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 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.

5.5K
Total Population
4,363
Density (mi²)
15 0.27%
Growth

Williamsville Population

Williamsville Population

Data after 2023 is projected based on recent change

Demographics

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

Population by Race

White (91.2%)

Two or more races (6.6%)

Black or African American (1.3%)

Asian (0.8%)

Other race (0.1%)

Race
Population
Percentage (of total)
White4,95491.23%
Two or more races3586.59%
Black or African American701.29%
Asian450.83%
Other race30.06%

Williamsville Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

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

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)