| Jasper's Creek | See Bell Bay. |
| Jasperfield Branch | rises in SW Madison County and flows NW into Spring Creek. |
| Jawbone Branch | rises in NW Burke County and flows S into Steels Creek. |
| Jaynes Cove | central Haywood County on a tributary of Jonathans Creek. |
| Jean Guite Creek | rises on the W side of the S end of the North Banks, NE Dare County, and flows N into Currituck Sound. Also known as Martins Point Creek. |
| Jefferson | town and county seat, central Ashe County. Inc. 1803 and named for Thomas Jefferson, who was president of the United States at the time. Alt. 2,900. Produces chemicals and textiles. |
| Jefferson | town authorized to be laid out in Chatham County at Tyson's Mill on Deep River in 1796. Commissioners were appointed, but there is no evidence that the town ever developed. A warehouse was to have been erected in the town for the inspection of tobacco, beef, pork, flour, and other commodities. |
| Jefferson | a proposed town in what is now SW Cleveland County. A 1799 law, slightly changed in 1800, authorized the establishment of a town in S Rutherford County between the Broad River and South Carolina. A building for a warehouse and for the inspection of tobacco was to be erected there. Commissioners were authorized to purchase 50 acres of land and to lay out the town. As late as July 1803, the county court appointed a successor commissioner, but all plans for the town appear to have been abandoned when it was decided that the river could not be made navigable. |
| Jefferson Township | central Ashe County. |
| Jefferson Township | E central Guilford County. |