Marion County, Illinois Population 2020

Marion County, Illinois's estimated population is 37,821 with a growth rate of -0.61% in the past year according to the most recent United States census data. Marion County, Illinois is the 38th largest county in Illinois.

Year Population Growth Growth Rate
201837,620-201-0.53%
201737,821-234-0.61%
201638,055-311-0.81%
201538,366-192-0.50%
201438,558-114-0.29%
201338,672-337-0.86%
201239,009-131-0.33%
201139,140-279-0.71%
201039,419-2,142-5.15%
199041,561-1,962-4.51%
198043,5234,53711.64%
197038,986-363-0.92%
196039,349-2,351-5.64%
195041,700-6,289-13.11%
194047,98912,35434.67%
193035,635-1,862-4.97%
192037,4972,4036.85%
191035,0944,64815.27%
190030,4466,10525.08%
189024,3416552.77%
188023,6863,06414.86%
187020,6227,88361.88%
186012,7396,01989.57%
18506,7201,97841.71%
18404,7422,617123.15%
18302,1250.00%

How Many People Live in Marion County, Illinois?

37,821

Population by Race

Race Population Percentage
White35,26692.60%
Black or African American1,3303.49%
Two or More Races8712.29%
Some Other Race2670.70%
Asian2640.69%
American Indian and Alaska Native860.23%

Marion County, Illinois Population Pyramid 2020

Marion County, Illinois Median Age

42.1


Total

40.7


Male

43.5


Female

Marion County, Illinois Adults

There are 29,348 adults, (7,261 of whom are seniors) in Marion County, Illinois.

Marion County, Illinois Age Dependency

72.4

Age Dependency Ratio

32.9

Old Age Dependency Ratio

39.6

Child Dependency Ratio

Marion County, Illinois Sex Ratio

Female

19,358

50.83%

Male

18,726

49.17%

Marion County, Illinois Households and Families

Marion County, Illinois Renter vs Owner Occupied by Household Type

Marion County, Illinois Household Types

Type Owner Renter
Married90.1%9.9%
All73.4%26.6%
Non Family64.1%35.9%
Male56.4%43.6%
Female47.4%52.6%

73.4%

Rate of Home Ownership

Type Count Average Size Owned
All15,9132.3573.4
Married7,2432.9290.1
Non Family5,7431.264.1
Female2,0673.1247.4
Male8603.3156.4

2.88

Average Family Size

2.35

Average Household Size

8%

Unmarried (Opposite Sex)

0.1%

Unmarried (Same Sex)

Marion County, Illinois Education

Education Attained Count Percentage
Less Than 9th Grade1,1244.26%
9th to 12th Grade1,8326.95%
High School Graduate9,28135.19%
Some College6,96926.42%
Associates Degree3,21912.20%
Bachelors Degree2,5799.78%
Graduate Degree1,3735.21%

Marion County, Illinois Educational Attainment by Race

Name Total High School Bachelors
White24,60921,8753,605
Black86968189
Hispanic38838220
Other Race25525459
Multiple Races21120032
Asian209209139
Native American574010

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 asian people with a rate of 66.51%.

Name Average Male Female
Overall$31,754$38,719$25,705
Less Than High School$17,500$20,294$14,479
High School Grad$27,637$33,991$22,120
Some College$31,889$41,806$25,878
Bachelors Degree$42,981$48,450$38,482
Graduate Degree$51,798$58,426$46,458

$31,754

Average Earnings

$38,719

Average Male

$25,705

Average Female

Marion County, Illinois Language

Marion County, Illinois Language by Age

Marion County, Illinois Language

98.05% of Marion County, Illinois residents speak only English, while 1.95% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.89% of the population.

Marion County, Illinois Poverty

Marion County, Illinois Poverty by Race

Name Total In Poverty Poverty Rate
White33,9405,42115.97%
Black1,26844835.33%
Multiple81835243.03%
Hispanic64524537.98%
Asian25711845.91%
Other2677628.46%
Native863338.37%

17.91%

Overall Poverty Rate

15.59%

Male Poverty Rate

20.15%

Female Poverty Rate

Poverty in Marion County, Illinois

The race most likely to be in poverty in Marion County, Illinois is Asian, with 45.91% below the poverty level.

The race least likely to be in poverty in Marion County, Illinois is White, with 15.97% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.82%. Among those working part-time, it was 21.83%, and for those that did not work, the poverty rate was 20.99%.

Name Poverty
Less Than High School30.21%
High School13.00%
Some College10.78%
Bachelors or Greater6.34%
Name Poverty
Female Unemployed52.13%
Male Unemployed40.32%
Female Employed12.32%
Male Employed5.97%

Marion County, Illinois Income

Marion County, Illinois Income by Household Type

Name Median Mean
Households$46,102$58,895
Families$58,658$68,880
Married Families$70,504$81,598
Non Families$27,918$37,604

Marion County, Illinois Marital Status

Marion County, Illinois Marital Status

Marriage Rates

49.1%

Overall Marriage Rate

51.2%

Male Marriage Rate

47.1%

Female Marriage Rate

Marion County, Illinois Married by Age and Sex

Marion County, Illinois 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.

Marion County, Illinois Marital Status by Race

Marion County, Illinois Veterans

2,718

Number of Veterans

2,569

Male Veterans

149

Female Veterans

War Veterans
Vietnam1,124
First Gulf War355
Second Gulf War274
Korea266
World War II135

Marion County, Illinois Veterans by Race

Name Veterans % of Total
White2,5619.34%
Black999.40%
Hispanic5010.94%
2 or More268.70%
Indian1822.78%
Other145.49%

Marion County, Illinois Veterans by Education

7.14%

Veteran Poverty Rate

33.28%

Veteran Disability Rate

Marion County, Illinois Employment Status

61.3%

Labor Force Participation

55.4%

Employment Rate

9.5%

Unemployment Rate

Marion County, Illinois Place of Birth

Origin of Non Citizens

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

Origin of Naturalized Citizens

83.06%

Born in Illinois

98.66%

Native Born

1.34%

Foreign Born

0.74%

Non Citizen

Place of Birth

98.66% of Marion County, Illinois residents were born in the United States, with 83.06% having been born in Illinois. 0.74% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Population of Cities in Marion County, Illinois

City 2010 Census 2016 Estimated Growth Growth Rate
Centralia 1303412572-462-3.54%
Salem74807241-239-3.20%
Sandoval12741220-54-4.24%
Wamac 11851132-53-4.47%
Central City11721120-52-4.44%
Odin10761033-43-4.00%
Kinmundy796769-27-3.39%
Patoka584565-19-3.25%
Farina 518505-13-2.51%
Iuka489467-22-4.50%
Junction City482460-22-4.56%
Alma320313-7-2.19%
Kell219214-5-2.28%
Vernon129126-3-2.33%
Walnut Hill108106-2-1.85%
  1. US Census City/Town Population estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. Population of States and Counties of the United States: 1790 - 1990