Mountainside, NJ
Population 6,967 · New Jersey
About Mountainside, NJ
Mountainside is a small town located in New Jersey with a population of 6,967 residents according to the latest US Census Bureau American Community Survey data. The median household income is $210,100 per year, which is 180% above the national median of $75,149. The median age of 48.7 years is notably older the US median age of 38.9 years, suggesting a more established community with a higher proportion of long-term residents.
Housing Market Overview
The housing market in Mountainside features a median home value of $755,600, which is 209% above the national median of $244,900. This places Mountainside in a higher-cost housing market, where property demand often outpaces supply. Median monthly rent is $3,501, 201% above the national average of $1,163/month. Of the 2,616 total housing units, 87% are owner-occupied (2,206 units) and 13% are renter-occupied (334 units). The high homeownership rate suggests a stable, established residential community.
Economy & Employment
The local economy in Mountainside shows an unemployment rate of 2.1%, which is lower than the national rate of 3.7%, indicating a relatively strong job market. The poverty rate stands at 2.8%, below the national average of 12.4%, reflecting generally favorable economic conditions. Workers in Mountainside have an average one-way commute time of 38.9 minutes, suggesting many residents commute to jobs in a nearby metro area.
Education & Demographics
66.2% of Mountainside residents aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This significantly higher educational attainment rate often correlates with access to knowledge-economy jobs and higher household incomes. The community's demographic composition includes 0.0% White, 0.0% Hispanic or Latino, 0.3% Black or African American, and 9.4% Asian residents, with 18.5% of the population being foreign-born.
How Mountainside Ranks in New Jersey
Cost of Living in Mountainside, NJ
Compared to national averages, Mountainside has a median household income of $210,100 (180% above the national median of $75,149). Home values average $755,600, which is 209% above the national median. Monthly rent at $3,501 is 201% above the US average of $1,163. Within New Jersey, Mountainside's income is 82% above the state average of $115,667, and home values are 61% above the state median of $469,644.
Why Live in Mountainside, NJ?
Mountainside offers a strong local economy with a median household income of $210,100, well above the national average, and a strong job market with an unemployment rate of just 2.1%, and a well-educated community where 66.2% of residents hold a bachelor’s degree or higher. Additionally, the city features a low poverty rate of 2.8%, better than the national average.
Potential considerations include a competitive housing market where the typical home costs $755,600. However, Mountainside’s smaller community size offers a quieter lifestyle and tight-knit neighborhoods.
Mountainside has a population of 6,967 with a median age of 48.7 years. Compare Mountainside with other cities to see how it stacks up, or explore all cities in New Jersey.
Similar Cities Near Mountainside
Cities in New Jersey with a similar population size.
| City | Population | Median Income | Home Value | |
|---|---|---|---|---|
| Stratford | 6,965 | $100,735 | $238,200 | Compare |
| Linwood | 6,954 | $135,904 | $351,100 | Compare |
| Milltown | 6,994 | $119,958 | $423,000 | Compare |
| Midland Park | 6,996 | $140,063 | $586,200 | Compare |
| Lincroft | 6,901 | $168,945 | $719,000 | Compare |
| Barrington | 7,047 | $84,334 | $244,400 | Compare |
| Allendale | 6,820 | $156,992 | $764,600 | Compare |
| Keyport | 7,159 | $79,036 | $374,800 | Compare |
Demographics
Racial & Ethnic Composition
Economy & Education
Housing
Other Cities in New Jersey
Data source: US Census Bureau ACS 5-Year Estimates. Last updated: 2026-04-05.
Compare Mountainside With Other Cities
Frequently Asked Questions about Mountainside
What is the population of Mountainside, NJ?
The population of Mountainside, NJ is 6,967 according to the latest US Census Bureau American Community Survey estimates. This makes it a small town in New Jersey.
What is the median household income in Mountainside?
The median household income in Mountainside, NJ is $210,100 per year, which is 180% above the national median of $75,149.
What is the median home value in Mountainside?
The median home value in Mountainside, NJ is $755,600, which is 209% above the national median of $244,900. The majority of housing units are owner-occupied.
What is the average rent in Mountainside?
The median monthly rent in Mountainside, NJ is $3,501, which is 201% above the national average of $1,163/month.
What is the unemployment rate in Mountainside?
The unemployment rate in Mountainside, NJ is 2.1%, compared to the national average of 3.7%. This lower-than-average rate suggests a relatively healthy local job market.
Is Mountainside, NJ a good place to live?
Mountainside offers above-average incomes, a competitive housing market, and a strong job market. With a population of 6,967 and a median age of 48.7, the city appeals to established professionals and retirees.
How educated is Mountainside, NJ?
66.2% of residents in Mountainside aged 25 and older hold a bachelor's degree or higher, compared to the national average of 33.7%. This above-average educational attainment often reflects a knowledge-based local economy.
What is the cost of living in Mountainside?
Key cost-of-living indicators for Mountainside, NJ: median home value is $755,600 (209% above national), median rent is $3,501/month, and median household income is $210,100. The home-value-to-income ratio is 3.6x, a moderate figure by national standards.
What is the poverty rate in Mountainside?
The poverty rate in Mountainside, NJ is 2.8%, compared to the national average of 12.4%. This below-average poverty rate reflects generally favorable economic conditions in the community.
How diverse is Mountainside, NJ?
Mountainside's population is 0.0% White, 0.0% Hispanic or Latino, 0.3% Black or African American, 9.4% Asian, and 1.1% two or more races. 18.5% of residents are foreign-born.