IL
Compared to national averages, Oak Grove has a median household income of $41,912 (44% below the national median of $75,149). Home values average $0, which is 100% below the national median. Monthly rent at $688 is 41% below the US average of $1,163. Within Illinois, Oak Grove's income is 44% below the state average of $75,072, and home values are 100% below the state median of $165,779.
Why Live in Oak Grove, IL?
Oak Grove offers affordable housing with a median home value of $0, below the US average of $244,900, and rent that’s lower than the national average at $688/month.
Potential considerations include median household income ($41,912) that falls below the national average. However, Oak Grove’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Oak Grove has a population of 335 with a median age of 48.6 years. Compare Oak Grove with other cities to see how it stacks up, or explore all cities in Illinois.
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Other Cities in Illinois
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Oak Grove
What is the population of Oak Grove, IL?
The population of Oak Grove, IL is 335 according to the latest Census data.
What is the median household income in Oak Grove?
The median household income in Oak Grove, IL is $41,912 per year.
What is the median home value in Oak Grove?
The median home value in Oak Grove, IL is $0.
What is the average rent in Oak Grove?
The median monthly rent in Oak Grove, IL is $688.
What is the unemployment rate in Oak Grove?
The unemployment rate in Oak Grove, IL is 5.6%.