Allendale, IL
Population 491 · Illinois
About Allendale, IL
Allendale is a small community located in Illinois with a population of 491 residents according to the latest US Census Bureau American Community Survey data. The median household income is $70,500 per year, which is 6% below the national median of $75,149. The median age of 48 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 Allendale features a median home value of $83,500, which is 66% below the national median of $244,900. This makes Allendale one of the more affordable markets in the country, potentially attractive for first-time homebuyers. Median monthly rent is $642, 45% below the national average of $1,163/month. Of the 191 total housing units, 95% are owner-occupied (172 units) and 5% are renter-occupied (10 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Allendale shows an unemployment rate of 21.5%, which is significantly above the national rate of 3.7%, suggesting economic challenges in the area. The poverty rate stands at 11.5%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in Allendale have an average one-way commute time of 27.9 minutes.
Education & Demographics
13.0% of Allendale 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 0.6% White, 0.2% Hispanic or Latino, 0.0% Black or African American, and 0.2% Asian residents, with 1.8% of the population being foreign-born.
Cost of Living in Allendale, IL
Compared to national averages, Allendale has a median household income of $70,500 (6% below the national median of $75,149). Home values average $83,500, which is 66% below the national median. Monthly rent at $642 is 45% below the US average of $1,163. Within Illinois, Allendale's income is 6% below the state average of $75,072, and home values are 50% below the state median of $165,779.
Why Live in Allendale, IL?
Allendale offers affordable housing with a median home value of $83,500, below the US average of $244,900, and rent that’s lower than the national average at $642/month, and a low poverty rate of 11.5%, better than the national average.
Potential considerations include median household income ($70,500) that falls below the national average. However, Allendale’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Allendale has a population of 491 with a median age of 48 years. Compare Allendale 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 Allendale
What is the population of Allendale, IL?
The population of Allendale, IL is 491 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 Allendale?
The median household income in Allendale, IL is $70,500 per year, which is 6% below the national median of $75,149.
What is the median home value in Allendale?
The median home value in Allendale, IL is $83,500, which is 66% below the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Allendale?
The median monthly rent in Allendale, IL is $642, which is 45% below the national average of $1,163/month.
What is the unemployment rate in Allendale?
The unemployment rate in Allendale, IL is 21.5%, compared to the national average of 3.7%. Job seekers may want to research the dominant industries in the area.
Is Allendale, IL a good place to live?
Allendale offers a moderate cost of living, affordable housing, and growing employment opportunities. With a population of 491 and a median age of 48, the city appeals to established professionals and retirees.
How educated is Allendale, IL?
13.0% of residents in Allendale 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 Allendale?
Key cost-of-living indicators for Allendale, IL: median home value is $83,500 (66% below national), median rent is $642/month, and median household income is $70,500. The home-value-to-income ratio is 1.2x, indicating relatively affordable housing relative to local incomes.
What is the poverty rate in Allendale?
The poverty rate in Allendale, IL is 11.5%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is Allendale, IL?
Allendale's population is 0.6% White, 0.2% Hispanic or Latino, 0.0% Black or African American, 0.2% Asian, and 0.0% two or more races. 1.8% of residents are foreign-born.