Incorporated: 1754 |
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Origin: This territory was first settled about 1650 when it was part of Dover. It was made a separate parish in 1729, called Summersworth. In 1753, residents petitioned Governor Benning Wentworth for a separate township. The town was incorporated as Somersworth in 1754. In 1849, the town was divided nearly in half when the southern portion was incorporated as Rollinsford. Somersworth was incorporated as a city in 1893. Situated on the Salmon River, Somersworth has been home to many gristmills, sawmills, and cotton and woolen making establishments. |
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Villages and Place Names: unknown |
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Population, Year of the First Census Taken: 943 residents in 1790 |
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Population Trends: Population change for Somersworth totaled 2,841 over 50 years, from 9,026 in 1970 to 11,867 in 2020. The largest decennial percent change was a 15 percent increase from 1970 to 1980. The city's population increased by one percent from 2010 to 2020. |
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Population Density and Land Area: 2023 (US Census Bureau): 1,244.1 persons per square mile of land area. Somersworth contains 9.8 square miles of land area and 0.2 square miles of inland water area. |
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