Henry County, Illinois Population 2024

48,300

Henry County, Illinois's estimated 2024 population is 48,300 with a growth rate of -0.31% in the past year according to the most recent United States census data. Henry County, Illinois is the 29th largest county in Illinois. The 2010 population was 50,459 and has seen a growth of -4.28% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202947,560-148-0.31%
202847,708-148-0.31%
202747,856-148-0.31%
202648,004-148-0.31%
202548,152-148-0.31%
202448,300-148-0.31%
202348,448-148-0.3%
202248,596-315-0.64%
202148,911-256-0.52%
202049,1672340.48%
201948,933-149-0.3%
201849,082-140-0.28%
201749,222-289-0.58%
201649,511-143-0.29%
201549,654-187-0.38%
201449,841-91-0.18%
201349,932-331-0.66%
201250,263-30-0.06%
201150,293-166-0.33%
201050,45900%
199051,159-6,809-11.75%
198057,9684,7518.93%
197053,2173,9007.91%
196049,3172,8256.08%
195046,4922,6946.15%
194043,798-53-0.12%
193043,851-1,311-2.9%
192045,1623,4268.21%
191041,7361,6874.21%
190040,0496,71120.13%
189033,338-3,259-8.91%
188036,5971,0913.07%
187035,50614,84671.86%
186020,66016,853442.68%
18503,8072,547202.14%
18401,2601,2192973.17%
183041-47,519-99.91%
2024 Growth Rate
-0.31% (-148)
County Website
Henry County
County Seat
Cambridge
2020 Population
49,167
Area
823 mi²
Density
59 people/mi²
Growth Since 2020
-1.76% (-867)
Founded
January 13, 1825

Population by Race

Race
Population
Percentage (of total)
White43,31688.49%
Two or more races3,0646.26%
Other race1,2902.64%
Black or African American1,0712.19%
Asian1920.39%
Native Hawaiian or Pacific Islander100.02%
Native American50.01%

White

Two or more races

Other race

Black or African American

Asian

Native Hawaiian or Pacific Islander

Native American

Henry County, Illinois Population by Race

Henry County, Illinois Population Pyramid 2024

Henry County, Illinois Median Age

43.4

Total

42.5

Male

44

Female

Henry County, Illinois Adults

There are 38,155 adults, (10,364 of whom are seniors) in Henry County, Illinois.

Henry County, Illinois Age Dependency

76.1

Age Dependency Ratio

37.3

Old Age Dependency Ratio

38.8

Child Dependency Ratio

Henry County, Illinois Sex Ratio

Female24,68450.43%
Male24,26449.57%

Henry County, Illinois Population by Age

Henry County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All20,2612.3880.419.6
Married10,3812.9593.76.3
Non Family6,8921.1569.930.1
Female2,0573.1852.347.7
Male9313.3672.227.8

2.92

Average Family Size

2.38

Average Household Size

80.4%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Henry County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,8115.2%
Associates Degree4,15611.93%
Bachelors Degree5,79016.62%
Graduate Degree2,6927.73%
High School Graduate11,74933.72%
Less Than 9th Grade9512.73%
Some College7,69722.09%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Henry County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White31,32829,2517,749
Hispanic1,7971,411368
2+ Races1,6241,415431
Other Race794532173
Black67553017
Asian1119359
Native American550

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 asian people with a rate of 53.15%.

Henry County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$65,087$90,777$50,712
Graduate Degree$80,779$88,728$78,152
High School Graduate$38,956$51,677$31,258
Less Than 9th Grade$34,276$39,795$27,386
Overall$49,201$59,773$40,630
Some College$47,628$59,317$37,816

$49,201

Average Earnings

$59,773

Average Male

$40,630

Average Female

Henry County, Illinois Earnings by Educational Attainment

Henry County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Henry County, Illinois Language

95.95% of Henry County, Illinois residents speak only English, while 4.05% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.2% of the population.

Henry County, Illinois Language

Henry County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White42,1443,3487.94%
Hispanic3,2072959.2%
Multiple3,0191996.59%
Other1,27814911.66%
Black844657.7%
Asian19263.13%

8.06%

Overall Poverty Rate

6.95%

Male Poverty Rate

9.15%

Female Poverty Rate

Poverty in Henry County, Illinois

The race most likely to be in poverty in Henry County, Illinois is Other, with 11.66% below the poverty level.

The race least likely to be in poverty in Henry County, Illinois is Asian, with 3.13% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.96%. Among those working part-time, it was 8.23%, and for those that did not work, the poverty rate was 14.32%.

Henry County, Illinois Poverty

rate

Rate
Poverty
Less Than 9th Grade18.76%
High School11.44%
Some College6.48%
Bachelors or Greater1.22%

Henry County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed30.9%
Male Unemployed12.24%
Female Employed3.77%
Male Employed2.7%

Henry County, Illinois Poverty Rate by Employment Status and Sex

Henry County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$89,207$110,463
Households$69,912$91,842
Married Families$105,078$-999,999,999
Non Families$41,340$50,477

mean

median

Income by Household Type

Henry County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

53.3%

Overall Marriage Rate

52.9%

Male Marriage Rate

53.7%

Female Marriage Rate

Henry County, Illinois Married by Age and Sex

male

female

Henry 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.

Henry County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Henry County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

2,965

Number of Veterans

2,739

Male Veterans

226

Female Veterans

War
Veterans
Vietnam1,002
Second Gulf War865
First Gulf War601
Korea94
World War II32

Henry County, Illinois Veterans by War

count

Age Group
Veterans
35 to 54777
75+668
65 to 74642
55 to 64534
18 to 34344

Henry County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White2,7367.93%
Hispanic1878.78%
2+ Races1498.17%
Black436.16%
Other Race343.51%
Asian32.27%

Henry County, Illinois Veterans by Race

Henry County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

8.62%

Veteran Poverty Rate

25.49%

Veteran Disability Rate

Henry County, Illinois Veterans by Education

LaborForceParticipation

62.4%

Labor Force Participation

59.8%

Employment Rate

4%

Unemployment Rate

Henry County, Illinois Employment by Age

LaborForceParticipation

Henry County, Illinois Employment by Race

LaborForceParticipation

Henry 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

77.27%

Born in Henry County, Illinois

98.38%

Native Born

1.62%

Foreign Born

0.64%

Non Citizen

0.98%

Naturalized

Place of Birth

98.38% of Henry County, Illinois residents were born in the United States, with 77.27% having been born in Illinois. 0.64% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Henry County, Illinois Place of Birth

Sources