Compared to the other cities in Iowa and cities in all other U.S. states, how safe is Glenwood, IA? From the gauges displayed above, you will notice that Glenwood, IA has been ranked safer than 16% of other cities in the state of Iowa. In addition, Glenwood, IA is safer than 22% of cities in the entire United States. To achieve these results, all Iowa and United States cities were analyzed to determine how many locations had a lower crime rate than Glenwood, IA. By studying this data, it was possible to determine that Glenwood, IA is below average in safety when compared with other United States cities.