Somonauk, Illinois Population 2024

1,751

Somonauk is a city located in DeKalb County, Kendall County, and LaSalle County Illinois. Somonauk has a 2024 population of 1,751. Somonauk is currently declining at a rate of -0.51% annually and its population has decreased by -1.9% since the most recent census, which recorded a population of 1,785 in 2020.

The average household income in Somonauk is $101,771 with a poverty rate of 6.13%. The median age in Somonauk is 38.9 years: 38.5 years for males, and 40.2 years for females.

Somonauk Demographics

According to the most recent ACS, the racial composition of Somonauk was:

  • White: 94.99%
  • Two or more races: 2.95%
  • Other race: 1.95%
  • Black or African American: 0.11%
  • Native American: 0%
  • Asian: 0%
  • Native Hawaiian or Pacific Islander: 0%
Land Area (mi²)
2.5 sq mi
Density (mi²)
700.20/sq mi
Growth Since 2020
-1.9% (-34)
The current population of Somonauk, Illinois is 1,751 based on our projections of the latest US Census estimates (released May 2024). The last official US Census in 2020 recorded the population at 1,785.

Population by Race

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Race
Population
Percentage (of total)
White1,70794.99%
Two or more races532.95%
Other race351.95%
Black or African American20.11%
Native American00%
Asian00%
Native Hawaiian or Pacific Islander00%

White

Two or more races

Other race

Black or African American

Native American

Asian

Native Hawaiian or Pacific Islander

Somonauk Population by Race

Somonauk Population Pyramid 2024

Somonauk Median Age

38.9

Total

38.5

Male

40.2

Female

Somonauk Adults

There are 1,366 adults, (365 of whom are seniors) in Somonauk.

Somonauk Age Dependency

79.5

Age Dependency Ratio

36.5

Old Age Dependency Ratio

43.1

Child Dependency Ratio

Somonauk Sex Ratio

Female95753.26%
Male84046.74%

Somonauk Population by Age

Somonauk Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All6762.6671.628.4
Married3893.382.517.5
Non Family2021.125446
Female753.4858.741.3
Male102.81000

3.23

Average Family Size

2.66

Average Household Size

71.6%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Somonauk Households and Families

Male

Female

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Education Attained
Count
Percentage
9th to 12th Grade453.77%
Associates Degree13211.06%
Bachelors Degree16513.82%
Graduate Degree826.87%
High School Graduate43636.52%
Less Than 9th Grade30.25%
Some College33127.72%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Somonauk Educational Attainment by Sex (over 25)

Somonauk Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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Race
Total
High School
Bachelors
White1,1271,088240
Hispanic38292
2+ Races26210
Other Race1395
Black220

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

The highest rate of bachelors degrees is among other race people with a rate of 38.46%.

Somonauk Educational Attainment by Race

All

Male

Female

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Name
Average
Male
Female
Bachelors Degree$62,500$71,875$59,375
Graduate Degree$57,625$0$0
High School Graduate$32,120$56,917$24,167
Less Than 9th Grade$0$0$0
Overall$43,816$59,826$30,458
Some College$44,583$77,500$35,417

$43,816

Average Earnings

$59,826

Average Male

$30,458

Average Female

Somonauk Earnings by Educational Attainment

Somonauk Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Somonauk Language

98.65% of Somonauk residents speak only English, while 1.35% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.35% of the population.

Somonauk Language

Somonauk Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White1,646845.1%
Hispanic742432.43%
Black22100%

6.13%

Overall Poverty Rate

4.88%

Male Poverty Rate

7.24%

Female Poverty Rate

Poverty in Somonauk

The race most likely to be in poverty in Somonauk is Black, with 100% below the poverty level.

The race least likely to be in poverty in Somonauk is White, with 5.1% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.74%. Among those working part-time, it was 12.84%, and for those that did not work, the poverty rate was 8.68%.

Somonauk Poverty

rate

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Rate
Poverty
Less Than 9th Grade14.58%
High School10.55%
Some College5.4%
Bachelors or Greater1.21%

Somonauk Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed17.65%
Female Employed9.7%
Male Employed1.03%
Female Unemployed0%

Somonauk Poverty Rate by Employment Status and Sex

Somonauk Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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Name
Median
Mean
Families$93,214$122,088
Households$78,750$101,771
Married Families$104,205$-999,999,999
Non Families$32,500$45,906

mean

median

Income by Household Type

Somonauk Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.8%

Overall Marriage Rate

66.2%

Male Marriage Rate

47.7%

Female Marriage Rate

Somonauk Married by Age and Sex

male

female

Somonauk 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.

Somonauk Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Somonauk Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

90

Number of Veterans

79

Male Veterans

11

Female Veterans

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War
Veterans
Second Gulf War22
Vietnam19
Korea17
First Gulf War14
World War II0

Somonauk Veterans by War

count

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Age Group
Veterans
75+30
35 to 5423
55 to 6416
65 to 7416
18 to 345

Somonauk Veterans by Age

count

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Name
Veterans
% of Total
White836.27%
2+ Races725%
Hispanic37.89%

Somonauk Veterans by Race

Somonauk Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

7.78%

Veteran Poverty Rate

24.44%

Veteran Disability Rate

Somonauk Veterans by Education

LaborForceParticipation

62.8%

Labor Force Participation

60.7%

Employment Rate

3.4%

Unemployment Rate

Somonauk Employment by Age

LaborForceParticipation

Somonauk Employment by Race

LaborForceParticipation

Somonauk 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

85.48%

Born in Somonauk

98.83%

Native Born

1.17%

Foreign Born

0.5%

Non Citizen

0.67%

Naturalized

Place of Birth

98.83% of Somonauk residents were born in the United States, with 85.48% having been born in Illinois. 0.5% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Somonauk Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20291,710-8-0.47%
20281,718-8-0.46%
20271,726-9-0.52%
20261,735-8-0.46%
20251,743-8-0.46%
20241,751-9-0.51%
20231,760-10-0.56%
20221,770-15-0.84%
20211,78500%
20201,785-90-4.8%
20191,87550.27%
20181,870-2-0.11%
20171,87220.11%
20161,870-3-0.16%
20151,873-5-0.27%
20141,87860.32%
20131,872-5-0.27%
20121,877-2-0.11%
20111,879-13-0.69%
20101,89200%

Somonauk Population by Year