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Rockingham County New Hampshire Last Updated: 06/21/2025 |
| Rockingham County is a county in the U.S. state of New Hampshire. As of the 2020 census, the population was 314,176, making it New Hampshire's second-most populous county. Rockingham County includes one city, Portsmouth, and 36 towns. The county seat is Brentwood. | |
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New Hampshire Place » City New Hampshire is a state located in the New England region of the northeastern United States. New Hampshire is known for its beautiful landscapes, including the White Mountains, Lakes Region, and a picturesque coastline along the Atlantic Ocean. It had a population of 1,377,529 residents as of the 2020 census. 178 views 💖 1 👍 0The United States |