Williamsville, NY population, income and ZIP codes

Williamsville village is a mid-size town in New York, with 5,430 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #342 of 1,292 ranked by population — larger than 73% of them. The median age here is 49.7 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Williamsville village earn a median of $106,250 a year, 35.3% above the national figure of $78,538 and 16% above the $91,806 median for the 847 New York cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 5.5% of residents here, less than half the 12.4% national rate.

The typical owner-occupied home in Williamsville village is valued at $242,800, 20% below the national figure and 23% below the $315,800 peer median, while median gross rent runs $1,277 a month, 9.2% below the national figure, or roughly $15,324 across a full year. A household on the local median income would put about 14.4% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 2.3×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 67.4% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.