In 1800, most of the counties were formed into districts. Washington, Pinckney Ninety-Six, Camden, and the Cheraws districts vanished, and the counties they had encompassed became districts. Claremont, Clarendon, and Salem counties became Sumter District. Marion District was formed from part of Georgetown, Colleton District from part of Charleston, and Barnwell District from part of Orangeburg. Georgetown yielded Horry District in 1801 and Williamsburg District in 1804. That same year, Lexington District was formed from Orangeburg with roughly the same territory as the old county of the same name.