Williamsville is a city of 5,469 people in New York. 61% of adults hold a bachelor's degree, against 36% nationally. At a median age of 49.2, this is an older place than the country as a whole. That puts it in the top 8% of US cities for household income. Density works out to 4,347 people per square mile. The foreign-born share is 3%.
At a glance
Wealthier
median household income $98,850, above the US median
US median: $82,259
Older
median age 49.2
US median: 38.9
More educated
61% hold a bachelor's degree
US average: 36%
Less affordable
home values up 51%, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about Williamsville
What changed most since 1990
White share98.8% → 91.0%(−7.8 pts)US over the same years: −17.8 pts
Adults with a bachelor's degree36.9% → 61.5%(+24.5 pts)US over the same years: +15.3 pts
Median home value (2024 dollars)$210,966 → $278,900(+32%)US over the same years: +67%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)0%(0)
US avg: 26.4%
Gulf War (1990s)13%(43)
US avg: 24.3%
Vietnam era50.3%(166)
US avg: 33.1%
Korean War6.1%(20)
US avg: 4.5%
World War II15.2%(50)
US avg: 1%
Share of the 330 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
Williamsville, decade by decade
Williamsville population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
5,583
$79,709
$210,966
36.9%
3.0
2000
5,573
$86,632
$184,351
45.2%
8.7
2010
5,300
$94,055
$222,403
56.6%
22.3
2020
5,423
$91,294
$231,742
62.8%
33.2
2024
5,469
$98,850
$278,900
61.5%
21.2
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
