Marion, Illinois Population 2021

17,356
Loading...

Marion is a city located in Williamson County Illinois. It is also the county seat of Williamson County. With a 2020 population of 17,356, it is the 147th largest city in Illinois and the 2089th largest city in the United States . Marion is currently declining at a rate of -0.47% annually but its population has increased by 0.95% since the most recent census, which recorded a population of 17,193 in 2010. Marion reached it's highest population of 17,757 in 2013. Spanning over 17 miles, Marion has a population density of 1,051 people per square mile.

The average household income in Marion is $62,472 with a poverty rate of 18.53%. The median rental costs in recent years comes to $740 per month, and the median house value is $115,500. The median age in Marion is 39.3 years, 36.2 years for males, and 41.9 years for females.

Marion Demographics

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

  • White: 85.29%
  • Black or African American: 8.67%
  • Two or more races: 4.36%
  • Asian: 1.13%
  • Other race: 0.40%
  • Native Hawaiian or Pacific Islander: 0.12%
  • Native American: 0.03%
The current population of Marion, Illinois is 17,356 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 17,602.The last official US Census in 2010 recorded the population at 17,193.

Marion, Illinois Population 2021

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

Year Population Growth Growth Rate
2021133,904-930-0.69%
2020134,834-930-0.69%
2019135,764-930-0.69%
2018136,694-658-0.48%
2017137,352-1,282-0.93%
2016138,634-785-0.57%
2015139,419-239-0.17%
2014139,658-419-0.30%
2013140,0771,3790.98%
2012138,698-1,258-0.91%
2011139,9565470.39%
2010139,4090.00%

Marion Metro Area Population by Year

Population by Race

Race Population Percentage
White15,00785.29%
Black or African American1,5258.67%
Two or More Races7674.36%
Asian1991.13%
Some Other Race700.40%
Native Hawaiian and Other Pacific Islander210.12%
American Indian and Alaska Native60.03%
Loading...

Marion Population by Race

Marion Population Pyramid $2021

Loading...

Marion Median Age

39.3


Total

36.2


Male

41.9


Female

Marion Adults

There are 13,583 adults, (3,687 of whom are seniors) in Marion.

Marion Age Dependency

77.8

Age Dependency Ratio

37.3

Old Age Dependency Ratio

40.5

Child Dependency Ratio

Marion Sex Ratio

Female

9,059

51.49%

Male

8,536

48.51%

Marion Population by Age

Marion Renter vs Owner Occupied by Household Type

Loading...

Marion Household Types

Type Owner Renter
Married82.3%17.7%
All54.8%45.2%
Male44.5%55.5%
Non Family37.9%62.1%
Female32.5%67.5%

54.8%

Rate of Home Ownership

Marion Households and Families

Type Count Average Size Owned
All7,4792.2954.8
Non Family3,2571.2537.9
Married2,9112.9382.3
Female9743.532.5
Male3373.3144.5

2.98

Average Family Size

2.29

Average Household Size

Loading...

Marion Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade2872.31%
9th to 12th Grade5924.77%
High School Graduate3,93431.67%
Some College3,61629.11%
Associates Degree1,1779.47%
Bachelors Degree1,50912.15%
Graduate Degree1,30810.53%
Loading...

Marion Educational Attainment by Sex (over 25)

Marion Educational Attainment by Race

Loading...
Race Total High School Bachelors
White10,89310,0962,445
Black1,0741,022255
2+ Races19418452
Asian17817865
Hispanic16815484
Islander2121
Other Race88
Native American6

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

The highest rate of bachelors degrees is among hispanic people with a rate of 50.00%.

Marion Educational Attainment by Race

Loading...
Name Average Male Female
Overall$33,738$42,586$28,198
Less Than 9th Grade$16,719$37,083$11,399
High School Graduate$24,902$30,368$22,016
Some College$32,254$42,113$24,598
Bachelors Degree$46,098$61,250$33,705
Graduate Degree$64,079$104,018$53,077

$33,738

Average Earnings

$42,586

Average Male

$28,198

Average Female

Marion Earnings by Educational Attainment

Marion Language by Age

Loading...

Marion Language

97.12% of Marion residents speak only English, while 2.88% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.58% of the population.

Marion Language

Marion Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White14,3302,26515.81%
Black1,41835725.18%
Multiple76135146.12%
Hispanic39915939.85%
Asian1992613.07%
Islander2121100.00%

18.53%

Overall Poverty Rate

16.67%

Male Poverty Rate

20.26%

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 Asian, with 13.07% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.02%. Among those working part-time, it was 24.79%, and for those that did not work, the poverty rate was 22.52%.

Marion Poverty

Loading...
Name Poverty
Less Than 9th Grade40.05%
High School18.15%
Some College13.72%
Bachelors or Greater3.68%

Marion Poverty Rate by Education

Loading...
Rate Poverty
Male Unemployed61.79%
Female Unemployed22.70%
Female Employed13.79%
Male Employed4.66%

Marion Poverty Rate by Employment Status and Sex

Marion Income by Household Type

Loading...
Name Median Mean
Households$43,502$62,472
Families$61,600$81,455
Married Families$81,088-
Non Families$26,037$36,293
Loading...

Income by Household Type

Marion Marital Status

Loading...

Marriage Rates

44.2%

Overall Marriage Rate

46.6%

Male Marriage Rate

42.0%

Female Marriage Rate

Marion Married by Age and Sex

Loading...

Marion Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 35-44.

Marion Marital Status by Race

Loading...

Marion Marital Status

Loading...

1,513

Number of Veterans

1,422

Male Veterans

91

Female Veterans

War Veterans
Vietnam704
First Gulf War403
Second Gulf War230
Korea82
World War II31

Marion Veterans by War

Loading...
Age Group Veterans
65 to 74558
35 to 54411
75+309
55 to 64195
18 to 3440

Marion Veterans by Age

Loading...
Name Veterans % of Total
White1,37211.55%
Black1149.46%
2+ Races2710.98%
Hispanic114.93%

Marion Veterans by Race

Marion Veterans by Education

Loading...

5.63%

Veteran Poverty Rate

35.30%

Veteran Disability Rate

Marion Veterans by Education

Loading...

53.9%

Labor Force Participation

50.7%

Employment Rate

5.5%

Unemployment Rate

Marion Employment by Age

Loading...

Marion Employment by Race

Loading...

Marion Employment by Education

Origin of Non-Citizens

Loading...

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

Origin of Naturalized Citizens

Loading...

76.16%

Born in Marion

98.24%

Native Born

1.76%

Foreign Born

1.00%

Non Citizen

0.76%

Naturalized

Place of Birth

98.24% of Marion residents were born in the United States, with 76.16% having been born in Illinois. 1.00% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Marion Place of Birth

Year Population Growth Annual Growth Rate
202117,356-82-0.47%
202017,438-82-0.47%
201917,520-82-0.47%
201817,602140.08%
201717,588-69-0.39%
201617,657440.25%
201517,613-134-0.76%
201417,747-10-0.06%
201317,7573982.29%
201217,359140.08%
201117,345970.56%
201017,2481,2130.73%
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%

Marion Population by Year