8 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 2840 | Newport | 23,847 |
| 2871 | Portsmouth | 17,748 |
| 2842 | Middletown | 17,009 |
| 2878 | Tiverton | 16,324 |
| 2835 | Jamestown | 5,554 |
| 2837 | Little Compton | 3,622 |
| 2841 | Newport | 1,240 |
| 2872 | Prudence Island | 98 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 8 ZCTAs in Newport County, Rhode Island (US Census).