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CITY

Illiopolis

Illinois · 832 residents (2025 est.) · 0.677 sq mi
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The short version

Illiopolis has lower-than-average household income, with a median household income of $63,125. Population has held roughly steady since 2000. 20% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has risen by half since 2000, reaching $100,800. Poverty is rare here, at 6.0% of residents.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 43.3
US median: 38.9
Less educated
20% hold a bachelor's degree
US average: 36%
More affordable
home values down 14%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

Total population
890
−3%since 2000
from 916 in 2000
1990 – 2025
Population density
1,315 / sq mi
−3%since 2000
from 1,353 / sq mi in 2000
US average: 281
Median age
43.3
+17%since 2000
from 37.1 in 2000
US average: 38.9

PEP 2025 EST:832 residents (Census Bureau Vintage 2025, released March 2026)

Population, 1990 – 2024
8108468839199551990201020202024Illiopolis
2024890
1990201020202024
Section 02

Income & economy

Median household income
$63,125
−25%inflation adjusted, since 2000
from $46,442 in 2000
US average: $82,259
1990 – 2024
Per capita income
$31,201
+60%since 2000
from $19,473 in 2000
US average: $44,673
Households earning $100K+
41.0%
+17.9 ptssince 2009
from 23.1% in 2009
US average: 53.3%
Poverty rate
6.0%
+3.0 ptssince 2000
from 3.0% in 2000
US average: 12.5%
Income inequality (Gini)
0.352
−7%since 2010
from 0.378 in 2010
US average: 0.476
Workforce by industry, 2024
Retail trade12.2%
US avg: 9.9%
Information10.4%
US avg: 10.8%
Other services8.9%
US avg: 6.7%
Public administration7.1%
US avg: 4.8%
Agriculture, forestry, fishing6.6%
US avg: 1.6%
Construction6.1%
US avg: 1.2%
Transportation & warehousing4.8%
US avg: 2.2%
Finance & insurance4.3%
US avg: 5.9%
Professional, scientific, technical4.3%
US avg: 5.1%
Wholesale trade3.3%
US avg: 6.9%
Arts, entertainment, food1.3%
US avg: 1.9%
Manufacturing0.5%
US avg: 0.4%
Education & health services0%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$100,800
−14%inflation adjusted, since 2000
from $64,500 in 2000
US average: $376,019
1990 – 2024
Median gross rent
$663
−18%inflation adjusted, since 2000
from $442 in 2000
US average: $1,442
Owner-occupied
81.0%
+3.6 ptssince 2000
from 77.3% in 2000
19.0% rent
Vacancy rate
6.1%
−2.3 ptssince 2009
from 8.4% in 2009
US average: 10.0%
Owner cost-burdened
8.7%
−10.8 ptssince 2009
from 19.5% in 2009
US average: 22.9%
Renter cost-burdened
21.4%
+21.4 ptssince 2009
from 0.0% in 2009
US average: 47.4%
Afford Score
1.6
+15%since 2000
from 1.4 in 2000
1990 – 2024
Gentrification Score
18
RELATED:See current rent listings in Illiopolis on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic98.9%(906)
Black0%(0)
Hispanic / Latino0.1%(1)
Asian0%(0)
Other0%
Diversity Score0.3%(3)
2024
White, non-Hispanic95.1%(846)
Black2%(18)
Hispanic / Latino0.7%(6)
Asian0.8%(7)
Other1.5%(13)
Diversity Score12%(106)
Diversity Score
12
+4245%since 2000
from 0 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
20.0%
+7.6 ptssince 2000
from 12.4% in 2000
US average: 35.6%
High school or higher
87.7%
−1.3 ptssince 2000
from 88.9% in 2000
US average: 89.6%
Graduate degree
6.8%
+3.0 ptssince 2000
from 3.9% in 2000
US average: 14.0%
Section 06

Commute & transportation

Average commute
22.9 min
+29%since 2000
from 17.8 min in 2000
US average: 26.5
Drive alone to work
77.6%
−8.7 ptssince 2009
from 86.3% in 2009
US average: 68.9%
Carpooled to work
4.5%
−2.8 ptssince 2009
from 7.3% in 2009
US average: 8.5%
Public transit
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 3.2%
Worked from home
8.3%
+4.6 ptssince 2009
from 3.7% in 2009
US average: 15.0%
Walked to work
8.3%
+6.1 ptssince 2009
from 2.2% in 2009
US average: 2.4%
Biked to work
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
No vehicle available
1.4%
−0.2 ptssince 2009
from 1.6% in 2009
US average: 8.3%
Section 07

Work & employment

Unemployment rate
2.2%
−10.4 ptssince 2011
from 12.6% in 2011
US average: 5.2%
Labor force participation
56.9%
−16.2 ptssince 2011
from 73.1% in 2011
US average: 63.5%
Self-employed
16.8%
+5.6 ptssince 2009
from 11.2% in 2009
US average: 13.1%
Management & professional
34.6%
−15.6 ptssince 2009
from 50.2% in 2009
US average: 42.5%
Section 08

People & community

Male
54.0%
Unchangedsince 2009
from 54.0% in 2009
Female
46.0%
Unchangedsince 2009
from 46.0% in 2009
Foreign born
1.2%
+0.3 ptssince 2009
from 0.9% in 2009
US average: 14.1%
Veterans
8.1%
−48.3 ptssince 2009
from 56.4% in 2009
US average: 6.2%
With a disability
17.5%
+4.1 ptssince 2012
from 13.4% in 2012
US average: 13.3%
Uninsured
3.9%
−84.1 ptssince 2013
from 88.0% in 2013
US average: 8.4%
Broadband at home
87.5%
+10.5 ptssince 2017
from 77.0% in 2017
US average: 91.0%
English only at home
98.9%
−0.8 ptssince 2016
from 99.7% in 2016
US average: 77.7%
Spanish at home
0.4%
+0.1 ptssince 2016
from 0.3% in 2016
US average: 13.6%
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Compare Illiopolis to nearby cities

ILLIOPOLIS VS
Decatur
Income$51,592−18%
Home value$99,600−1%
Population67,884+8059%
SEE FULL COMPARISON →
ILLIOPOLIS VS
Taylorville
Income$57,552−9%
Home value$104,100+3%
Population10,522+1165%
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ILLIOPOLIS VS
Springfield
Income$66,064+5%
Home value$162,100+61%
Population112,989+13480%
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ILLIOPOLIS VS
Lincoln
Income$57,340−9%
Home value$124,300+23%
Population12,981+1460%
SEE FULL COMPARISON →
Frequently asked

How many people live in Illiopolis, Illinois?

Illiopolis, Illinois has about 890 residents according to the 2024 American Community Survey.

What is the median household income in Illiopolis, Illinois?

The typical household in Illiopolis, Illinois earns about $63,125 a year. Half of households make more than that, and half make less.

Is Illiopolis, Illinois expensive?

In Illiopolis, Illinois, the median home is worth about $100,800, and the typical rent is about $663 a month.

How educated are people in Illiopolis, Illinois?

About 20.0% of adults age 25 and over in Illiopolis, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Illiopolis, Illinois?

About 6.0% of people in Illiopolis, Illinois live below the federal poverty line.

Has Illiopolis, Illinois grown since 1990?

Yes, Illiopolis, Illinois has shrunk since 1990. The population has lost about 44 residents, a change of about -5 percent over that period.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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