There are 131 Plumbing Services in Merrimack County, New Hampshire, serving a population of 147,958 people in an area of 934 square miles. There is 1 Plumbing Service per 1,129 people, and 1 Plumbing Service per 7 square miles.
In New Hampshire, Merrimack County is ranked 3rd of 10 counties in Plumbing Services per capita, and 5th of 10 counties in Plumbing Services per square mile.