| Zip Code | City | Population ↓ |
|---|---|---|
| 22473 | Heathsville | 5,490 |
| 22482 | Kilmarnock | 3,169 |
| 22435 | Callao | 2,638 |
| 22539 | Reedville | 1,857 |
| 22511 | Lottsburg | 967 |
| 22432 | Burgess | 158 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 6 ZCTAs in Northumberland County, Virginia (US Census).