Erie County > Williamsville (village)
Population trend for Williamsville
08,0001970: 6,8356,83519701980: 6,0176,01719801990: 5,5835,58319902000: 5,5735,57320002010: 5,3005,30020102020: 5,4235,42320202023: 5,4305,4302023
U.S. Census Bureau ACS, IPUMS

Williamsville is a village in the towns of Amherst and Cheektowaga in the Western New York region.

2023 Median income for Erie County communities
American Community Survey, 2023
2000
Erie County home price index (FHFA)
1975–2024: Home prices rose about 765%.

285 159 33 1975 2024

The numbers at left represent an index, not dollar prices. The index is set to 100 in the year 2000.

Federal Reserve Bank of St. Louis (FRED)
Occupied housing units in Williamsville
American Community Survey, 2023
Household types in Williamsville
Married-couple families: 1,088 (78.4%) Married-couple families Male householder (no spouse): 78 (5.6%) Male householder (no spouse) Female householder (no spouse): 221 (15.9%) Female householder (no spouse) Householder living alone: 1,145 (87.9%) Householder living alone Householder not living alone: 158 (12.1%) Householder not living alone Family Nonfamily
ACS, 2023
Poverty rates by age group in Williamsville

Pct 5 and under 0% Pct 6 to 17 4% Pct 18 to 64 6% Pct 65 and over 8%

The overall poverty rate in Williamsville is 6 percent.
The highest rate is found among residents ages 65 and over.
Year: 2023

ACS, 2023

Where residents of Williamsville lived in the prior year

Same house: 4,545 (85.1%) Same county (different house): 614 (11.5%) Different state: 133 (2.5%) 5,338 current residents Same house: 4,545 (85.1%) Same house Same county (different house): 614 (11.5%) Same county (different house) Different state: 133 (2.5%) Different state Different NY county: 43 (0.8%) Different NY county (under 1%) Abroad: 3 (0.1%) Abroad (under 1%)
U.S. Census ACS, 2023
Median age of Williamsville residents
42.9 50.7 45 49.7 2010 2015 2020 2023


The margin of error can be high in 2023 estimates, particularly for small towns and villages.

Changes in median age can also indicate a shift in the number of school-age children; see the Education page for enrollment trends.

U.S. Census Bureau