Williamsville, New York Population 2023

5,583

Williamsville is a city located in Erie County New York. With a 2023 population of 5,583, it is the 156th largest city in New York and the 4521st largest city in the United States.Williamsville is currently growing at a rate of 1.03% annually and its population has increased by 3.14% since the most recent census, which recorded a population of 5,413 in 2020. Spanning over 1 miles, Williamsville has a population density of 4,438 people per square mile.

The average household income in Williamsville is $89,543 with a poverty rate of 9.42%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Williamsville is 45 years, 43.5 years for males, and 46.3 years for females.

Williamsville Demographics

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

  • White: 87.77%
  • Two or more races: 4.81%
  • Black or African American: 3.52%
  • Asian: 2.87%
  • Native American: 0.58%
  • Other race: 0.44%
  • Native Hawaiian or Pacific Islander: 0%
The current population of Williamsville, New York is 5,583 based on our projections of the latest US Census estimates.The last official US Census in 2020 recorded the population at 5,413.

Williamsville, New York Population 2023

Population by Race

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White

Two or more races

Black or African American

Asian

Native American

Other race

Native Hawaiian or Pacific Islander

Williamsville Population by Race

Williamsville Population Pyramid 2023

Williamsville Median Age

45

Total

43.5

Male

46.3

Female

Williamsville Adults

There are 4,211 adults, (1,324 of whom are seniors) in Williamsville.

Williamsville Age Dependency

79.9

Age Dependency Ratio

45.9

Old Age Dependency Ratio

34

Child Dependency Ratio

Williamsville Sex Ratio

Female2,73752.7%
Male2,45747.3%

Williamsville Population by Age

Williamsville Renter vs Owner Occupied by Household Type

2.83

Average Family Size

2.11

Average Household Size

68.4%

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 native american people with a rate of 100%.

The highest rate of bachelors degrees is among native american people with a rate of 100%.

Williamsville Educational Attainment by Race

All

Male

Female

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$48,879

Average Earnings

$48,306

Average Male

$53,125

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

95.01% of Williamsville residents speak only English, while 4.99% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 3.1% of the population.

Williamsville Language

Williamsville Poverty by Race

rate

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9.42%

Overall Poverty Rate

5.66%

Male Poverty Rate

10.45%

Female Poverty Rate

Poverty in Williamsville

The race most likely to be in poverty in Williamsville is Asian, with 81.21% below the poverty level.

The race least likely to be in poverty in Williamsville is White, with 6.74% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0%. Among those working part-time, it was 8.67%, and for those that did not work, the poverty rate was 25.39%.

Williamsville Poverty

rate

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Williamsville Poverty Rate by Education

rate

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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

44.3%

Overall Marriage Rate

50.1%

Male Marriage Rate

39.5%

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 55-64.

Williamsville Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Williamsville Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

277

Number of Veterans

277

Male Veterans

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

6.84%

Veteran Poverty Rate

42.97%

Veteran Disability Rate

Williamsville Veterans by Education

LaborForceParticipation

65.2%

Labor Force Participation

63.7%

Employment Rate

2%

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

76.33%

Born in Williamsville

90.41%

Native Born

5.54%

Foreign Born

2.29%

Non Citizen

3.25%

Naturalized

Place of Birth

90.41% of Williamsville residents were born in the United States, with 76.33% having been born in New York. 2.29% 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: data after 2021 is projected based on recent change
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Williamsville Population by Year