14 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 28054 | Gastonia | 41,707 |
| 28052 | Gastonia | 36,272 |
| 28056 | Gastonia | 36,200 |
| 28012 | Belmont | 26,556 |
| 28120 | Mount Holly | 25,805 |
| 28034 | Dallas | 18,979 |
| 28164 | Stanley | 16,874 |
| 28021 | Cherryville | 13,865 |
| 28016 | Bessemer City | 13,109 |
| 28098 | Lowell | 3,851 |
| 28032 | Cramerton | 2,869 |
| 28006 | Alexis | 1,518 |
| 28101 | McAdenville | 898 |
| 28077 | High Shoals | 258 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 14 ZCTAs in Gaston County, North Carolina (US Census).