Compared to the other cities in Arizona and all other cities across the US, is Glendale safe? From the gauges displayed above, you will notice that Glendale is safer than 20% of other cities in the state of Arizona. In addition, Glendale is safer than 20% of cities in the entire United States. To achieve these results, all Arizona and United States cities were analyzed to determine how many locations had a lower crime rate than Glendale. By studying this data, it was possible to determine that Glendale is below average in safety when compared with other United States cities.