In 2023, Williamstown, NJ had a population of 14.9k people with a median age of 40.6 and a median household income of $87,021. Between 2022 and 2023 the population of Williamstown, NJ grew from 14,770 to 14,855, a 0.575% increase and its median household income declined from $89,567 to $87,021, a −2.84% decrease.
The 5 largest ethnic groups in Williamstown, NJ are White (Non-Hispanic) (76.8%), Black or African American (Non-Hispanic) (9.15%), Two+ (Non-Hispanic) (5.81%), Two+ (Hispanic) (5.56%), and White (Hispanic) (0.976%).
None of the households in Williamstown, NJ reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
99.5% of the residents in Williamstown, NJ are U.S. citizens.
In 2023, the median property value in Williamstown, NJ was $255,000, and the homeownership rate was 79.6%.
Most people in Williamstown, NJ drove alone to work, and the average commute time was 35 minutes. The average car ownership in Williamstown, NJ was 2 cars per household.