Merrimack is a town in Hillsborough County, New Hampshire, United States. The population was 26,632 as of the 2020 census.
First Church of Merrimack
The Souhegan River in Wildcat Falls Conservation Area
Merrimack High School
Hillsborough County, New Hampshire
Hillsborough County is the most populous county in the U.S. state of New Hampshire. As of the 2020 census, the population was 422,937, almost one-third the population of the entire state. Its county seats are Manchester and Nashua, the state's two biggest cities. Hillsborough is northern New England's most populous county as well as its most densely populated.
Manchester skyline