Marion, Illinois Population 2020

17,502
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Marion is a city located in Illinois. With a 2020 population of 17,502, it is the 145th largest city in Illinois and the 2061st largest city in the United States. Marion is currently declining at a rate of -0.34% annually but its population has increased by 1.80% since the most recent census, which recorded a population of 17,193 in 2010. Marion reached it's highest population of 17,746 in 2013. Spanning over 17 miles, Marion has a population density of 1,059 people per square mile.

The average household income in Marion is $60,602 with a poverty rate of 19.70%. The median rental costs in recent years comes to $713 per month, and the median house value is $117,800. The median age in Marion is 39.2 years, 36.5 years for males, and 42 years for females. For every 100 females there are 92.8 males.

Marion Demographics

According to the most recent ACS, the racial composition of Marion was:

  • White: 87.44%
  • Black or African American: 7.13%
  • Two or more races: 4.20%
  • Asian: 0.73%
  • Other race: 0.43%
  • Native Hawaiian or Pacific Islander: 0.04%
  • Native American: 0.03%
The current population of Marion, Illinois is 17,502, based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 17,620.The last official US Census in 2010 recorded the population at 17,193.

Marion, Illinois Population 2020

2019 and 2020 population is estimated by projecting the raw 2018 numbers.

Year Total Population Growth Annual Growth Rate
2020123,295-590-0.48%
2019123,885-590-0.48%
2018124,475-590-0.47%
2017125,065-1,191-0.95%
2016126,256-429-0.34%
2015126,685-84-0.07%
2014126,769-435-0.34%
2013127,2041,3671.07%
2012125,837-1,254-1.00%
2011127,0912830.22%
2010126,8080.00%

Population by Race

Race Population Percentage
White15,43087.44%
Black or African American1,2587.13%
Two or More Races7414.20%
Asian1280.73%
Some Other Race760.43%
Native Hawaiian and Other Pacific Islander70.04%
American Indian and Alaska Native60.03%
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Marion Population Pyramid 2020

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Marion Median Age

39.2


Total

36.5


Male

42


Female

Marion Adults

There are 13,551 adults, (3,636 of whom are seniors) in Marion.

Marion Age Dependency

78

Age Dependency Ratio

36.7

Old Age Dependency Ratio

41.3

Child Dependency Ratio

Marion Sex Ratio

Female

9,152

51.86%

Male

8,494

48.14%

Marion Households and Families

Marion Renter vs Owner Occupied by Household Type

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Marion Household Types

Type Owner Renter
Married82.6%17.4%
All56%44%
Non Family39.9%60.1%
Male36.3%63.7%
Female31.5%68.5%

56.0%

Rate of Home Ownership

Type Count Average Size Owned
All7,4682.356
Non Family3,2041.2239.9
Married3,0402.9282.6
Female9873.7231.5
Male2373.1136.3

3.03

Average Family Size

2.3

Average Household Size

4.1%

Unmarried (Opposite Sex)

0%

Unmarried (Same Sex)

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Marion Education

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Education Attained Count Percentage
Less Than 9th Grade3072.49%
9th to 12th Grade7796.31%
High School Graduate3,63929.49%
Some College3,57128.94%
Associates Degree1,2129.82%
Bachelors Degree1,53812.46%
Graduate Degree1,29510.49%
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Marion Educational Attainment by Race

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Name Total High School Bachelors
White11,01810,0822,457
Black909827205
Hispanic19114792
Multiple Races18818062
Asian988880
Other Race283
Islander77
Native American6

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 81.63%.

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Name Average Male Female
Overall$32,127$42,318$26,556
Less Than High School$11,654$$9,519
High School Grad$25,589$30,625$21,947
Some College$30,984$40,377$23,688
Bachelors Degree$46,279$56,250$33,362
Graduate Degree$59,444$80,227$52,692

$32,127

Average Earnings

$42,318

Average Male

$26,556

Average Female

Marion Language

Marion Language by Age

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Marion Language

97.63% of Marion residents speak only English, while 2.37% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.51% of the population.

Marion Poverty

Marion Poverty by Race

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Name Total In Poverty Poverty Rate
White14,7692,42216.40%
Black1,13739634.83%
Multiple73532744.49%
Hispanic41619346.39%
Other764356.58%
Asian1282821.88%
Islander77100.00%

19.70%

Overall Poverty Rate

19.56%

Male Poverty Rate

19.82%

Female Poverty Rate

Poverty in Marion

The race most likely to be in poverty in Marion is Islander, with 100.00% below the poverty level.

The race least likely to be in poverty in Marion is White, with 16.40% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.33%. Among those working part-time, it was 29.43%, and for those that did not work, the poverty rate was 20.77%.

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Name Poverty
Less Than High School36.05%
High School18.53%
Some College14.47%
Bachelors or Greater4.68%
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Name Poverty
Male Unemployed68.68%
Female Unemployed16.28%
Female Employed15.57%
Male Employed6.73%

Marion Income

Marion Income by Household Type

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Name Median Mean
Households$42,789$60,602
Families$64,497$78,955
Married Families$77,963-
Non Families$24,674$35,165
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Marion Marital Status

Marion Marital Status

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Marriage Rates

45.8%

Overall Marriage Rate

48.5%

Male Marriage Rate

43.3%

Female Marriage Rate

Marion Married by Age and Sex

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Marion 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 35-44.

Marion Marital Status by Race

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Marion Veterans

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1,330

Number of Veterans

1,276

Male Veterans

54

Female Veterans

War Veterans
Vietnam573
First Gulf War306
Second Gulf War165
Korea118
World War II62
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Age Group Veterans
65 to 74448
75+336
35 to 54329
55 to 64178
18 to 3439
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Name Veterans % of Total
White1,22010.06%
Black828.22%
2 or More2812.56%
Hispanic125.13%

Marion Veterans by Education

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6.10%

Veteran Poverty Rate

31.04%

Veteran Disability Rate

Marion Employment Status

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54.9%

Labor Force Participation

51.7%

Employment Rate

5.2%

Unemployment Rate

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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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78.32%

Born in Illinois

98.83%

Native Born

1.17%

Foreign Born

0.45%

Non Citizen

0.72%

Naturalized

Place of Birth

98.83% of Marion residents were born in the United States, with 78.32% having been born in Illinois. 0.45% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Year Population Growth Annual Growth Rate
202017,502-59-0.34%
201917,561-59-0.33%
201817,620220.13%
201717,598-59-0.33%
201617,657500.28%
201517,607-129-0.73%
201417,736-10-0.06%
201317,7464002.31%
201217,346170.10%
201117,329960.56%
201017,2331,1980.72%
200016,0351,4900.98%
199014,5455140.36%
198014,0312,3071.81%
197011,7244500.39%
196011,2748150.75%
195010,4591,2081.23%
19409,2512180.24%
19309,033-549-0.59%
19209,5822,4893.05%
19107,0934,58310.95%
19002,5100.00%