Montgomery County, Illinois Population 2024

27,425

Montgomery County, Illinois's estimated 2024 population is 27,425 with a growth rate of -0.86% in the past year according to the most recent United States census data. Montgomery County, Illinois is the 49th largest county in Illinois. The 2010 population was 30,095 and has seen a growth of -8.87% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202926,235-238-0.9%
202826,473-238-0.89%
202726,711-238-0.88%
202626,949-238-0.88%
202527,187-238-0.87%
202427,425-238-0.86%
202327,663-238-0.85%
202227,901-181-0.64%
202128,082-120-0.43%
202028,202-199-0.7%
201928,401-304-1.06%
201828,705-76-0.26%
201728,781-276-0.95%
201629,057-139-0.48%
201529,196-254-0.86%
201429,450830.28%
201329,367-253-0.85%
201229,620-246-0.82%
201129,866-229-0.76%
201030,09500%
199030,728-958-3.02%
198031,6861,4264.71%
197030,260-984-3.15%
196031,244-1,216-3.75%
195032,460-2,039-5.91%
194034,499-779-2.21%
193035,278-6,125-14.79%
192041,4036,09217.25%
191035,3114,47514.51%
190030,8368332.78%
189030,0031,9256.86%
188028,0782,76410.92%
187025,31411,33581.09%
186013,9797,702122.7%
18506,2771,78739.8%
18404,4901,53752.05%
18302,953-23,282-88.74%
2024 Growth Rate
-0.86% (-238)
County Website
Montgomery County
County Seat
Hillsboro
2020 Population
28,202
Area
704 mi²
Density
39 people/mi²
Growth Since 2020
-2.76% (-777)
Founded
1821

Population by Race

Race
Population
Percentage (of total)
White26,22593.4%
Two or more races7852.8%
Black or African American7562.69%
Asian1530.54%
Other race1160.41%
Native American370.13%
Native Hawaiian or Pacific Islander60.02%

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Montgomery County, Illinois Population by Race

Montgomery County, Illinois Population Pyramid 2024

Montgomery County, Illinois Median Age

42.6

Total

40.4

Male

45.9

Female

Montgomery County, Illinois Adults

There are 22,429 adults, (5,895 of whom are seniors) in Montgomery County, Illinois.

Montgomery County, Illinois Age Dependency

69.8

Age Dependency Ratio

35.7

Old Age Dependency Ratio

34.2

Child Dependency Ratio

Montgomery County, Illinois Sex Ratio

Female13,19246.98%
Male14,88653.02%

Montgomery County, Illinois Population by Age

Montgomery County, Illinois Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All11,2652.2976.323.7
Married5,4223.0488.611.4
Non Family4,5071.2164.535.5
Female9072.9562.637.4
Male4292.872.327.7

2.95

Average Family Size

2.29

Average Household Size

76.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Montgomery County, Illinois Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,5617.64%
Associates Degree1,8048.83%
Bachelors Degree2,40211.76%
Graduate Degree1,3176.45%
High School Graduate8,41241.17%
Less Than 9th Grade4922.41%
Some College4,44321.75%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

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

Montgomery County, Illinois Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White18,82617,1133,559
Black6664740
2+ Races53942021
Hispanic39533246
Asian909083
Other Race46343
Native American373610
Islander660

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 92.22%.

Montgomery County, Illinois Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$52,375$70,255$44,960
Graduate Degree$68,458$66,298$69,500
High School Graduate$38,256$48,696$25,546
Less Than 9th Grade$37,060$40,382$35,403
Overall$43,855$51,618$35,894
Some College$39,334$53,176$31,891

$43,855

Average Earnings

$51,618

Average Male

$35,894

Average Female

Montgomery County, Illinois Earnings by Educational Attainment

Montgomery County, Illinois Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Montgomery County, Illinois Language

97.52% of Montgomery County, Illinois residents speak only English, while 2.48% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.35% of the population.

Montgomery County, Illinois Language

Montgomery County, Illinois Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White24,4273,16012.94%
Multiple63422435.33%
Hispanic37813635.98%
Black903134.44%
Asian153127.84%
Other7767.79%

13.78%

Overall Poverty Rate

12.94%

Male Poverty Rate

14.61%

Female Poverty Rate

Poverty in Montgomery County, Illinois

The race most likely to be in poverty in Montgomery County, Illinois is Hispanic, with 35.98% below the poverty level.

The race least likely to be in poverty in Montgomery County, Illinois is Other, with 7.79% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.44%. Among those working part-time, it was 19.52%, and for those that did not work, the poverty rate was 21.74%.

Montgomery County, Illinois Poverty

rate

Rate
Poverty
Less Than 9th Grade27.5%
High School15%
Some College11.37%
Bachelors or Greater4.71%

Montgomery County, Illinois Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed42.48%
Male Unemployed10.02%
Male Employed7.41%
Female Employed5.67%

Montgomery County, Illinois Poverty Rate by Employment Status and Sex

Montgomery County, Illinois Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$86,565$101,698
Households$61,863$80,654
Married Families$96,261$-999,999,999
Non Families$30,589$45,364

mean

median

Income by Household Type

Montgomery County, Illinois Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

48.8%

Overall Marriage Rate

45.9%

Male Marriage Rate

52.2%

Female Marriage Rate

Montgomery County, Illinois Married by Age and Sex

male

female

Montgomery 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 35-44.

Montgomery County, Illinois Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Montgomery County, Illinois Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,957

Number of Veterans

1,785

Male Veterans

172

Female Veterans

War
Veterans
Vietnam608
First Gulf War477
Second Gulf War284
Korea127
World War II11

Montgomery County, Illinois Veterans by War

count

Age Group
Veterans
35 to 54668
75+496
65 to 74430
55 to 64316
18 to 3447

Montgomery County, Illinois Veterans by Age

count

Name
Veterans
% of Total
White1,9009.1%
Hispanic6414.45%
Black476.49%
2+ Races91.6%
Native American12.7%

Montgomery County, Illinois Veterans by Race

Montgomery County, Illinois Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

9.23%

Veteran Poverty Rate

31.97%

Veteran Disability Rate

Montgomery County, Illinois Veterans by Education

LaborForceParticipation

52.3%

Labor Force Participation

49.2%

Employment Rate

5.8%

Unemployment Rate

Montgomery County, Illinois Employment by Age

LaborForceParticipation

Montgomery County, Illinois Employment by Race

LaborForceParticipation

Montgomery 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

82.61%

Born in Montgomery County, Illinois

99.01%

Native Born

0.99%

Foreign Born

0.41%

Non Citizen

0.58%

Naturalized

Place of Birth

99.01% of Montgomery County, Illinois residents were born in the United States, with 82.61% having been born in Illinois. 0.41% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Montgomery County, Illinois Place of Birth

Sources