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CITY · 2020 ACS

Mountainside

New Jersey · 7,020 residents · 3.996 sq mi
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The short version

Mountainside is significantly wealthier than the US average, with a median household income of $121,172. Population has held roughly steady since 2000. 58% of adults hold a bachelor's degree or higher, well above the national rate of 33%. Median home value has more than doubled since 2000, reaching $637,400. With a median age of 46.6, the population is older than the US median of 38.8. Households here earn about 42% more than the New Jersey median.

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

Total population
7,020
+6%since 2000
from 6,602 in 2000
1990 – 2025
Population density
1,757 / sq mi
+6%since 2000
from 1,652 / sq mi in 2000
US average: 280
Median age
46.6
Unchangedsince 2000
from 46.4 in 2000
US average: 38.8
Population, 1990 – 2024
6K7K7K7K7K1990201020202024Mountainside
20247K
1990201020202024
Section 02

Income & economy

Median household income
$121,172
−17%inflation adjusted, since 2000
from $97,195 in 2000
US average: $66,278
1990 – 2024
Per capita income
$59,332
+25%since 2000
from $47,474 in 2000
US average: $35,364
Households earning $100K+
69.4%
−0.9 ptssince 2009
from 70.3% in 2009
US average: 43.9%
Poverty rate
1.6%
−1.4 ptssince 2000
from 3.0% in 2000
US average: 12.8%
Workforce by industry, 2020
Other services14.4%
US avg: 6.6%
Public administration13.9%
US avg: 4.7%
Retail trade9.6%
US avg: 10%
Information7.2%
US avg: 11.1%
Transportation & warehousing4.4%
US avg: 2.5%
Arts, entertainment, food3.7%
US avg: 2%
Finance & insurance3.3%
US avg: 5.5%
Professional, scientific, technical3.3%
US avg: 4.7%
Wholesale trade2.4%
US avg: 6.7%
Agriculture, forestry, fishing0%
US avg: 1.7%
Construction0%
US avg: 1.2%
Manufacturing0%
US avg: 0.5%
Education & health services0%
US avg: 0.8%
BARS: THIS PLACE · TICKS: US AVERAGE
Section 03

Housing

Median home value
$637,400
+23%inflation adjusted, since 2000
from $344,800 in 2000
US average: $265,253
1990 – 2024
Median gross rent
$3,432
+140%inflation adjusted, since 2000
from $950 in 2000
US average: $1,124
Owner-occupied
94.1%
−0.5 ptssince 2000
from 94.6% in 2000
5.9% rent
Afford Score
5.3
+48%since 2000
from 3.5 in 2000
1990 – 2024
RELATED:See current rent listings in Mountainside on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic92.6%(6,111)
Black0.9%(61)
Hispanic / Latino3%(199)
Asian2.7%(180)
Other0%
Diversity Score16%(1,057)
2020
White, non-Hispanic78.3%(5,498)
Black1.9%(134)
Hispanic / Latino9.5%(667)
Asian6.6%(466)
Other0.7%(48)
Diversity Score41.8%(2,932)
Diversity Score
42
+161%since 2000
from 16 in 2000
1990 – 2024
Section 05

Education

Bachelor's degree or higher
57.5%
+9.6 ptssince 2000
from 47.9% in 2000
US average: 32.9%
High school or higher
95.0%
+2.3 ptssince 2000
from 92.6% in 2000
US average: 88.5%
Graduate degree
25.7%
+3.8 ptssince 2000
from 21.9% in 2000
US average: 12.7%
Section 06

Commute & transportation

Average commute
37.1 min
+78%since 2000
from 20.8 min in 2000
US average: 26.9
Drive alone to work
60.8%
−26.5 ptssince 2009
from 87.4% in 2009
US average: 75.1%
No vehicle available
5.4%
+2.3 ptssince 2009
from 3.1% in 2009
US average: 8.4%
Section 07

Work & employment

Unemployment rate
3.0%
−0.9 ptssince 2011
from 3.9% in 2011
US average: 5.4%
Labor force participation
56.2%
−7.7 ptssince 2011
from 63.9% in 2011
US average: 63.4%
Management & professional
56.6%
−20.3 ptssince 2009
from 76.9% in 2009
US average: 39.3%
Section 08

People & community

Male
47.2%
−4.5 ptssince 2009
from 51.7% in 2009
Female
52.8%
+4.5 ptssince 2009
from 48.3% in 2009
Foreign born
16.2%
+4.4 ptssince 2009
from 11.8% in 2009
US average: 13.5%
Uninsured
2.6%
−94.0 ptssince 2013
from 96.6% in 2013
US average: 8.8%
Drill deeper

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Compare Mountainside to nearby cities

MOUNTAINSIDE VS
Westfield
Income$232,629+92%
Home value$953,400+50%
Population32,595+344%
SEE FULL COMPARISON →
MOUNTAINSIDE VS
Summit
Income$190,304+57%
Home value$994,500+56%
Population23,314+217%
SEE FULL COMPARISON →
MOUNTAINSIDE VS
New Providence
Income$161,599+33%
Home value$769,900+21%
Population14,092+92%
SEE FULL COMPARISON →
MOUNTAINSIDE VS
Fanwood
Income$195,529+61%
Home value$635,200same
Population8,035+9%
SEE FULL COMPARISON →
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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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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