Clay County, Illinois Population 2024

12,833

Clay County, Illinois's estimated 2024 population is 12,833 with a growth rate of -0.83% in the past year according to the most recent United States census data. Clay County, Illinois is the 79th largest county in Illinois. The 2010 population was 13,822 and has seen a growth of -7.16% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
202912,298-107-0.86%
202812,405-107-0.86%
202712,512-107-0.85%
202612,619-107-0.84%
202512,726-107-0.83%
202412,833-107-0.83%
202312,940-107-0.82%
202213,047-107-0.81%
202113,154-117-0.88%
202013,271940.71%
201913,177-83-0.63%
201813,26010.01%
201713,259-50-0.38%
201613,309-86-0.64%
201513,395-46-0.34%
201413,441-109-0.8%
201313,550-160-1.17%
201213,710-11-0.08%
201113,721-101-0.73%
201013,822
199014,460-823-5.39%
198015,2835483.72%
197014,735-1,080-6.83%
196015,815-1,630-9.34%
195017,445-1,502-7.93%
194018,9472,79217.28%
193016,155-1,529-8.65%
192017,684-977-5.24%
191018,661-892-4.56%
190019,5532,78116.58%
189016,7725803.58%
188016,1923172%
187015,8756,53970.04%
18609,3365,047117.67%
18504,2891,06132.87%
18403,2282,473327.55%
1830755-11,543-93.86%
showing: 37 rows
2024 Growth Rate
-0.83% (-107)
County Seat
2010 Population
13,822
Area
468 mi²
Density
27 people/mi²
Growth Since 2010
-7.16% (-989)
Founded
1824

Clay County, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White12,64895.47%
Two or more races3942.97%
Native American730.55%
Black or African American610.46%
Asian420.32%
Other race300.23%
Native Hawaiian or Pacific Islander
showing: 7 rows

White

Two or more races

Native American

Black or African American

Asian

Other race

Native Hawaiian or Pacific Islander

Clay County, Illinois Population by Race

Clay County, Illinois Population Pyramid 2024

Clay County, Illinois Median Age

41.8

Total

41.8

Male

41.8

Female

Clay County, Illinois Adults

There are 10,226 adults, (2,727 of whom are seniors) in Clay County, Illinois.

Clay County, Illinois Age Dependency

76.7

Age Dependency Ratio

36.4

Old Age Dependency Ratio

40.3

Child Dependency Ratio

Clay County, Illinois Sex Ratio

Female6,59849.8%
Male6,65050.2%

Clay County, Illinois Population by Age

Clay County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5,4772.3676.723.3
Married2,4902.9989.610.4
Non Family2,1841.2564.935.1
Female4443.3853.446.6
Male3593.4688.311.7
showing: 5 rows

2.95

Average Family Size

2.36

Average Household Size

76.7%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Clay 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

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

Clay 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 asian people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 61.11%.

Clay County, Illinois Educational Attainment by Race

All

Male

Female

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$41,453

Average Earnings

$51,317

Average Male

$33,522

Average Female

Clay County, Illinois Earnings by Educational Attainment

Clay County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Clay County, Illinois Language

98.55% of Clay County, Illinois residents speak only English, while 1.45% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.03% of the population.

Clay County, Illinois Language

Clay County, Illinois Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White12,4071,98415.99%
Black513976.47%
Hispanic201575%
Multiple39471.78%
Other30413.33%
Asian3625.56%
Native7311.37%
showing: 7 rows

15.75%

Overall Poverty Rate

15.41%

Male Poverty Rate

16.09%

Female Poverty Rate

Poverty in Clay County, Illinois

The race most likely to be in poverty in Clay County, Illinois is Black, with 76.47% below the poverty level.

The race least likely to be in poverty in Clay County, Illinois is Native, with 1.37% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 4.37%. Among those working part-time, it was 16.21%, and for those that did not work, the poverty rate was 24.53%.

Clay County, Illinois Poverty

rate

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Rate
Poverty
Less Than 9th Grade27.45%
High School19.7%
Some College8.53%
Bachelors or Greater3.19%
showing: 4 rows

Clay County, Illinois Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed44.63%
Male Unemployed13.15%
Female Employed9.93%
Male Employed7.47%
showing: 4 rows

Clay County, Illinois Poverty Rate by Employment Status and Sex

Clay County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Clay County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

47.5%

Overall Marriage Rate

48.0%

Male Marriage Rate

47.0%

Female Marriage Rate

Clay County, Illinois Married by Age and Sex

male

female

Clay 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 45-54.

Clay County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Clay County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

804

Number of Veterans

738

Male Veterans

66

Female Veterans

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Clay County, Illinois Veterans by War

count

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Clay County, Illinois Veterans by Age

count

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Clay County, Illinois Veterans by Race

Clay County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

2.86%

Veteran Poverty Rate

38.67%

Veteran Disability Rate

Clay County, Illinois Veterans by Education

LaborForceParticipation

58%

Labor Force Participation

54.5%

Employment Rate

6%

Unemployment Rate

Clay County, Illinois Employment by Age

LaborForceParticipation

Clay County, Illinois Employment by Race

LaborForceParticipation

Clay 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

86.89%

Born in Clay County, Illinois

99.57%

Native Born

0.43%

Foreign Born

0.17%

Non Citizen

0.26%

Naturalized

Place of Birth

99.57% of Clay County, Illinois residents were born in the United States, with 86.89% having been born in Illinois. 0.17% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Clay County, Illinois Place of Birth

Sources