Portsmouth (New Hampshire) is very close to the ocean. It's basically about 3,333 feet from the Atlantic Ocean depending on where you measure to the exact coastline.
The distance from Portsmouth (New Hampshire) to the ocean is about 676 miles if you measure to the Hudson Bay.
It is also about 1,168 miles to the Gulf of Mexico.
Portsmouth (New Hampshire) is 2,271 miles to the Pacific Ocean.
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