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Shirley is a town in Piscataquis County, Maine, United States. The town was named after Shirley, Massachusetts. The population was 233 at the 2010 census.
BOSTON - Massachusetts is the 15th most populous state in the U.S., hitting a population of 6,794,422 persons as of July 1, according to U.S. Census Bureau estimates. That's a steady gain of 229,386 people since 2010, according to the Bureau's figures. Between 2014 and 2015, the state saw an increase of 39,298 people.