5 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 27549 | Louisburg | 25,826 |
| 27596 | Youngsville | 19,574 |
| 27525 | Franklinton | 16,485 |
| 27816 | Castalia | 2,964 |
| 27508 | Bunn | 2,448 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 5 ZCTAs in Franklin County, North Carolina (US Census).