Compared to the other cities in Massachusetts and cities in all other U.S. states, how safe is Boston, MA? From the gauges displayed above, you will notice that Boston, MA has been ranked safer than 10% of other cities in the state of Massachusetts. In addition, Boston, MA is safer than 14% of cities in the entire United States. To achieve these results, all Massachusetts and United States cities were analyzed to determine how many locations had a lower crime rate than Boston, MA. By studying this data, it was possible to determine that Boston, MA is below average in safety when compared with other United States cities.