Illiopolis, IL
Population 854 · Illinois
About Illiopolis, IL
Illiopolis is a small community in Illinois with a population of 854 residents. The median household income is $74,219 per year, which is above the national average. The median age in Illiopolis is 45.5 years.
Housing in Illiopolis has a median home value of $96,500 and median monthly rent of $675. Of the 383 total housing units, the majority are owner-occupied, with 286 owner-occupied and 71 renter-occupied units.
The unemployment rate in Illiopolis is 2.0% and the poverty rate is 4.3%. 18.4% of residents hold a bachelor's degree or higher. The average commute time is 23.9 minutes.
Cost of Living in Illiopolis, IL
Compared to national averages, Illiopolis has a median household income of $74,219 (1% below the national median of $75,149). Home values average $96,500, which is 61% below the national median. Monthly rent at $675 is 42% below the US average of $1,163. Within Illinois, Illiopolis's income is 1% below the state average of $75,072, and home values are 42% below the state median of $165,779.
Why Live in Illiopolis, IL?
Illiopolis offers affordable housing with a median home value of $96,500, below the US average of $244,900, and rent that’s lower than the national average at $675/month, and a strong job market with an unemployment rate of just 2.0%. Additionally, the city features a low poverty rate of 4.3%, better than the national average, and short commute times averaging just 23.9 minutes.
Potential considerations include median household income ($74,219) that falls below the national average. However, Illiopolis’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Illiopolis has a population of 854 with a median age of 45.5 years. Compare Illiopolis with other cities to see how it stacks up, or explore all cities in Illinois.
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Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
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Frequently Asked Questions about Illiopolis
What is the population of Illiopolis, IL?
The population of Illiopolis, IL is 854 according to the latest Census data.
What is the median household income in Illiopolis?
The median household income in Illiopolis, IL is $74,219 per year.
What is the median home value in Illiopolis?
The median home value in Illiopolis, IL is $96,500.
What is the average rent in Illiopolis?
The median monthly rent in Illiopolis, IL is $675.
What is the unemployment rate in Illiopolis?
The unemployment rate in Illiopolis, IL is 2.0%.