Billerica, Massachusetts  Billerica is a town in Middlesex County, Massachusetts, United States. The population was 40,243 according to the 2010 census. It takes its name from the town of Billericay in Essex, England. In the early 1630s, a Praying Indian village named Shawshin was at the current site of Billerica, commonly spelled Shawsheen today, as in the Shawsheen River. In 1638, Massachusetts Bay Governor John Winthrop and Lt. Governor Thomas Dudley were granted land along the Concord River in the area, and roughly a dozen families from Cambridge and Charlestown Village had begun to occupy Shawshin by 1652. The settlers chose the name Billerica because some of the families originally came from the town of Billericay in Essex, England. The town was incorporated as Billerica in 1655, on the same day as neighboring Chelmsford and nearby Groton. The original plantation of Billerica was divided during the colonial period into the towns of Billerica, Bedford, Wilmington, and Tewksbury. The oldest remaining homestead in the town is the Manning Manse built in 1696, which was also the residence of William Manning (1747–1814), the author of "The Key of Liberty," a critique of Federalist policies. Other notable Revolutionary War era residents included Asa Pollard (1735–75), the first soldier killed at the Battle of Bunker Hill, and Thomas Ditson (born 1741), who was tarred and feathered by the British in 1775 while on a visit to Boston. The song "Yankee Doodle" supposedly became a term of national pride instead of an insult because of this event. The town now celebrates "Yankee Doodle Weekend" every September. According to the United States Census Bureau, the town has a total area of , of which are land and (1.90%) is water. Billerica is located north-northwest of Boston along the Northwest Expressway (Massachusetts) portion of U.S. Route 3, positioning it as the border between the Boston Metro region to the south and the Greater Lowell region to the north. The town is also situated less than 3 miles from the Massachusetts Route 128/Interstate 95 High-Technology belt to the south and less than 2 miles from the Interstate 495 (Massachusetts) outer belt highway to the north. Billerica has several small neighborhoods that form villages (or sections) of town. Those villages are Billerica Center, East Billerica, North Billerica, Nutting Lake, Pinehurst, West Billerica, River Pines, Riverdale, and South Billerica.