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is a town in Fairfield County, South Carolina, United States. The population was 3,599 at the 2000 census. It is the county seat of Fairfield County. Winnsboro is part of the Columbia, South Carolina Metropolitan Statistical Area.
Several years before the Revolution, Richard Winn from Virginia moved to what is now called Fairfield County. His lands covered the present site of Winnsboro, and as early as 1777 the settlement was known as "Winnsborough".
The village was laid out and chartered in 1785 upon petition of Richard Winn, John Winn and John Vanderhorst. John, Richard, and Minor Winn all served in the Revolutionary War. Richard was a General and he is said to have fought in more battles than any Whig in South Carolina. John was a Colonel. See Fairfield County, South Carolina for more.
was written about working in a cotton mill in Winnsboro; the song has been sung by Leadbelly, Pete Seeger, and other artists and was reworked by modernist composer/pianist Frederic Rzewski.
According to the United States Census Bureau, the town has a total area of 3.2 square miles (8.4 km²), all of it land.