In 2021, Mountainside, NJ had a population of 7k people with a median age of 51 and a median household income of $133,365. Between 2020 and 2021 the population of Mountainside, NJ grew from 6,859 to 7,003, a 2.1% increase and its median household income grew from $121,172 to $133,365, a 10.1% increase.
The 5 largest ethnic groups in Mountainside, NJ are White (Non-Hispanic) (74.2%), Asian (Non-Hispanic) (9.92%), Two+ (Hispanic) (8.38%), White (Hispanic) (3.04%), and Black or African American (Non-Hispanic) (2.3%).
None of the households in Mountainside, 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.
93.5% of the residents in Mountainside, NJ are U.S. citizens.
In 2021, the median property value in Mountainside, NJ was $649,600, and the homeownership rate was 84%.
Most people in Mountainside, NJ drove alone to work, and the average commute time was 38.3 minutes. The average car ownership in Mountainside, NJ was 2 cars per household.