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is a town in Lincoln County, Maine, United States. The population was 2,388 at the 2000 census.
Jefferson is a town in Lincoln County, incorporated on February 24, 1807, when Thomas Jefferson was President, from Ballstown Plantation. During the 19th Century, it set off land to Alna and Newcastle, and annexed land from Patricktown, later incorporated as Somerville.
Abandoned granite quarries and clay banks where bricks were made suggest the early economic activities of the area.