Mountainside, NJ Crime Statistics For 2025

Demographics | Crime | Cost Of Living
Updated: 2025-10-24

Crime Rate In Mountainside, NJ Summary

Crime in Mountainside research summary. HomeSnacks has been using Saturday Night Science to report crime data in Mountainside over the past eight years using the FBI Crime Explorer. Based on the most recently available data released on October 17, 2023, we found the following about crime in Mountainside:

  • There were 25 total crimes committed in Mountainside in the last reporting year.
  • On a rate basis, there were 354.5 total crimes per 100K people in Mountainside.
  • The overall crime rate in Mountainside is -83.27% below the national average.
  • Mountainside ranks #60 safest out of 457 cities in New Jersey.
  • Mountainside ranks #1,497 safest out of 9,896 cities in the United States.

Because the crime rate is so low in America, we use "per 100,000 people" to make the number a bit easier to compare across locations visually. It's mathematically the same as per capita comparisons and isn't meant to convey that 100,000+ people live in a location.

Additional research about crime in New Jersey

Mountainside Vs New Jersey And National Crime Rates

According to the most recent data from the FBI, the total crime rate in Mountainside is 354.5 per 100,000 people. That's -83.27% lower than the national rate of 2,119.2 per 100,000 people and -78.45% lower than the New Jersey total crime rate of 1,645.1 per 100,000 people.

Statistic Count
Raw
Mountainside
/ 100k People
New Jersey
/ 100k People
National
/ 100k People
Total Crimes Per 100K 25 354.5 1,645.1 2,119.2
Murder 0 0.0 2.3 5.0
Robbery 1 14.2 49.3 61.0
Aggravated Assault 0 0.0 148.8 256.0
Violent Crime 1 14.2 217.7 359.0
Burglary 5 70.9 145.3 229.0
Larceny 16 226.9 1,119.4 1,272.0
Car Theft 3 42.5 162.6 259.0
Property Crime 24 340.3 1,427.3 1,760.0

Mountainside Crime Compared To New Jersey Averages

Each category of crime indexed to the worst per capita in New Jersey.
Data Source -- FBI UCR 2024.

Violent Crime Rates In Mountainside

1
Violent Crimes
14.2
Violent Crimes / 100k People
-96.05%
Below The National Average
  • There were 1 violent crimes in Mountainside in the last reporting year.
  • The violent crime rate in Mountainside is 14.2 per 100,000 people.
  • You have a 1 in 7,053.0 chance of being the victim of a violent crime in Mountainside each year. That compares to a 1 in 459.3 chance statewide.
  • That's -96.05% lower than the national rate of 359.0 per 100,000 people.
  • And -93.49% lower than the New Jersey violent crime rate of 217.7 per 100,000 people.

Property Crime Rates In Mountainside

24
Property Crimes
340.3
Property Crimes / 100k People
-80.67%
Below The National Average
  • There were 24 property crimes in Mountainside in the last reporting year.
  • The property crime rate in Mountainside is 340.3 per 100,000 people.
  • You have a 1 in 293.9 chance of being the victim of a property crime in Mountainside each year. That compares to a 1 in 0.0 chance nationally.
  • That's -80.67% lower than the national rate of 1,760.0 per 100,000 people.
  • And -76.16% lower than the New Jersey property crime rate of 1,427.3 per 100,000 people.

Crime In Cities Around Mountainside

City Population Count
Raw
Total Crime
/ 100k People
Property Crime
/ 100k People
Violent Crime
/ 100k People
Westfield, NJ 31,111 178 572.1 556.1 16.1
Summit, NJ 22,731 179 787.5 730.3 57.2
Florham Park, NJ 14,942 90 602.3 575.6 26.8
Roselle Park, NJ 14,212 106 745.8 710.7 35.2
New Providence, NJ 13,717 41 298.9 255.2 43.7
Hasbrouck Heights, NJ 12,272 61 497.1 472.6 24.4
Lincoln Park, NJ 11,211 70 624.4 606.5 17.8
Chatham, NJ 9,505 50 526.0 505.0 21.0
Boonton, NJ 9,023 82 908.8 886.6 22.2
Kenilworth, NJ 8,394 73 869.7 845.8 23.8

Mountainside SnackAbility

10
/10
Overall SnackAbility
Jobs
9/10
Housing
10
Affordability
3
Diversity
8
Safety
9
Amenities
8
Education
9
Commute
3
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