County Merrimack is located in the state of New Hampshire. Merrimack is spread between the coordinates of +43.1032764 Latitude and -71.60748199 Longitude. Merrimack has 31 zip codes, 30 cities, 1 area code and 32 post offices.
Below you will find more info about Merrimack and also zip codes, cities, area codes and the post offices that belong to this county.