Mason County, Illinois Population 2024

12,347

Mason County, Illinois's estimated 2024 population is 12,347 with a growth rate of -1.41% in the past year according to the most recent United States census data. Mason County, Illinois is the 82nd largest county in Illinois. The 2010 population was 14,651 and has seen a growth of -15.73% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202911,467-176-1.51%
202811,643-176-1.49%
202711,819-176-1.47%
202611,995-176-1.45%
202512,171-176-1.43%
202412,347-176-1.41%
202312,523-176-1.39%
202212,699-131-1.02%
202112,830-228-1.75%
202013,058-329-2.46%
201913,387-133-0.98%
201813,520-152-1.11%
201713,672-5-0.04%
201613,677-185-1.33%
201513,862-240-1.7%
201414,102-42-0.3%
201314,144-178-1.24%
201214,322-148-1.02%
201114,470-181-1.24%
201014,65100%
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%
18505,921-5,546-48.36%
showing: 35 rows
2024 Growth Rate
-1.41% (-176)
County Website
Mason County
County Seat
2020 Population
13,058
Area
539 mi²
Density
23 people/mi²
Growth Since 2020
-5.44% (-711)
Founded
1841

Mason County, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White12,60996.44%
Two or more races3012.3%
Black or African American650.5%
Other race510.39%
Asian400.31%
Native American80.06%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Black or African American

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Mason County, Illinois Population by Race

Mason County, Illinois Population Pyramid 2024

Mason County, Illinois Median Age

45.4

Total

44.9

Male

46.3

Female

Mason County, Illinois Adults

There are 10,378 adults, (2,989 of whom are seniors) in Mason County, Illinois.

Mason County, Illinois Age Dependency

76.9

Age Dependency Ratio

40.5

Old Age Dependency Ratio

36.5

Child Dependency Ratio

Mason County, Illinois Sex Ratio

Female6,64150.8%
Male6,43349.2%

Mason County, Illinois Population by Age

Mason County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5,7882.2280.419.6
Married2,6812.8791.98.1
Non Family2,3311.273.726.3
Female5083.0457.742.3
Male2683.0367.932.1

2.8

Average Family Size

2.22

Average Household Size

80.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Mason County, Illinois Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Mason County, Illinois Educational Attainment by Sex (over 25)

Mason County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among white people with a rate of 17.83%.

Mason County, Illinois Educational Attainment by Race

All

Male

Female

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$38,896

Average Earnings

$49,870

Average Male

$32,173

Average Female

Mason County, Illinois Earnings by Educational Attainment

Mason County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Mason County, Illinois Language

97.94% of Mason County, Illinois residents speak only English, while 2.06% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.2% of the population.

Mason County, Illinois Language

Mason County, Illinois Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White12,3911,56212.61%
Multiple29612642.57%
Hispanic1769453.41%
Other514588.24%
Black10990%

13.73%

Overall Poverty Rate

12.64%

Male Poverty Rate

14.79%

Female Poverty Rate

Poverty in Mason County, Illinois

The race most likely to be in poverty in Mason County, Illinois is Black, with 90% below the poverty level.

The race least likely to be in poverty in Mason County, Illinois is White, with 12.61% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 2.11%. Among those working part-time, it was 20.12%, and for those that did not work, the poverty rate was 18.93%.

Mason County, Illinois Poverty

rate

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Rate
Poverty
Less Than 9th Grade34.88%
High School12.08%
Some College8.26%
Bachelors or Greater6.6%

Mason County, Illinois Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed50%
Male Unemployed43.37%
Female Employed6.61%
Male Employed5.9%

Mason County, Illinois Poverty Rate by Employment Status and Sex

Mason County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Mason County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

50.6%

Overall Marriage Rate

50.5%

Male Marriage Rate

50.7%

Female Marriage Rate

Mason County, Illinois Married by Age and Sex

male

female

Mason County, Illinois 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 55-64.

Mason County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Mason County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

854

Number of Veterans

813

Male Veterans

41

Female Veterans

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Mason County, Illinois Veterans by War

count

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Mason County, Illinois Veterans by Age

count

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Mason County, Illinois Veterans by Race

Mason County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.69%

Veteran Poverty Rate

39.1%

Veteran Disability Rate

Mason County, Illinois Veterans by Education

LaborForceParticipation

57.2%

Labor Force Participation

54.2%

Employment Rate

5.2%

Unemployment Rate

Mason County, Illinois Employment by Age

LaborForceParticipation

Mason County, Illinois Employment by Race

LaborForceParticipation

Mason County, Illinois Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

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

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

87.57%

Born in Mason County, Illinois

99.36%

Native Born

0.64%

Foreign Born

0.12%

Non Citizen

0.52%

Naturalized

Place of Birth

99.36% of Mason County, Illinois residents were born in the United States, with 87.57% having been born in Illinois. 0.12% 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

Sources