Oak Grove, IL
Population 335 · Illinois
About Oak Grove, IL
Oak Grove is a small community located in Illinois with a population of 335 residents according to the latest US Census Bureau American Community Survey data. The median household income is $41,912 per year, which is 44% below the national median of $75,149. The median age of 48.6 years is notably older the US median age of 38.9 years, suggesting a more established community with a higher proportion of long-term residents.
Housing Market Overview
The housing market in Oak Grove features a median home value of $0, which is 100% below the national median of $244,900. This makes Oak Grove one of the more affordable markets in the country, potentially attractive for first-time homebuyers. Median monthly rent is $688, 41% below the national average of $1,163/month. Of the 210 total housing units, 89% are owner-occupied (167 units) and 11% are renter-occupied (21 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Oak Grove shows an unemployment rate of 5.6%, which is significantly above the national rate of 3.7%, suggesting economic challenges in the area. The poverty rate stands at 18.2%, above the national average of 12.4%. Workers in Oak Grove have an average one-way commute time of 27 minutes.
Education & Demographics
9.9% of Oak Grove residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The lower educational attainment rate may reflect the area's industry mix, with more employment in trades, manufacturing, or agricultural sectors. The community's demographic composition includes 2.4% White, 0.9% Hispanic or Latino, 0.0% Black or African American, and 0.0% Asian residents, with 0.9% of the population being foreign-born.
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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Cities in Illinois with a similar population size.
Demographics
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Economy & Education
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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 US Census Bureau American Community Survey estimates. This makes it a small community in Illinois.
What is the median household income in Oak Grove?
The median household income in Oak Grove, IL is $41,912 per year, which is 44% below the national median of $75,149.
What is the median home value in Oak Grove?
The median home value in Oak Grove, IL is $0, which is 100% below the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Oak Grove?
The median monthly rent in Oak Grove, IL is $688, which is 41% below the national average of $1,163/month.
What is the unemployment rate in Oak Grove?
The unemployment rate in Oak Grove, IL is 5.6%, compared to the national average of 3.7%. Job seekers may want to research the dominant industries in the area.
Is Oak Grove, IL a good place to live?
Oak Grove offers a moderate cost of living, affordable housing, and growing employment opportunities. With a population of 335 and a median age of 48.6, the city appeals to established professionals and retirees.
How educated is Oak Grove, IL?
9.9% of residents in Oak Grove aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. The educational profile reflects the area's industry mix and employment landscape.
What is the cost of living in Oak Grove?
Key cost-of-living indicators for Oak Grove, IL: median home value is $0 (100% below national), median rent is $688/month, and median household income is $41,912. The home-value-to-income ratio is 0.0x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in Oak Grove?
The poverty rate in Oak Grove, IL is 18.2%, compared to the national average of 12.4%. Residents and prospective movers should be aware of the economic challenges facing parts of this community.
How diverse is Oak Grove, IL?
Oak Grove's population is 2.4% White, 0.9% Hispanic or Latino, 0.0% Black or African American, 0.0% Asian, and 0.0% two or more races. 0.9% of residents are foreign-born.