| Poplar Creek | rises in N Onslow County and flows S into Little Northeast Creek. Mentioned in local records as early as 1744 as Poplar Swamp. |
| Poplar Creek | rises in N Transylvania County S of Fryingpan Gap and flows SE into South Fork Mills River. |
| Poplar Creek | rises in W Vance County and flows SW into E Granville County, where it enters Tabbs Creek. |
| Poplar Creek | rises in E Wake County and flows S into Neuse River. |
| Poplar Gap | E Haywood County between Sheep Mountain and Glade Mountain. |
| Poplar Grove | community in N Polk County. A post office operated there, 1875-1908. |
| Poplar Grove | community in NE Sampson County. |
| Poplar Hill | community in SW Anson County served by post office, 1825-1905. |
| Poplar Hollow Branch | rises in NE Swain County and flows S into Raven Fork. |
| Poplar Lick Gap | N Transylvania County on the head of Sitton Creek. |