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Millstone Borough

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Millstone is a borough in Somerset County originally known as Somerset Courthouse and was the county seat. Not to be confused with Millstone Township in Monmouth County or Millstone in Mercer County of the state. Millstone was incorporated as a borough by an act of the New Jersey Legislature on May 14, 1894, from portions of Hillsborough Township, based on the results of a referendum held that day. The borough was reincorporated on March 12, 1928. The borough was named for the Millstone River, whose name derives from an incident in which a millstone was dropped into it.

A historic district in Millstone, comprising 58 buildings, was added to the National Register of Historic Places in 1976. The borough possesses a military significance for 1700–1749, 1750–1799, 1850–1874. New Jersey Monthly Magazine ranked Millstone as its 7th best place to live in its 2008 rankings of the “Best Places To Live” in New Jersey. The borough borders Franklin Township and Hillsborough Township.

As of the 2010 United States Census, the borough’s population was 418, reflecting an increase of 8 (+2.0%) from the 410 counted in the 2000 Census, which had in turn declined by 40 (-8.9%) from the 450 counted in the 1990 Census.

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