Williamsville, Illinois Population 2022

1,415
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Williamsville is a city located in Sangamon County Illinois. With a 2020 population of 1,415, it is the 586th largest city in Illinois and the 12906th largest city in the United States. Williamsville is currently declining at a rate of -0.35% annually and its population has decreased by -3.61% since the most recent census, which recorded a population of 1,468 in 2020. Spanning over 1 miles, Williamsville has a population density of 1,177 people per square mile.

The average household income in Williamsville is $99,726 with a poverty rate of 9.82%. The median rental costs in recent years comes to $803 per month, and the median house value is $162,900. The median age in Williamsville is 38.7 years, 35.7 years for males, and 40.4 years for females.

Williamsville Demographics

According to the most recent ACS, the racial composition of Williamsvillewas:

  • White: 97.00%
  • Two or more races: 2.25%
  • Asian: 0.75%
  • Black or African American: 0.00%
  • Native American: 0.00%
  • Native Hawaiian or Pacific Islander: 0.00%
  • Other race: 0.00%
The current population of Williamsville, Illinois is 1,415 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 1,468.

Williamsville, Illinois Population 2022

Population by Race

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Williamsville Population by Race

Williamsville Population Pyramid 2022

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Williamsville Median Age

39


Total

37.1


Male

40.5


Female

Williamsville Adults

There are 1,122 adults, (211 of whom are seniors) in Williamsville.

Williamsville Age Dependency

Age Dependency Ratio

23.2

Old Age Dependency Ratio

38

Child Dependency Ratio

Williamsville Sex Ratio

Female

723

49.25%

Male

745

50.75%

Williamsville Population by Age

Williamsville Renter vs Owner Occupied by Household Type

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Williamsville Household Types

83.5%

Rate of Home Ownership

Williamsville Households and Families

2.94

Average Family Size

2.5

Average Household Size

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Williamsville Households by Type

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Williamsville Educational Attainment by Sex (over 25)

Williamsville Educational Attainment by Race

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The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among 2+ races people with a rate of 75.86%.

Williamsville Educational Attainment by Race

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$51,167

Average Earnings

$60,694

Average Male

$46,295

Average Female

Williamsville Earnings by Educational Attainment

Williamsville Language by Age

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Williamsville Language

98.92% of Williamsville residents speak only English, while 1.08% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 0.65% of the population.

Williamsville Language

Williamsville Poverty by Race

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9.82%

Overall Poverty Rate

10.75%

Male Poverty Rate

8.88%

Female Poverty Rate

Poverty in Williamsville

The race most likely to be in poverty in Williamsville is Asian, with 36.36% below the poverty level.

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

The poverty rate among those that worked full-time for the past 12 months was 1.98%. Among those working part-time, it was 12.44%, and for those that did not work, the poverty rate was 23.36%.

Williamsville Poverty

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Williamsville Poverty Rate by Education

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Williamsville Poverty Rate by Employment Status and Sex

Williamsville Income by Household Type

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Income by Household Type

Williamsville Marital Status

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Marriage Rates

60.9%

Overall Marriage Rate

65.4%

Male Marriage Rate

56.8%

Female Marriage Rate

Williamsville Married by Age and Sex

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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 45-54.

Williamsville Marital Status by Race

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Williamsville Marital Status

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58

Number of Veterans

Male Veterans

Female Veterans

Williamsville Veterans by War

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Williamsville Veterans by Age

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Williamsville Veterans by Race

Williamsville Veterans by Education

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10.34%

Veteran Poverty Rate

17.24%

Veteran Disability Rate

Williamsville Veterans by Education

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71.9%

Labor Force Participation

70.2%

Employment Rate

1.6%

Unemployment Rate

Williamsville Employment by Age

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Williamsville Employment by Race

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Williamsville Employment by Education

Origin of Non-Citizens

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Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

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90.33%

Born in Williamsville

99.18%

Native Born

0.82%

Foreign Born

0.48%

Non Citizen

0.34%

Naturalized

Place of Birth

99.18% of Williamsville residents were born in the United States, with 90.33% having been born in Illinois. 0.48% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Williamsville Place of Birth

Note: 2021 and 2022 data is projected

Williamsville Population by Year