Illiopolis is a small town of 822 in Illinois, with a median household income of $77,292
and a 2.5% unemployment rate.
Its cost of living index is 90 (US average = 100), which is
10% below the national average.
Strengths:
Illiopolis stands out for an affordable cost of living, below-average home prices, solid school ratings (B-), short average commutes.
Trade-offs:
No major red flags stand out in the available data. Whether Illiopolis is right for you depends on your priorities — the full breakdown is below.
All Illiopolis city data on this page comes from official government sources —
the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.
Cost of Living
Index: 90.5
Illiopolis's overall cost of living index is 90.5,
where 100 represents the US national average.
Living in Illiopolis costs roughly 10% less than the average American city.
Metric
Illiopolis, IL
National Avg
Median Home Value
$91,500
$244,900
Median Monthly Rent
$698
$1,163
Homeownership Rate
75.8%
65.9%
Median Household Income
$77,292
$74,755
Crime & Safety
Higher than Average
Illiopolis's violent crime rate is 540.4 per 100,000 residents
— 42% higher than the national average of ~380 per 100,000.
Violent Crime
540.4 /100k
Property Crime
2963.4 /100k
Vertical marker = national average. Source: FBI UCR Program.
Schools & Education
Illiopolis is served primarily by Sangamon Valley CUSD 9.
The student-to-teacher ratio is 12.0:1
(better than the national average of ~16:1).
Metric
Illiopolis, IL
National Avg
School District
Sangamon Valley CUSD 9
—
Elementary Schools
2
—
Middle Schools
1
—
High Schools
1
—
Student/Teacher Ratio
12.0:1
16:1
Bachelor's Degree or Higher
18.2%
35.4%
High School Diploma or Higher
92.1%
91.1%
Weather & Climate
Illiopolis sees average highs of 34.0°F in January
and 84.7°F in July,
with 38.6 inches of annual precipitation
and 18.7 inches of snow per year.
Illiopolis's cost of living index is 90, where 100 is the national average.
That makes Illiopolis roughly 10% less expensive than a typical US city — a meaningful affordability advantage.
The median home price is $91,500 and median rent is $698/month.
Illiopolis's violent crime rate is 540.4 per 100,000 residents — the national average is ~380 per 100,000. Property crime is 2963.4 per 100,000 (national avg ~2,100). Data from the FBI Uniform Crime Reporting Program.
Public schools in Illiopolis are operated by Sangamon Valley CUSD 9.
The district has 2 elementary, 1 middle, and 1 high schools.
The student-to-teacher ratio is 12.0:1. 18.2% of adults 25+ hold a bachelor's degree or higher.
Illiopolis, IL has a population of 822, a median household income of $77,292, and an unemployment rate of 2.5%.
It offers below-average costs of living, which stretches take-home pay further than in most American cities. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.
Illiopolis averages 34.0°F in January and 84.7°F in July. Annual rainfall is 38.6 inches
with about 18.7 inches of snow per year.
Based on NOAA 30-year climate normals (1991–2020).
Illiopolis, IL is covered by 1 ZIP code: 62539.
The population of Illiopolis, Illinois is 822 with a median age of 40.3. Source: US Census ACS 5-Year Estimates.
Key numbers for living in Illiopolis: cost of living index 90 (100 = US average), median home $91,500, median household income $77,292, crime index 142 (100 = US average, lower is safer), schools rated B-. Whether these are benefits or drawbacks depends on where you're coming from — compare Illiopolis side by side with your current city to see the trade-offs.
