Mason County, Illinois Population 2021

Mason County, Illinois's estimated population is 13,011 with a growth rate of -1.32% in the past year according to the most recent United States census data. Mason County, Illinois is the 79th largest county in Illinois. The 2010 Population was 14,651 and has seen a growth of -11.19% since this time.

Note: 2020 and 2021 data is projected
Year Population Growth Growth Rate
202113,011-174-1.32%
202013,185-174-1.30%
201913,359-174-1.29%
201813,533-144-1.05%
201713,67720.01%
201613,675-188-1.36%
201513,863-240-1.70%
201414,103-41-0.29%
201314,144-178-1.24%
201214,322-149-1.03%
201114,471-180-1.23%
201014,651-1,618-9.95%
199016,269-3,223-16.53%
198019,4923,33120.61%
197016,1619686.37%
196015,193-133-0.87%
195015,326-32-0.21%
194015,3582431.61%
193015,115-1,519-9.13%
192016,634-743-4.28%
191017,377-114-0.65%
190017,4911,4248.86%
189016,067-175-1.08%
188016,242580.36%
187016,1845,25348.06%
186010,9315,01084.61%
18505,9210.00%
2021 Growth Rate
-1.32%
County Website
Founded
1841
County Seat
2010 Population
14,651
Growth Since 2010
-11.19%
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Mason County, Illinois Population Growth

Population by Race

Race Population Percentage
White13,21497.01%
Two or More Races2121.56%
Black or African American1030.76%
Some Other Race460.34%
Asian240.18%
American Indian and Alaska Native220.16%
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Mason County, Illinois Population by Race

Mason County, Illinois Population Pyramid $2021

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Mason County, Illinois Median Age

45.2


Total

44.7


Male

45.7


Female

Mason County, Illinois Adults

There are 10,804 adults, (3,005 of whom are seniors) in Mason County, Illinois.

Mason County, Illinois Age Dependency

74.7

Age Dependency Ratio

38.5

Old Age Dependency Ratio

36.1

Child Dependency Ratio

Mason County, Illinois Sex Ratio

Female

6,913

50.75%

Male

6,708

49.25%

Mason County, Illinois Population by Age

Mason County, Illinois Renter vs Owner Occupied by Household Type

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Mason County, Illinois Household Types

Type Owner Renter
Married89%11%
Male84%16%
All77.8%22.2%
Non Family71.1%28.9%
Female45.2%54.8%

77.8%

Rate of Home Ownership

Mason County, Illinois Households and Families

Type Count Average Size Owned
All5,9772.2477.8
Married2,9422.7589
Non Family2,1841.2571.1
Female5953.0745.2
Male2562.8884

2.73

Average Family Size

2.24

Average Household Size

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Mason County, Illinois Households by Type

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Education Attained Count Percentage
Less Than 9th Grade4014.07%
9th to 12th Grade6666.75%
High School Graduate4,22042.79%
Some College1,93719.64%
Associates Degree1,05710.72%
Bachelors Degree1,10411.19%
Graduate Degree4784.85%
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Mason County, Illinois Educational Attainment by Sex (over 25)

Mason County, Illinois Educational Attainment by Race

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Race Total High School Bachelors
White9,5278,4731,546
Hispanic111100
2+ Races10310332
Black7876
Other Race4646
Asian2424
Native American22224

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

The highest rate of bachelors degrees is among 2+ races people with a rate of 31.07%.

Mason County, Illinois Educational Attainment by Race

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Name Average Male Female
Overall$31,861$41,400$25,786
Less Than 9th Grade$18,214$25,966$11,518
High School Graduate$27,301$39,614$19,470
Some College$31,795$42,708$26,998
Bachelors Degree$52,083$64,063$41,950
Graduate Degree$54,821$77,750$43,594

$31,861

Average Earnings

$41,400

Average Male

$25,786

Average Female

Mason County, Illinois Earnings by Educational Attainment

Mason County, Illinois Language by Age

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Mason County, Illinois Language

98.34% of Mason County, Illinois residents speak only English, while 1.66% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.94% of the population.

Mason County, Illinois Language

Mason County, Illinois Poverty by Race

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Name Total In Poverty Poverty Rate
White12,9311,75713.59%
Hispanic1448357.64%
Multiple1985226.26%
Other464597.83%
Black703752.86%
Native221150.00%

14.31%

Overall Poverty Rate

13.30%

Male Poverty Rate

15.29%

Female Poverty Rate

Poverty in Mason County, Illinois

The race most likely to be in poverty in Mason County, Illinois is Other, with 97.83% below the poverty level.

The race least likely to be in poverty in Mason County, Illinois is White, with 13.59% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 3.81%. Among those working part-time, it was 19.55%, and for those that did not work, the poverty rate was 16.50%.

Mason County, Illinois Poverty

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Name Poverty
Less Than 9th Grade26.08%
High School11.51%
Some College7.82%
Bachelors or Greater5.93%

Mason County, Illinois Poverty Rate by Education

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Rate Poverty
Female Unemployed47.96%
Male Unemployed40.78%
Female Employed10.90%
Male Employed6.50%

Mason County, Illinois Poverty Rate by Employment Status and Sex

Mason County, Illinois Income by Household Type

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Name Median Mean
Households$48,417$65,149
Families$61,639$75,854
Married Families$69,712-
Non Families$32,684$43,040
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Income by Household Type

Mason County, Illinois Marital Status

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Marriage Rates

53.4%

Overall Marriage Rate

54.0%

Male Marriage Rate

52.9%

Female Marriage Rate

Mason County, Illinois Married by Age and Sex

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Mason County, Illinois Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 55-64.

Mason County, Illinois Marital Status by Race

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Mason County, Illinois Marital Status

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1,123

Number of Veterans

1,079

Male Veterans

44

Female Veterans

War Veterans
Vietnam444
First Gulf War154
Korea143
Second Gulf War80
World War II49

Mason County, Illinois Veterans by War

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Age Group Veterans
65 to 74380
75+298
35 to 54272
55 to 64147
18 to 3426

Mason County, Illinois Veterans by Age

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Name Veterans % of Total
White1,09710.44%
Native American1568.18%
Hispanic86.40%
Black67.69%
2+ Races54.24%

Mason County, Illinois Veterans by Race

Mason County, Illinois Veterans by Education

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10.24%

Veteran Poverty Rate

34.27%

Veteran Disability Rate

Mason County, Illinois Veterans by Education

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61%

Labor Force Participation

56.9%

Employment Rate

6.6%

Unemployment Rate

Mason County, Illinois Employment by Age

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Mason County, Illinois Employment by Race

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Mason County, Illinois 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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86.52%

Born in Mason County, Illinois

99.17%

Native Born

0.83%

Foreign Born

0.10%

Non Citizen

0.73%

Naturalized

Place of Birth

99.17% of Mason County, Illinois residents were born in the United States, with 86.52% having been born in Illinois. 0.10% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Mason County, Illinois Place of Birth

  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

Sources