Yes - Edison, New Jersey is generally safer than Newark, New Jersey, Edison is a suburban township with many residential neighborhoods, good schools and a strong community presence. Crime rates in Edison are usually lower especially when it comes to violent crimes. On the other hand, Newark is a much larger city and historically reported higher crime rates in some areas. While Newark also has safe neighborhoods and ongoing development, overall Edison is often viewed as a quieter and safer place to live.
Given some Data-
Edison- 158 per 100000 people violent.
Chance of violent crime about 1 in 633 residents.
Some safety ranking show Edison safer than 69% of cities in crime comparisons.
Newark- Overall crime rate around 38.6 crime per 1000 residents, which is higher than the national average.
Both violent and property crime rates are higher compared with many nearby suburbs.
So many people who work in Newark or New York actually live in Edison or other suburbs because they are not and safer.