What are the schools like in Mountainside, NJ?

Mountainside is served primarily by Mountainside School District. The district operates 1 elementary schools, 1 middle schools, and several high schools with a student-to-teacher ratio of 11.7:1.

What is the median household income in Mountainside?

The median household income in Mountainside, NJ is $162,531 according to the most recent US Census American Community Survey 5-year estimates. The unemployment rate is 3.4%.

What is the weather like in Mountainside, NJ?

Mountainside has an average high temperature of 40.2°F in January and 85.9°F in July. Annual precipitation averages 50.4 inches and annual snowfall averages 26.3 inches.

Mountainside, NJ Cost of Living, Crime & Is It a Good Place to Live? (2026)

Q: Is Mountainside, NJ affordable or expensive?

Mountainside's cost of living index is 112, where 100 represents the national average. This means Mountainside is 12% more expensive than the average US city. The median home value is $719,000 and the median rent is $3,501 per month.

Q: What is the crime rate in Mountainside, NJ?

Mountainside has a violent crime rate of 14.2 incidents per 100,000 residents and a property crime rate of 340.3 per 100,000. The national average violent crime rate is approximately 380 per 100,000.

Is Mountainside, NJ a Good Place to Live?

Mountainside is a small town of 6,991 in New Jersey, with a median household income of $162,531 and a 3.4% unemployment rate. Its cost of living index is 112 (US average = 100), which is 12% above the national average.

Strengths: Mountainside stands out for lower-than-average crime, solid school ratings (A+), a well-educated population.

Trade-offs: Potential downsides include an above-average cost of living, high home prices, longer commutes. Whether Mountainside is right for you depends on your priorities — the full breakdown is below.

All Mountainside city data on this page comes from official government sources — the US Census Bureau, FBI, NCES, BEA, and NOAA — updated annually.

Cost of Living

Index: 112.5

Mountainside's overall cost of living index is 112.5, where 100 represents the US national average. Living in Mountainside costs roughly 12% more than the average American city.

Metric	Mountainside, NJ	National Avg
Median Home Value	$719,000	$244,900
Median Monthly Rent	$3,501	$1,163
Homeownership Rate	84.4%	65.9%
Median Household Income	$162,531	$74,755

Crime & Safety

Very Safe

Mountainside's violent crime rate is 14.2 per 100,000 residents — 96% lower than the national average of ~380 per 100,000.

Violent Crime

14.2 /100k

Property Crime

340.3 /100k

Vertical marker = national average. Source: FBI UCR Program.

Schools & Education

Mountainside is served primarily by Mountainside School District. The student-to-teacher ratio is 11.7:1 (better than the national average of ~16:1).

Metric	Mountainside, NJ	National Avg
School District	Mountainside School District	—
Elementary Schools	1	—
Middle Schools	1	—
High Schools	N/A	—
Student/Teacher Ratio	11.7:1	16:1
Bachelor's Degree or Higher	64.8%	35.4%
High School Diploma or Higher	96.3%	91.1%

Weather & Climate

Mountainside sees average highs of 40.2°F in January and 85.9°F in July, with 50.4 inches of annual precipitation and 26.3 inches of snow per year.

Metric	Mountainside, NJ
Average High — January	40.2°F
Average High — July	85.9°F
Annual Precipitation	50.4"
Annual Snowfall	26.3"

Demographics

Metric	Mountainside, NJ	National Avg
Population	6,991	—
Median Age	50.1	38.9
Unemployment Rate	3.4%	3.7%
Avg Commute Time	38.5 min	26 min
White (non-Hispanic)	77.0%	59.3%
Black or African American	1.2%	13.6%
Hispanic or Latino	8.5%	18.9%
Asian	11.5%	6.3%
Under 18	24.1%	22.2%
65 and over	25.4%	16.8%

Nearby Cities

Westfield, NJ 2 mi Summit, NJ 2 mi New Providence, NJ 3 mi Garwood, NJ 3 mi Fanwood, NJ 3 mi

ZIP Codes in Mountainside

Mountainside, NJ is covered by 1 ZIP code:

07092

Mountainside vs Other Cities

Mountainside, NJ vs Westfield, NJ Mountainside, NJ vs Summit, NJ Mountainside, NJ vs New Providence, NJ Mountainside, NJ vs Garwood, NJ Mountainside, NJ vs Fanwood, NJ

Frequently Asked Questions

Is Mountainside, NJ affordable or expensive?

Mountainside's cost of living index is 112, where 100 is the national average. That puts Mountainside roughly 12% above the national average in cost. The median home price is $719,000 and median rent is $3,501/month.

What is the crime rate in Mountainside, NJ?

Mountainside's violent crime rate is 14.2 per 100,000 residents — the national average is ~380 per 100,000. Property crime is 340.3 per 100,000 (national avg ~2,100). Data from the FBI Uniform Crime Reporting Program.

What are the schools like in Mountainside?

Public schools in Mountainside are operated by Mountainside School District. The district has 1 elementary, 1 middle, and several high schools. The student-to-teacher ratio is 11.7:1. 64.8% of adults 25+ hold a bachelor's degree or higher.

Is Mountainside, NJ a good place to live?

Mountainside, NJ has a population of 6,991, a median household income of $162,531, and an unemployment rate of 3.4%. Whether it's right for you depends on your priorities — use the compare tool above to stack it against another city you're considering.

What is the weather like in Mountainside?

Mountainside averages 40.2°F in January and 85.9°F in July. Annual rainfall is 50.4 inches with about 26.3 inches of snow per year. Based on NOAA 30-year climate normals (1991–2020).

What ZIP codes are in Mountainside?

Mountainside, NJ is covered by 1 ZIP code: 07092.

What is the population of Mountainside?

The population of Mountainside, New Jersey is 6,991 with a median age of 50.1. Source: US Census ACS 5-Year Estimates.

What are the pros and cons of living in Mountainside?

Key numbers for living in Mountainside: cost of living index 112 (100 = US average), median home $719,000, median household income $162,531, crime index 9 (100 = US average, lower is safer), schools rated A+. Whether these are benefits or drawbacks depends on where you're coming from — compare Mountainside side by side with your current city to see the trade-offs.