Compared to the other cities in New Jersey and cities in all other U.S. states, how safe is Newton, NJ? From the gauges displayed above, you will notice that Newton, NJ has been ranked safer than 39% of other cities in the state of New Jersey. In addition, Newton, NJ is safer than 65% of cities in the entire United States. To achieve these results, all New Jersey and United States cities were analyzed to determine how many locations had a lower crime rate than Newton, NJ. By studying this data, it was possible to determine that Newton, NJ is above average in safety when compared with other United States cities.