Henniker is located in Merrimack County, NH. The population is , making Henniker the 7th largest city in Merrimack County.
There are 1 public schools in Henniker with an average Homefacts rating of B. The total crime rate for Henniker is low , and there are 7 registered sex offenders residing in the city. Unemployment in Henniker is low and the median home sales price is $0. Detailed and up-to-date Henniker property reports are available for any property address.
Cities near Henniker include Hillsborough, Deering and Hopkinton.