Decatur, Illinois Population 2022

69,402
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Decatur is a city located in Macon County Illinois. It is also the county seat of Macon County. With a 2020 population of 69,402, it is the 17th largest city in Illinois and the 584th largest city in the United States. Decatur is currently declining at a rate of -0.80% annually and its population has decreased by -1.59% since the most recent census, which recorded a population of 70,522 in 2020. Spanning over 47 miles, Decatur has a population density of 1,640 people per square mile.

The average household income in Decatur is $59,490 with a poverty rate of 19.39%. The median rental costs in recent years comes to $688 per month, and the median house value is $85,500. The median age in Decatur is 40.2 years, 37.7 years for males, and 41.9 years for females.

Decatur Demographics

According to the most recent ACS, the racial composition of Decaturwas:

  • White: 70.24%
  • Black or African American: 22.55%
  • Two or more races: 5.40%
  • Asian: 1.05%
  • Other race: 0.43%
  • Native American: 0.24%
  • Native Hawaiian or Pacific Islander: 0.08%
The current population of Decatur, Illinois is 69,402 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 70,522.

Decatur, Illinois Population 2022

2021 and 2022 population is estimated by projecting the 2019 numbers.

Year Population Growth Growth Rate
2010110,7870.00%
2011110,684-103-0.09%
2012110,134-550-0.50%
2013109,561-573-0.52%
2014108,515-1,046-0.96%
2015107,343-1,172-1.09%
2016106,383-960-0.90%
2017105,399-984-0.93%
2018104,504-895-0.86%
2019104,009-495-0.48%
2020103,514-495-0.48%
2021103,019-495-0.48%

Decatur Metro Area Population by Year

Population by Race

Race Population Percentage
White50,47270.24%
Black or African American16,20522.55%
American Indian and Alaska Native1730.24%
Asian7561.05%
Native Hawaiian and Other Pacific Islander610.08%
Some Other Race3110.43%
Two or More Races3,8795.40%
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Decatur Population by Race

Decatur Population Pyramid 2022

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Decatur Median Age

39.8


Total

37.7


Male

41.2


Female

Decatur Adults

There are 56,753 adults, (14,556 of whom are seniors) in Decatur.

Decatur Age Dependency

Age Dependency Ratio

34.5

Old Age Dependency Ratio

35.8

Child Dependency Ratio

Decatur Sex Ratio

Female

38,349

53.37%

Male

33,508

46.63%

Decatur Population by Age

Decatur Renter vs Owner Occupied by Household Type

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Decatur Household Types

Type Owner Renter
Married83.8%16.2%
Male63.2%36.8%
All61.8%38.2%
Non Family51.8%48.2%
Female38.5%61.5%

61.8%

Rate of Home Ownership

Decatur Households and Families

Type Count Average Size Owned
All31,0732.261.8
Married11,1702.9383.8
Male1,1543.2363.2
Female4,4293.4638.5
Non Family14,3201.1651.8

3

Average Family Size

2.2

Average Household Size

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Decatur Households by Type

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Education Attained Count Percentage
Less Than 9th Grade1,3082.63%
9th to 12th Grade3,8977.85%
High School Graduate17,65635.55%
Some College12,08124.32%
Associates Degree4,0488.15%
Bachelors Degree6,81113.71%
Graduate Degree3,8657.78%
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Decatur Educational Attainment by Sex (over 25)

Decatur Educational Attainment by Race

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Race Total High School Bachelors
Asian596577365
Hispanic942702245
Other Race20610650
White36,99233,6968,538
Native American12910327
Black9,5798,2261,412
2+ Races1,5691,272101
Islander1818

The highest rate of high school graduation is among islander people with a rate of 100.00%.

The highest rate of bachelors degrees is among asian people with a rate of 61.24%.

Decatur Educational Attainment by Race

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Name Average Male Female
Overall$35,142$43,105$28,593
Less Than 9th Grade$20,995$24,720$18,528
High School Graduate$30,547$39,977$25,411
Some College$33,313$42,931$26,738
Bachelors Degree$47,581$54,792$38,052
Graduate Degree$54,857$76,528$45,556

$35,142

Average Earnings

$43,105

Average Male

$28,593

Average Female

Decatur Earnings by Educational Attainment

Decatur Language by Age

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Decatur Language

96.28% of Decatur residents speak only English, while 3.72% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.94% of the population.

Decatur Language

Decatur Poverty by Race

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Name Total In Poverty Poverty Rate
Multiple3,7611,37736.61%
Native1736235.84%
Black15,2065,04933.20%
Hispanic1,72747527.50%
Islander531018.87%
White46,9626,34213.50%
Asian7397810.55%
Other57NaN%

19.39%

Overall Poverty Rate

17.49%

Male Poverty Rate

21.07%

Female Poverty Rate

Poverty in Decatur

The race most likely to be in poverty in Decatur is Multiple, with 36.61% below the poverty level.

The race least likely to be in poverty in Decatur is Other, with NaN% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.97%. Among those working part-time, it was 23.36%, and for those that did not work, the poverty rate was 25.70%.

Decatur Poverty

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Name Poverty
Less Than 9th Grade31.58%
High School17.25%
Some College15.73%
Bachelors or Greater3.84%

Decatur Poverty Rate by Education

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Rate Poverty
Male Employed5.46%
Male Unemployed43.23%
Female Employed12.28%
Female Unemployed45.38%

Decatur Poverty Rate by Employment Status and Sex

Decatur Income by Household Type

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Name Median Mean
Households$45,404$62,083
Families$62,699$78,037
Married Families$77,901$95,691
Non Families$32,863$41,875
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Income by Household Type

Decatur Marital Status

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Marriage Rates

40.5%

Overall Marriage Rate

44.0%

Male Marriage Rate

37.6%

Female Marriage Rate

Decatur Married by Age and Sex

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Decatur Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.

Decatur Marital Status by Race

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Decatur Marital Status

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4,498

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Second Gulf War559
First Gulf War660
Vietnam1,636
Korea421
World War II163

Decatur Veterans by War

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Age Group Veterans
18 to 34311
35 to 54927
55 to 64819
65 to 741,245
75+1,196

Decatur Veterans by Age

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Name Veterans % of Total
White3,4838.28%
Black8517.47%
Asian101.45%
Islander34.92%
2+ Races1517.19%
Hispanic726.03%

Decatur Veterans by Race

Decatur Veterans by Education

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7.22%

Veteran Poverty Rate

27.99%

Veteran Disability Rate

Decatur Veterans by Education

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57.5%

Labor Force Participation

52.1%

Employment Rate

9.3%

Unemployment Rate

Decatur Employment by Age

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Decatur Employment by Race

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Decatur Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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78.95%

Born in Decatur

97.51%

Native Born

2.49%

Foreign Born

1.07%

Non Citizen

1.42%

Naturalized

Place of Birth

97.51% of Decatur residents were born in the United States, with 78.95% having been born in Illinois. 1.07% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Decatur Place of Birth

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
18603,8390.00%
18707,1613,3226.43%
18809,5472,3862.92%
189016,8417,2945.84%
190020,7543,9132.11%
191031,14010,3864.14%
192043,81812,6783.47%
193057,51013,6922.76%
194059,3051,7950.31%
195066,2696,9641.12%
196078,00411,7351.64%
197090,39712,3931.49%
198093,9393,5420.39%
199083,885-10,054-1.13%
200081,860-2,025-0.24%
201076,122-5,738-0.72%
201175,562-560-0.74%
201275,002-560-0.74%
201374,442-560-0.75%
201473,882-560-0.75%
201573,322-560-0.76%
201672,762-560-0.76%
201772,202-560-0.77%
201871,642-560-0.78%
201971,082-560-0.78%
202070,522-560-0.79%
202169,962-560-0.79%
202269,402-560-0.80%

Decatur Population by Year