Compared to the other cities in Massachusetts and cities in all other U.S. states, how safe is Gloucester, MA? From the gauges displayed above, you will notice that Gloucester, MA has been ranked safer than 49% of other cities in the state of Massachusetts. In addition, Gloucester, MA is safer than 59% 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 Gloucester, MA. By studying this data, it was possible to determine that Gloucester, MA is above average in safety when compared with other United States cities.