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COUNTY · 2010 ACS

Marion County

Illinois · 39,437 residents · 572.538 sq mi
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The short version

Marion County has notably lower household income than the US average, with a median household income of $38,974. Population has declined 5% since 2000. 14% of adults hold a bachelor's degree or higher, below the national rate of 28%. Median home value is $71,400. Households here earn about 30% less than the Illinois median.

At a glance
Lower income
below the US median
US median: $52,703
Older
median age 41.4
US median: 37.2
Less educated
14% hold a bachelor's degree
US average: 28%
Stable housing
home values roughly flat, inflation adjusted
US median home: $225,659
Section 01

Population & growth

39,437
−5%since 2000
from 41,691 in 2000
1990 – 2025
69 / sq mi
−5%since 2000
from 73 / sq mi in 2000
US average: 261
41.4
+8%since 2000
from 38.4 in 2000
US average: 37.2
Population, 19902024
37K38K39K41K42K1990201020202024Marion County
202437K
1990201020202024
Section 02

Income & economy

$38,974
−13%inflation adjusted, since 2000
from $35,227 in 2000
US average: $52,703
1990 – 2024
$20,493
+19%since 2000
from $17,235 in 2000
US average: $27,286
Households earning $100K+
19.7%
+1.6 ptssince 2009
from 18.1% in 2009
US average: 33.3%
16.5%
+5.2 ptssince 2000
from 11.3% in 2000
US average: 13.8%
0.428
US average: 0.461
Workforce by industry, 2010
Retail trade16.8%
US avg: 10.9%
Information11.8%
US avg: 11.5%
Finance & insurance8.2%
US avg: 5.1%
Professional, scientific, technical7.7%
US avg: 4.2%
Wholesale trade4.4%
US avg: 7.2%
Other services4.2%
US avg: 7%
Public administration3%
US avg: 4.9%
Agriculture, forestry, fishing2.9%
US avg: 1.9%
Transportation & warehousing2.4%
US avg: 3.1%
Arts, entertainment, food2.3%
US avg: 2.4%
Construction2.1%
US avg: 1.4%
Manufacturing0.8%
US avg: 0.5%
Education & health services0.5%
US avg: 0.9%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

$71,400
+5%inflation adjusted, since 2000
from $53,500 in 2000
US average: $225,659
1990 – 2024
$565
+20%inflation adjusted, since 2000
from $371 in 2000
US average: $853
41.1%
−35.6 ptssince 2000
from 76.6% in 2000
25.8% rent
12.0%
+0.9 ptssince 2009
from 11.1% in 2009
US average: 12.1%
22.6%
+0.9 ptssince 2009
from 21.7% in 2009
US average: 30.9%
43.0%
+1.8 ptssince 2009
from 41.2% in 2009
US average: 46.8%
1.8
+21%since 2000
from 1.5 in 2000
1990 – 2024
RELATED:See current rent listings in Marion County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic93.4%(38,951)
Black3.8%(1,593)
Hispanic / Latino0.9%(378)
Asian0.6%(235)
Other0%
Diversity Score12.8%(5,353)
2010
White, non-Hispanic92.4%(36,456)
Black3.9%(1,536)
Hispanic / Latino1.4%(542)
Asian0.6%(224)
Other2.9%(1,157)
Diversity Score20.4%(8,048)
20
+59%since 2000
from 13 in 2000
1990 – 2024
Section 05

Education

13.6%
+1.5 ptssince 2000
from 12.1% in 2000
US average: 27.9%
High school or higher
84.1%
+4.9 ptssince 2000
from 79.1% in 2000
US average: 84.9%
4.5%
+0.4 ptssince 2000
from 4.1% in 2000
US average: 10.2%
Section 06

Commute & transportation

22.5 min
+64%since 2000
from 13.7 min in 2000
US average: 25.2
81.7%
+0.1 ptssince 2009
from 81.6% in 2009
US average: 76.2%
9.9%
−0.1 ptssince 2009
from 10.0% in 2009
US average: 10.4%
0.6%
+0.1 ptssince 2009
from 0.5% in 2009
US average: 4.7%
3.4%
+0.2 ptssince 2009
from 3.3% in 2009
US average: 4.1%
1.9%
−0.5 ptssince 2009
from 2.4% in 2009
US average: 2.8%
0.6%
+0.1 ptssince 2009
from 0.5% in 2009
US average: 0.5%
7.3%
−0.8 ptssince 2009
from 8.1% in 2009
US average: 8.7%
Section 07

Work & employment

14.0%
+0.8 ptssince 2009
from 13.2% in 2009
US average: 12.9%
24.1%
−32.9 ptssince 2009
from 57.1% in 2009
US average: 35.2%
Section 08

People & community

48.7%
+0.4 ptssince 2009
from 48.3% in 2009
51.3%
−0.4 ptssince 2009
from 51.7% in 2009
1.1%
Unchangedsince 2009
from 1.1% in 2009
US average: 12.8%
12.7%
−34.7 ptssince 2009
from 47.4% in 2009
US average: 9.9%
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Frequently asked

How many people live in Marion County, Illinois?

Marion County, Illinois has about 39,437 residents according to the 2010 American Community Survey.

What is the median household income in Marion County, Illinois?

The typical household in Marion County, Illinois earns about $38,974 a year. Half of households make more than that, and half make less.

Is Marion County, Illinois expensive?

In Marion County, Illinois, the median home is worth about $71,400, and the typical rent is about $565 a month.

How educated are people in Marion County, Illinois?

About 13.6% of adults age 25 and over in Marion County, Illinois hold a bachelor's degree or higher.

What is the poverty rate in Marion County, Illinois?

About 16.5% of people in Marion County, Illinois live below the federal poverty line.

Has Marion County, Illinois grown since 1990?

Yes, Marion County, Illinois has shrunk since 1990. The population has lost about 2,124 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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