| Singecat Ridge | NW McDowell County near the head of Buck Creek. |
| Singletary Lake | E Bladen County, a 572-acre natural lake with a max. depth of 11 ft., 8 in. Named for Richard Singletary, who received a grant of land in Bladen County in 1729. Part of Singletary Lake State Park. Fishing, boating, swimming, and camping. See also Carolina Bays. |
| Singleton Swamp | rises in NW Beaufort County and flows NW and W into Old Ford Swamp. |
| Singletons Bay | loam-filled bay in SE Hoke County between Big Marsh Swamp and Little Marsh Swamp. |
| Sings Creek | rises in W Moore County and flows NE into Wet Creek. |
| Sinking Creek | rises in NW Haywood County and flows NE into Big Creek. |
| Sioux | community in N Yancey County on Big Creek. Served by post office, 1887-1955. Alt. 2,109. |
| Sippanaw | See Rudd. |
| Sippihaw | community in S Wake County served by post office, 1900-1902. |
| Sites | community in S Bladen County in Carvers Creek Township served by post office, 1902-17. |