Jersey County, Illinois Population 2024

20,991

Jersey County, Illinois's estimated 2024 population is 20,991 with a growth rate of -0.47% in the past year according to the most recent United States census data. Jersey County, Illinois is the 55th largest county in Illinois. The 2010 population was 22,997 and has seen a growth of -8.72% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202920,491-100-0.49%
202820,591-100-0.48%
202720,691-100-0.48%
202620,791-100-0.48%
202520,891-100-0.48%
202420,991-100-0.47%
202321,091-100-0.47%
202221,191-158-0.74%
202121,349-145-0.67%
202021,494-173-0.8%
201921,667-71-0.33%
201821,738-154-0.7%
201721,892-73-0.33%
201621,965-303-1.36%
201522,268-232-1.03%
201422,500-110-0.49%
201322,610-107-0.47%
201222,717-168-0.73%
201122,885-112-0.49%
201022,99700%
199020,53910%
198020,5382,04611.06%
197018,4921,4698.63%
196017,0231,75911.52%
195015,2641,62811.94%
194013,6361,0808.6%
193012,556-126-0.99%
192012,682-1,272-9.12%
191013,954-658-4.5%
190014,612-198-1.34%
189014,810-732-4.71%
188015,5424883.24%
187015,0543,00324.92%
186012,0514,69763.87%
18507,3542,81962.16%
18404,535-15,956-77.87%
2024 Growth Rate
-0.47% (-100)
County Website
Jersey County
County Seat
Jerseyville
2020 Population
21,494
Area
370 mi²
Density
57 people/mi²
Growth Since 2020
-2.34% (-503)
Founded
February 28, 1839

Population by Race

Race
Population
Percentage (of total)
White20,34195.34%
Two or more races6983.27%
Black or African American1240.58%
Asian1070.5%
Other race360.17%
Native Hawaiian or Pacific Islander240.11%
Native American60.03%

White

Two or more races

Black or African American

Asian

Other race

Native Hawaiian or Pacific Islander

Native American

Jersey County, Illinois Population by Race

Jersey County, Illinois Population Pyramid 2024

Jersey County, Illinois Median Age

43.2

Total

42.5

Male

44.2

Female

Jersey County, Illinois Adults

There are 17,080 adults, (4,289 of whom are seniors) in Jersey County, Illinois.

Jersey County, Illinois Age Dependency

66.8

Age Dependency Ratio

33.5

Old Age Dependency Ratio

33.3

Child Dependency Ratio

Jersey County, Illinois Sex Ratio

Female10,94151.28%
Male10,39548.72%

Jersey County, Illinois Population by Age

Jersey County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All7,9842.5577.922.1
Married4,0753.1688.111.9
Non Family2,6651.1966.133.9
Female7833.255248
Male4613.861000

3.14

Average Family Size

2.55

Average Household Size

77.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Jersey County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade6564.38%
Associates Degree1,91412.78%
Bachelors Degree2,02313.51%
Graduate Degree1,0487%
High School Graduate5,60237.41%
Less Than 9th Grade2861.91%
Some College3,44623.01%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Jersey County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White14,47713,5502,960
2+ Races36135575
Hispanic17516649
Black454024
Asian38383
Other Race15120
Islander14140
Native American430

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

The highest rate of bachelors degrees is among black people with a rate of 53.33%.

Jersey County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$65,293$75,000$49,365
Graduate Degree$64,716$72,750$61,417
High School Graduate$41,496$48,424$31,063
Less Than 9th Grade$39,968$37,981$58,571
Overall$53,002$61,804$40,755
Some College$56,405$70,193$38,780

$53,002

Average Earnings

$61,804

Average Male

$40,755

Average Female

Jersey County, Illinois Earnings by Educational Attainment

Jersey County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Jersey County, Illinois Language

98.23% of Jersey County, Illinois residents speak only English, while 1.77% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 0.87% of the population.

Jersey County, Illinois Language

Jersey County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White19,5101,9499.99%
Multiple678598.7%
Hispanic2705821.48%
Black321959.38%
Native4125%

9.97%

Overall Poverty Rate

8.65%

Male Poverty Rate

11.22%

Female Poverty Rate

Poverty in Jersey County, Illinois

The race most likely to be in poverty in Jersey County, Illinois is Black, with 59.38% below the poverty level.

The race least likely to be in poverty in Jersey County, Illinois is Multiple, with 8.7% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.85%. Among those working part-time, it was 9.3%, and for those that did not work, the poverty rate was 18.65%.

Jersey County, Illinois Poverty

rate

Rate
Poverty
High School12.68%
Less Than 9th Grade10.41%
Some College9.53%
Bachelors or Greater2.81%

Jersey County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Male Unemployed23.08%
Female Unemployed8.46%
Female Employed4.35%
Male Employed2.67%

Jersey County, Illinois Poverty Rate by Employment Status and Sex

Jersey County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$97,557$120,085
Households$79,104$97,570
Married Families$112,420$-999,999,999
Non Families$34,182$47,890

mean

median

Income by Household Type

Jersey County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

46.7%

Overall Marriage Rate

48.3%

Male Marriage Rate

45.1%

Female Marriage Rate

Jersey County, Illinois Married by Age and Sex

male

female

Jersey 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 55-64.

Jersey County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Jersey County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,543

Number of Veterans

1,421

Male Veterans

122

Female Veterans

War
Veterans
Vietnam494
First Gulf War353
Second Gulf War280
Korea78
World War II25

Jersey County, Illinois Veterans by War

count

Age Group
Veterans
65 to 74453
35 to 54427
75+378
55 to 64147
18 to 34138

Jersey County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White1,4969.16%
2+ Races429.07%
Black54.46%

Jersey County, Illinois Veterans by Race

Jersey County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.86%

Veteran Poverty Rate

26.62%

Veteran Disability Rate

Jersey County, Illinois Veterans by Education

LaborForceParticipation

59.4%

Labor Force Participation

56.8%

Employment Rate

4.4%

Unemployment Rate

Jersey County, Illinois Employment by Age

LaborForceParticipation

Jersey County, Illinois Employment by Race

LaborForceParticipation

Jersey 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

77.37%

Born in Jersey County, Illinois

99%

Native Born

1%

Foreign Born

0.8%

Non Citizen

0.2%

Naturalized

Place of Birth

99% of Jersey County, Illinois residents were born in the United States, with 77.37% having been born in Illinois. 0.8% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Jersey County, Illinois Place of Birth

Sources