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.
91.2% of the residents in Mountainside, NJ are U.S. citizens.
In 2024, the median property value in Mountainside, NJ was $810,300, and the homeownership rate was 87.9%.
Most people in Mountainside, NJ drove alone to work, and the average commute time was 36 minutes. The average car ownership in Mountainside, NJ was 2 cars per household.