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 2025 population of 5,488. Williamsville is currently growing at a rate of 0.27% annually and its population has increased by 1.39% since the most recent census, which recorded a population of 5,413 in 2020.

The average household income in Williamsville is $116,603 with a poverty rate of 5.46%. The median age in Williamsville is 49.7 years: 46 years for males, and 52.6 years for females.

Demographics

The racial composition of Williamsville includes 91.23% White, and smaller percentages for Black or African American, Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,954	91.23%
Two or more races	358	6.59%
Black or African American	70	1.29%
Asian	45	0.83%
Other race	3	0.06%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Williamsville Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Williamsville's average per capita income is $59,567. Household income levels show a median of $106,250. The poverty rate stands at 5.46%.

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	$148,929	-
Families	$129,230	$151,528
Households	$106,250	$116,603
Non Families	$71,939	$77,676

$59,567

Average Income

$106,250

Median Household Income

5.46%

Poverty Rate