Williamsville, Illinois Population 2024

1,429

Williamsville is a city located in Sangamon County Illinois. Williamsville has a 2024 population of 1,429. Williamsville is currently declining at a rate of -0.21% annually and its population has decreased by -0.56% since the most recent census, which recorded a population of 1,437 in 2020.

The average household income in Williamsville is $126,344 with a poverty rate of 6.22%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Williamsville is 40.8 years, 39.3 years for males, and 41.9 years for females.

Williamsville Demographics

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

  • White: 91.83%
  • Two or more races: 5.72%
  • Black or African American: 1.7%
  • Asian: 0.75%
  • Native American:
  • Native Hawaiian or Pacific Islander:
  • Other race:
Land Area (mi²)
1.2 sq mi
Density (mi²)
1,188.90/sq mi
Growth Since 2020
-0.56% (-8)
The current population of Williamsville, Illinois is 1,429 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 1,437.

Williamsville, Illinois Population 2024

Population by Race

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Race
Population
Percentage (of total)
White1,34891.83%
Two or more races845.72%
Black or African American251.7%
Asian110.75%
Native American
Native Hawaiian or Pacific Islander
Other race
showing: 7 rows

White

Two or more races

Black or African American

Asian

Native American

Native Hawaiian or Pacific Islander

Other race

Williamsville Population by Race

Williamsville Population Pyramid 2024

Williamsville Median Age

40.8

Total

39.3

Male

41.9

Female

Williamsville Adults

There are 1,108 adults, (206 of whom are seniors) in Williamsville.

Williamsville Age Dependency

62.7

Age Dependency Ratio

22.8

Old Age Dependency Ratio

39.9

Child Dependency Ratio

Williamsville Sex Ratio

Female72049.05%
Male74850.95%

Williamsville Population by Age

Williamsville Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All5832.5286.313.7
Married3722.9599.50.5
Non Family1551.4758.141.9
Female532.4775.524.5
Male33.331000
showing: 5 rows

2.87

Average Family Size

2.52

Average Household Size

86.3%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Williamsville 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

Williamsville Educational Attainment by Sex (over 25)

Williamsville Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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

The highest rate of bachelors degrees is among black people with a rate of 68.75%.

Williamsville Educational Attainment by Race

All

Male

Female

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$60,688

Average Earnings

$68,375

Average Male

$51,250

Average Female

Williamsville Earnings by Educational Attainment

Williamsville Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Williamsville Language

97.47% of Williamsville residents speak only English, while 2.53% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 1.45% of the population.

Williamsville Language

Williamsville Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White1,334876.52%
Asian11327.27%
showing: 2 rows

6.22%

Overall Poverty Rate

6.58%

Male Poverty Rate

5.86%

Female Poverty Rate

Poverty in Williamsville

The race most likely to be in poverty in Williamsville is Asian, with 27.27% below the poverty level.

The race least likely to be in poverty in Williamsville is White, with 6.52% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.63%. Among those working part-time, it was , and for those that did not work, the poverty rate was 22.36%.

Williamsville Poverty

rate

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Rate
Poverty
Less Than 9th Grade70.93%
High School3.64%
Some College1.1%
Bachelors or Greater
showing: 4 rows

Williamsville Poverty Rate by Education

rate

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Rate
Poverty
Male Unemployed62.5%
Male Employed0.99%
Female Employed
Female Unemployed
showing: 4 rows

Williamsville Poverty Rate by Employment Status and Sex

Williamsville Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Williamsville Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

67.8%

Overall Marriage Rate

69.1%

Male Marriage Rate

66.6%

Female Marriage Rate

Williamsville Married by Age and Sex

male

female

Williamsville Marriage

The age group where males are most likely to be married is 35-44, while the female age group most likely to be married is 35-44.

Williamsville Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Williamsville Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

60

Number of Veterans

46

Male Veterans

14

Female Veterans

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Williamsville Veterans by War

count

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Williamsville Veterans by Age

count

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Williamsville Veterans by Race

Williamsville Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

10%

Veteran Poverty Rate

18.33%

Veteran Disability Rate

Williamsville Veterans by Education

LaborForceParticipation

70.7%

Labor Force Participation

68.7%

Employment Rate

2.1%

Unemployment Rate

Williamsville Employment by Age

LaborForceParticipation

Williamsville Employment by Race

LaborForceParticipation

Williamsville 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

90.8%

Born in Williamsville

98.16%

Native Born

1.84%

Foreign Born

0.34%

Non Citizen

1.5%

Naturalized

Place of Birth

98.16% of Williamsville residents were born in the United States, with 90.8% having been born in Illinois. 0.34% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Williamsville Place of Birth

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
20291,414-3-0.21%
20281,417-3-0.21%
20271,420-3-0.21%
20261,423-3-0.21%
20251,426-3-0.21%
20241,429-3-0.21%
20231,432-3-0.21%
20221,435-3-0.21%
20211,43810.07%
20201,437-50-3.36%
20191,487-6-0.4%
20181,493-3-0.2%
20171,49670.47%
20161,489-3-0.2%
20151,49220.13%
20141,490-1-0.07%
20131,49110.07%
20121,49080.54%
20111,48280.54%
20101,474
showing: 20 rows

Williamsville Population by Year