🇺🇸 Rockingham County, United States

Rockingham County is located in the state of New Hampshire, United States. As of 2019, the population of the county was estimated to be around 307,000. Portsmouth, a city in Rockingham County, is a major seaport with a deepwater harbor and is of great interest to seafarers, shipowners, and crewing companies. The city is known for its shipyards, which are involved in shipbuilding and repairing, making it an important hub for maritime activities in the region.