Compared to the other cities in Wisconsin and cities in all other U.S. states, how safe is Merrill, WI? From the gauges displayed above, you will notice that Merrill, WI has been ranked safer than 12% of other cities in the state of Wisconsin. In addition, Merrill, WI is safer than 33% of cities in the entire United States. To achieve these results, all Wisconsin and United States cities were analyzed to determine how many locations had a lower crime rate than Merrill, WI. By studying this data, it was possible to determine that Merrill, WI is below average in safety when compared with other United States cities.