United States › New Jersey › Mountainside CITY · 2020 ACS
Mountainside New Jersey · 7,020 residents · 4.00 sq mi
Time machine
COMPARE TO 1990 Census 2000 Census 2009 ACS 2010 ACS 2011 ACS 2012 ACS 2013 ACS 2014 ACS 2015 ACS 2016 ACS 2017 ACS 2018 ACS 2019 ACS 2021 ACS 2022 ACS 2023 ACS 2024 ACS
The short version
With 7,020 people, Mountainside is a city in New Jersey. Median rent is $3,432 a month. Home values have more than doubled since 2000, reaching $637,400. Owners hold 94% of the housing stock. 58% of adults hold a bachelor's degree, against 33% nationally. At a median age of 46.6, this is an older place than the country as a whole.
At a glance
Wealthier
above the US median
US median: $66,278
Older
median age 46.6
US median: 38.8
More educated
58% hold a bachelor's degree
US average: 33%
Stable housing
home values roughly flat, inflation adjusted
US median home: $265,253
Section 01
Population & growth from 46.4 in 2000
US average: 38.8
Population, 1990 – 2024
6K 7K 7K 7K 7K 1990 2000 2010 2020 2024 Mountainside Age distribution, 2020
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Section 02
Income & economy $121,172
−17%inflation adjusted, since 2000
from $97,195 in 2000
US average: $66,278
from $47,474 in 2000
US average: $35,364
Households earning $100K+
from 70.3% in 2009
US average: 43.9%
from 3.0% in 2000
US average: 12.8%
Workforce by industry, 2020
Public administration 13.9%
Transportation & warehousing 4.4%
Arts, entertainment, food 3.7%
Professional, scientific, technical 3.3%
Agriculture, forestry, fishing 0%
Education & health services 0%
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$637,400
+23%inflation adjusted, since 2000
from $344,800 in 2000
US average: $265,253
$3,432
+140%inflation adjusted, since 2000
from $950 in 2000
US average: $1,124
from 94.6% in 2000
5.9% rent
from 2.68 people in 2009
US average: 2.61
from 5.0 in 2009
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
Section 04
Race & ethnicity 2000
White, non-Hispanic 92.6%(6,111)
2020
White, non-Hispanic 78.3%(5,498)
Hispanic / Latino 9.5%(667)
No data for the years selected.
Section 04 · Origins
Detailed origins & ancestry Ancestry
+ 17 more ancestry groups with data from 47.9% in 2000
US average: 32.9%
High school or higher
from 92.6% in 2000
US average: 88.5%
from 21.9% in 2000
US average: 12.7%
Section 06
Commute & transportation from 20.8 min in 2000
US average: 26.9
from 87.4% in 2009
US average: 75.1%
from 3.1% in 2009
US average: 8.4%
Section 07
Work & employment from 3.9% in 2011
US average: 5.4%
from 63.9% in 2011
US average: 63.4%
Women 20-64 in the labor force
US average: 73.3%
from 58.6% in 2009
US average: 39.3%
Section 08
People & community from 11.8% in 2009
US average: 13.5%
from 3.4% in 2013
US average: 8.8%
Computer in household
US average: 91.9%
Marital status (2024)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage from 3.4% in 2013
US average: 8.8%
Direct-purchase
US average: 13.7%
VA health care
US average: 2.3%
Any private
US average: 68.1%
Any public
US average: 35.2%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans Veterans by period of service, 2020
Gulf War (2001 or later) 4.7%(14)
Share of the 301 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
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Drill deeper
Places similar to Mountainside Head to head
Compare Mountainside to nearby cities MOUNTAINSIDE VS
Westfield
Income $232,629 +92%
Home value $953,400 +50%
Population 32,595 +344%
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MOUNTAINSIDE VS
Summit
Income $190,304 +57%
Home value $994,500 +56%
Population 23,314 +217%
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MOUNTAINSIDE VS
New Providence
Income $161,599 +33%
Home value $769,900 +21%
Population 14,092 +92%
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MOUNTAINSIDE VS
Fanwood
Income $195,529 +61%
Home value $635,200 same
Population 8,035 +9%
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Frequently asked
How many people live in Mountainside, New Jersey? Mountainside, New Jersey has about 7,020 residents according to the 2020 American Community Survey.
What is the median household income in Mountainside, New Jersey? The typical household in Mountainside, New Jersey earns about $121,172 a year. Half of households make more than that, and half make less.
Is Mountainside, New Jersey expensive? In Mountainside, New Jersey, the median home is worth about $637,400, and the typical rent is about $3,432 a month.
How educated are people in Mountainside, New Jersey? About 57.5% of adults age 25 and over in Mountainside, New Jersey hold a bachelor's degree or higher.
What is the poverty rate in Mountainside, New Jersey? About 1.6% of people in Mountainside, New Jersey live below the federal poverty line.
Has Mountainside, New Jersey grown since 1990? Yes, Mountainside, New Jersey has grown since 1990. The population has added about 363 residents, a change of about 5 percent over that period.
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