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Mountainside, NJ
Borough in Union County, New Jersey. ZIP codes: 07092.
Population
7,049
Land area
4sq mi
People per sq mi
1,764
ZIP codes
1
Mountainside and its ZIP codes
Mountainside at a glance
- Mountainside is 39% denser than New Jersey as a whole.
- Households here earn a median of $211,538 a year, about 2 times the New Jersey figure of $103,556.
- A typical owner-occupied home is valued at $810,300 (78% above New Jersey) and median rent is more than $3,500 a month.
Local data for Mountainside, NJ
Counts from official public data
Housing and community stats
Mountainside, NJ, American Community Survey 2020-2024
Median household income
$211,538
Poverty rate
3.7%
Median home value
$810,300
Median rent
$3,500+/mo
Homeownership
87.9%
Bachelor's or higher
67.3%
Median age
48.0
Average commute
36.0 min
Largest reported origins and ancestries: Italian Americans (1,417), Irish Americans (948), German Americans (930).
Economy and federal money
Jobs, pay, income and spending are for Union County. PPP loans are for Mountainside.
Unemployment rate
5.0%
Aug 2026, -1.3 pts in a year
Average annual pay
$85,755
231,428 jobs, 2025
Income per person
$85,152
BEA, 2024
Federal spending
$2.7B
FY 2026, $4,637 per person
PPP loans
$58.2M
395 loans, 4,737 jobs reported
How people get to work
Mountainside, NJ, workers 16 and older. American Community Survey 5-year estimates
- Drove alone54.2%
- Carpooled10.8%
- Public transit8.1%
- Walked1.4%
- Bicycle0.0%
- Taxi, ride-hailing, motorcycle or other0.4%
- Worked from home25.1%
Average one-way commute: 36.0 minutes for people who do not work from home.
Environment and hazard risk
Mountainside, NJ, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: strong wind
Storm events since 1996
563
Countywide, mostly thunderstorm wind
Flood insurance policies
3,566
2.9% of homes, county
July high / Jan low
86° / 25°F
50.4 inches of rain a year
Hazards, floods and storm historyCheck a flood zone2 historic places
Health statistics
Share of adults in Mountainside, NJ, CDC PLACES estimates
Obesity
22.8%
U.S. 33.3% -10.5 pts
Diabetes
8.6%
U.S. 12.1% -3.5 pts
Smoking
7.2%
U.S. 12.8% -5.6 pts
Uninsured (18-64)
6.0%
U.S. 11.1% -5.1 pts
ZIP codes in Mountainside
1 in or overlapping Mountainside. Population shown
Cities near Mountainside
| Name | Distance | Land area (sq mi) |
|---|---|---|
| WestfieldTown | 2 mi | 6.7 |
| SummitCity | 2.2 mi | 6 |
| GarwoodBorough | 2.7 mi | 0.7 |
| New ProvidenceBorough | 2.8 mi | 3.7 |
| SpringfieldCensus-designated place | 2.9 mi | 0.4 |
| FanwoodBorough | 3.1 mi | 1.3 |
| CranfordCensus-designated place | 3.2 mi | 0.3 |
| KenilworthBorough | 3.5 mi | 2.1 |
| Short HillsCensus-designated place | 4.1 mi | 5.3 |
| ChathamBorough | 4.4 mi | 2.3 |
| Connecticut FarmsCensus-designated place | 4.6 mi | 0.1 |
| VauxhallCensus-designated place | 4.7 mi | 0.6 |
| UnionCensus-designated place | 4.7 mi | 0.3 |
| WatchungBorough | 4.8 mi | 6 |
| Roselle ParkBorough | 5 mi | 1.2 |
| PlainfieldCity | 5 mi | 6 |
Frequently asked questions
- What county is Mountainside, NJ in?
- Mountainside is in Union County, New Jersey.
- What ZIP codes are in Mountainside, NJ?
- ZIP codes in or overlapping Mountainside include 07092.
- What is the population of Mountainside, NJ?
- About 7,049 people live in Mountainside, based on American Community Survey 5-year estimates.
- What cities are near Mountainside?
- Nearby places include Westfield (2 mi), Summit (2.2 mi), Garwood (2.7 mi), New Providence (2.8 mi), Springfield (2.9 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023