36 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 3038 | Derry | 34,506 |
| 3079 | Salem | 30,350 |
| 3053 | Londonderry | 25,780 |
| 3801 | Portsmouth | 23,102 |
| 3833 | Exeter | 22,543 |
| 3842 | Hampton | 16,123 |
| 3087 | Windham | 15,764 |
| 3077 | Raymond | 10,773 |
| 3857 | Newmarket | 9,400 |
| 3874 | Seabrook | 8,614 |
| 3865 | Plaistow | 7,843 |
| 3885 | Stratham | 7,715 |
| 3042 | Epping | 7,180 |
| 3811 | Atkinson | 7,154 |
| 3873 | Sandown | 6,536 |
| 3841 | Hampstead | 6,227 |
| 3848 | Kingston | 6,226 |
| 3032 | Auburn | 5,949 |
| 3036 | Chester | 5,237 |
| 3870 | Rye | 5,170 |
| 3290 | Nottingham | 5,119 |
| 3858 | Newton | 4,808 |
| 3044 | Fremont | 4,738 |
| 3037 | Deerfield | 4,700 |
| 3261 | Northwood | 4,632 |
| 3862 | North Hampton | 4,552 |
| 3819 | Danville | 4,234 |
| 3034 | Candia | 4,202 |
| 3840 | Greenland | 4,052 |
| 3827 | East Kingston | 3,164 |
| 3826 | East Hampstead | 3,022 |
| 3844 | Hampton Falls | 2,375 |
| 3856 | Newfields | 1,985 |
| 3854 | New Castle | 904 |
| 3871 | Rye Beach | 356 |
| 3291 | West Nottingham | 134 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 36 ZCTAs in Rockingham County, New Hampshire (US Census).