South Wilmington, Illinois Population 2024

710

South Wilmington is a city located in Grundy County Illinois. South Wilmington has a 2024 population of 710. South Wilmington is currently declining at a rate of -0.28% annually but its population has increased by 0.57% since the most recent census, which recorded a population of 706 in 2020.

The average household income in South Wilmington is $101,408 with a poverty rate of 11.54%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in South Wilmington is 37.3 years, 34.3 years for males, and 44.2 years for females.

South Wilmington Demographics

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

  • White: 98.08%
  • Asian: 1.12%
  • Two or more races: 0.8%
  • Black or African American:
  • Native American:
  • Native Hawaiian or Pacific Islander:
  • Other race:
Land Area (mi²)
0.5 sq mi
Density (mi²)
1,443.40/sq mi
Growth Since 2020
0.57% (4)
The current population of South Wilmington, Illinois is 710 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 706.

South Wilmington, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White61298.08%
Asian71.12%
Two or more races50.8%
Black or African American
Native American
Native Hawaiian or Pacific Islander
Other race
showing: 7 rows

White

Asian

Two or more races

Black or African American

Native American

Native Hawaiian or Pacific Islander

Other race

South Wilmington Population by Race

South Wilmington Population Pyramid 2024

South Wilmington Median Age

37.3

Total

34.3

Male

44.2

Female

South Wilmington Adults

There are 479 adults, (106 of whom are seniors) in South Wilmington.

South Wilmington Age Dependency

67.3

Age Dependency Ratio

28.4

Old Age Dependency Ratio

38.9

Child Dependency Ratio

South Wilmington Sex Ratio

Female29647.44%
Male32852.56%

South Wilmington Population by Age

South Wilmington Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All2432.5790.99.1
Married1383.0994.95.1
Non Family731.2579.520.5
Female173.471000
Male153.131000
showing: 5 rows

3.05

Average Family Size

2.57

Average Household Size

90.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

South Wilmington 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

South Wilmington Educational Attainment by Sex (over 25)

South Wilmington 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 100%.

South Wilmington Educational Attainment by Race

All

Male

Female

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$53,333

Average Earnings

$74,167

Average Male

$42,143

Average Female

South Wilmington Earnings by Educational Attainment

South Wilmington Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

South Wilmington Language

98.44% of South Wilmington residents speak only English, while 1.56% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 1.22% of the population.

South Wilmington Language

South Wilmington Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White578366.23%
Hispanic3434100%
Multiple5240%
showing: 3 rows

11.54%

Overall Poverty Rate

13.41%

Male Poverty Rate

9.46%

Female Poverty Rate

Poverty in South Wilmington

The race most likely to be in poverty in South Wilmington is Hispanic, with 100% below the poverty level.

The race least likely to be in poverty in South Wilmington is White, with 6.23% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.25%. Among those working part-time, it was 21.57%, and for those that did not work, the poverty rate was 17.61%.

South Wilmington Poverty

rate

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Rate
Poverty
High School26.02%
Some College8.33%
Less Than 9th Grade5.13%
Bachelors or Greater
showing: 4 rows

South Wilmington Poverty Rate by Education

rate

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Rate
Poverty
Male Employed13.94%
Female Employed10.08%
Male Unemployed
Female Unemployed
showing: 4 rows

South Wilmington Poverty Rate by Employment Status and Sex

South Wilmington Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

South Wilmington Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

55.3%

Overall Marriage Rate

51.1%

Male Marriage Rate

60.3%

Female Marriage Rate

South Wilmington Married by Age and Sex

male

female

South Wilmington 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.

South Wilmington Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

South Wilmington Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

33

Number of Veterans

33

Male Veterans

Female Veterans

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South Wilmington Veterans by War

count

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South Wilmington Veterans by Age

count

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South Wilmington Veterans by Race

South Wilmington Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

3.03%

Veteran Poverty Rate

33.33%

Veteran Disability Rate

South Wilmington Veterans by Education

LaborForceParticipation

60.7%

Labor Force Participation

58.1%

Employment Rate

4.4%

Unemployment Rate

South Wilmington Employment by Age

LaborForceParticipation

South Wilmington Employment by Race

LaborForceParticipation

South Wilmington 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

90.06%

Born in South Wilmington

98.88%

Native Born

1.12%

Foreign Born

Non Citizen

1.12%

Naturalized

Place of Birth

98.88% of South Wilmington residents were born in the United States, with 90.06% having been born in Illinois. of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

South Wilmington Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029700-2-0.28%
2028702-2-0.28%
2027704-2-0.28%
2026706-2-0.28%
2025708-2-0.28%
2024710-2-0.28%
2023712-2-0.28%
2022714-2-0.28%
2021716101.42%
2020706639.8%
2019643-6-0.92%
2018649-3-0.46%
2017652-4-0.61%
2016656-4-0.61%
2015660-6-0.9%
2014666-3-0.45%
2013669-5-0.74%
2012674-2-0.3%
2011676-6-0.88%
2010682
showing: 20 rows

South Wilmington Population by Year