Derry is located in Rockingham County, NH. The population is , making Derry the largest city in Rockingham County and the 7th largest city in the state of New Hampshire.
There are 11 public schools in Derry with an average Homefacts rating of B-. The total crime rate for Derry is low , and there are 33 registered sex offenders residing in the city. Unemployment in Derry is low and the median home sales price is $0. Detailed and up-to-date Derry property reports are available for any property address.