United States › Illinois › Decatur CITY · 2020 ACS
Decatur Illinois · 70,522 residents · 43.5 sq mi
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The short version
With 70,522 people, Decatur is a city in Illinois. Median home value sits at $85,500. 21% of adults hold a bachelor's degree or higher. Households here earn about 34% less than in Illinois as a whole. 2% of residents were born outside the United States. Getting to work takes 17 minutes on average.
At a glance
Lower income
below the US median
US median: $66,278
Mid-age
median age 40.2
US median: 38.8
Less educated
21% hold a bachelor's degree
US average: 33%
More affordable
home values down 6%, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 37.2 in 2000
US average: 38.8
Population, 1990 – 2024
68K 73K 77K 81K 85K 1990 2000 2010 2020 2024 Decatur Age distribution, 2020
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Section 02
Income & economy $45,404
−9%inflation adjusted, since 2000
from $33,111 in 2000
US average: $66,278
from $19,009 in 2000
US average: $35,364
Households earning $100K+
from 19.9% in 2009
US average: 43.9%
from 16.5% in 2000
US average: 12.8%
Workforce by industry, 2020
Professional, scientific, technical 4.7%
Public administration 3.3%
Transportation & warehousing 2%
Arts, entertainment, food 1.7%
Agriculture, forestry, fishing 1.3%
Education & health services 1.1%
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$85,500
−6%inflation adjusted, since 2000
from $60,600 in 2000
US average: $265,253
$688
+2%inflation adjusted, since 2000
from $447 in 2000
US average: $1,124
from 66.4% in 2000
41.0% rent
from 2.17 people in 2009
US average: 2.61
from 2.0 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 77%(62,993)
Hispanic / Latino 1.2%(978)
2020
White, non-Hispanic 62.9%(44,371)
Hispanic / Latino 3.1%(2,167)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Hispanic origin
+ 3 more hispanic origin groups with data Ancestry
+ 34 more ancestry groups with data from 17.0% in 2000
US average: 32.9%
High school or higher
from 80.8% in 2000
US average: 88.5%
from 5.7% in 2000
US average: 12.7%
Section 06
Commute & transportation from 11.5 min in 2000
US average: 26.9
from 85.3% in 2009
US average: 75.1%
from 11.8% in 2009
US average: 8.4%
Section 07
Work & employment from 10.0% in 2011
US average: 5.4%
from 58.8% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 30.6% in 2009
US average: 39.3%
Section 08
People & community from 2.2% in 2009
US average: 13.5%
from 13.4% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
Men 15+
Never married 40.5%(10,835)
Women 15+
Never married 38.8%(12,017)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 13.4% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2020
Gulf War (2001 or later) 12.4%(559)
Gulf War (1990s) 14.7%(660)
Share of the 4,498 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Decatur Head to head
Compare Decatur to nearby cities DECATUR VS
Taylorville
Income $57,552 +27%
Home value $104,100 +22%
Population 10,522 −85%
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DECATUR VS
Lincoln
Income $57,340 +26%
Home value $124,300 +45%
Population 12,981 −81%
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DECATUR VS
Mahomet
Income $118,586 +161%
Home value $299,100 +250%
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DECATUR VS
Springfield
Income $66,064 +46%
Home value $162,100 +90%
Population 112,989 +66%
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Frequently asked
How many people live in Decatur, Illinois? Decatur, Illinois has about 70,522 residents according to the 2020 American Community Survey.
What is the median household income in Decatur, Illinois? The typical household in Decatur, Illinois earns about $45,404 a year. Half of households make more than that, and half make less.
Is Decatur, Illinois expensive? In Decatur, Illinois, the median home is worth about $85,500, and the typical rent is about $688 a month.
How educated are people in Decatur, Illinois? About 21.5% of adults age 25 and over in Decatur, Illinois hold a bachelor's degree or higher.
What is the poverty rate in Decatur, Illinois? About 19.4% of people in Decatur, Illinois live below the federal poverty line.
Has Decatur, Illinois grown since 1990? Yes, Decatur, Illinois has shrunk since 1990. The population has lost about 13,363 residents, a change of about -16 percent over that period.
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