New Canton is an unincorporated town in northeastern Buckingham County, Virginia, United States. It lies along U.S. Route 15 below the James River, northeast of the county seat of Buckingham. Although it is unincorporated, it has a post office, with the ZIP code of 23123.In November, 1793, the Virginia General Assembly decreed that a town to be named "New Canton" was to be established in Buckingham County on the James River, near the mouth of Bear Garden Creek. The twenty five acres of land were located on the bluff above Cannon's Ferry, which had been in operation for many years. This land was to be laid out into lots of one half acre each, with "convenient cross streets running throughout". The main street and one angled cross street were the existing roads that served the ferry. The land was part of an original colonial land grant made to William Cannon on March 1, 1743.