Williamsville Flag

Williamsville

County:
Erie County
County Seat:
No
Area (mi²):
1.258
State:
New York

Williamsville is a village located in Erie County, New York. Williamsville has a 2026 population of 5,528. Williamsville is currently growing at a rate of 0.36% annually and its population has increased by 2.16% since the most recent census, which recorded a population of 5,411 in 2020.

The median household income in Williamsville is $98,850 with a poverty rate of 5.86%. The median age in Williamsville is 49.2 years: 43.8 years for males, and 52.9 years for females. For every 100 females there are 100.3 males.

5.5K
Total Population
4,394
Density (mi²)
20 0.36%
Growth

Williamsville Population

Williamsville Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
20265,528200.36%
20255,508190.35%
20245,489260.48%
20235,463-25-0.46%
20225,488921.7%
20215,396-25-0.46%
20205,4112194.22%
20195,192-17-0.33%
20185,209-15-0.29%
20175,224140.27%
20165,210-34-0.65%
20155,244-9-0.17%
20145,253-22-0.42%
20135,275130.25%
20125,262-19-0.36%
20115,28180.15%
20105,273-27-0.51%
20005,573-10-0.18%
19905,583-434-7.21%
19806,017-818-11.97%
19706,8355198.22%
19606,3161,66735.86%
19504,6491,03528.64%
19403,61449515.87%
19303,11900%

Median Age

Overall: 49.2 years
Female: 52.9 years
Male: 43.8 years

Williamsville Adults

There are 4,546 adults, (1,693 of whom are seniors) in Williamsville.

Sex Ratio

Female: 2,730 (49.9%)
Male: 2,739 (50.1%)

Demographics

The racial composition of Williamsville includes 91.74% White, and smaller percentages for Black or African American, Asian, other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White5,01791.74%
Two or more races2885.27%
Black or African American1182.16%
Asian410.75%
Other race50.09%
Race
Population ↓
Percentage (of total)
Two or more races490.9%
White420.77%
Other race50.09%
Race
Population ↓
Percentage (of total)
White4,97590.97%
Two or more races2394.37%
Black or African American1182.16%
Asian410.75%

Williamsville Marital Status

Economics and Income Statistics

Williamsville 's average per capita income is $61,470. Household income levels show a median of $98,850. The poverty rate stands at 5.86%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$142,500-
Families$130,266$143,539
Households$98,850$110,563
Non Families$62,969$74,750

$61,470

Average Income

$98,850

Median Household Income

5.86%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)