I realize that this is a bit old, but some perspective on crime rates:

Boston has about half of the violent crime rate of Wichita, and there is no suburban sprawl in the city, either. The property crime rate in Boston is around 40% of Wichita.

Manchester has a violent crime rate that is around 40% of what it is in Wichita. Property crime rates are about half.

Nashua has a violent crime rate that is around 12% of what it is in Wichita, and about 22% of the property crime rate.

NH is a very safe state. Manchester is rougher than NH is as a whole, but compared to the vast majority of small cities, it's not bad at all.