Williamsville, New York Demographics & Population 2026
During the 2020–2024 ACS period, Williamsville, New York had a total population of 5,469, the 335th largest village in New York, with a median household income of $98,850, which is 15% higher than the state average. The poverty rate is 5.9%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Near full employment with an unemployment rate of just 1.4%.
Williamsville Quick Facts
How Williamsville Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 5,430 | 5,469 | +0.7% |
| Median household income | $106,250 | $98,850 | -7.0% |
| Median home value | $242,800 | $278,900 | +14.9% |
How Williamsville Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A less diverse community where one racial or ethnic group represents a large majority.
State average: 65 | National average: 61
Education
Educational Attainment (Adults 25+)
Williamsville Rankings in New York
Explore New York Rankings
Other Cities in Erie County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Buffalo | 276,854 | $50,041 | 26.0% | $164,200 |
| Cheektowaga | 76,056 | $68,613 | 10.7% | $185,500 |
| Tonawanda Town | 56,806 | $77,679 | 10.0% | $215,200 |
| West Seneca | 45,303 | $79,709 | 8.8% | $232,800 |
| Lackawanna | 19,753 | $52,110 | 23.2% | $140,700 |
| Kenmore | 15,044 | $77,639 | 9.1% | $208,600 |
| Tonawanda | 15,030 | $58,326 | 13.8% | $173,600 |
| Depew | 15,000 | $73,556 | 9.4% | $196,500 |
| Eggertsville | 14,894 | $82,767 | 14.0% | $248,100 |
| Lancaster | 10,113 | $66,148 | 6.7% | $202,200 |
Cities Similar to Williamsville
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Firthcliffe | 5,432 | $101,250 | $407,400 | 49.1% | 7.4% |
| Hampton Manor | 5,334 | $98,364 | $239,400 | 42.5% | 6.7% |
| East Quogue | 5,406 | $93,710 | $844,100 | 49.5% | 13.2% |
| Westvale | 5,212 | $98,542 | $214,200 | 50.3% | 2.3% |
| Fairport | 5,403 | $107,009 | $278,100 | 61.7% | 12.6% |
Population Overview
Williamsville is a small city located in New York, within Erie County. The total population is 5,469. It ranks as the 335th most populous out of 1,289 Census-designated places in New York.
Age Demographics
The median age in Williamsville is 49.2 years. This is 24% higher than the state median of 39.8 years. 16.5% of residents are 75 or older, suggesting a significant retirement-age population with implications for healthcare services and senior housing.
Economy, Income & Housing
The median household income in Williamsville is $98,850. This is 15% higher than the state median of $85,974. It is also 22% higher than the national median of $80,734. The poverty rate stands at 5.9%. This is 58% lower than the state poverty rate of 14.0%. The unemployment rate is 1.4%. This is 78% lower than the state rate of 6.4%. The median home value is $278,900. Housing costs are 34% lower than the state median of $423,800. With a home-value-to-income ratio of just 2.8x, Williamsville is one of the most affordable housing markets in the area. 63.7% of occupied housing units are owner-occupied. This homeownership rate is 17% higher than the state average of 54.4%.
Race & Ethnicity
Williamsville has a predominantly White (non-Hispanic) population, comprising 91.0% of all residents. Black or African American residents account for 2.2%. The White (non-Hispanic) population is significantly higher than the state average (91.0% vs 52.8%). The Black or African American population (2.2%) is well below the state average of 13.4%. The Hispanic or Latino population (1.8%) is well below the state average of 19.8%. The Asian population (0.8%) is well below the state average of 9.0%.
Education
61.5% of residents aged 25 and older hold a bachelor's degree or higher. This is 53% higher than the state rate of 40.2%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 98.1%. Notably, 32.3% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Williamsville, New York is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New York state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,289 Census-designated places in New York. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Williamsville, New York?
Williamsville, New York has a population of 5,469 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Williamsville, NY?
The median household income in Williamsville is $98,850, which is 22% higher than the national median of $80,734.
What is the poverty rate in Williamsville, NY?
The poverty rate in Williamsville is 5.9%. This means approximately 313 residents live below the federal poverty line.
What is the racial makeup of Williamsville, New York?
Williamsville's population is 91.0% White, 2.2% Black, 1.8% Hispanic/Latino, and 0.8% Asian.
What is the median home value in Williamsville, NY?
The median home value in Williamsville is $278,900. The home-value-to-income ratio is 2.8x.
How educated is Williamsville, New York?
61.5% of adults (25+) in Williamsville hold a bachelor's degree or higher, and 32.3% hold a graduate or professional degree.