36 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 3038 | Derry | 34,622 |
| 3079 | Salem | 30,646 |
| 3053 | Londonderry | 25,930 |
| 3801 | Portsmouth | 23,231 |
| 3833 | Exeter | 22,676 |
| 3842 | Hampton | 16,180 |
| 3087 | Windham | 15,922 |
| 3077 | Raymond | 10,837 |
| 3857 | Newmarket | 9,431 |
| 3874 | Seabrook | 8,613 |
| 3865 | Plaistow | 7,850 |
| 3885 | Stratham | 7,742 |
| 3042 | Epping | 7,300 |
| 3811 | Atkinson | 7,222 |
| 3873 | Sandown | 6,590 |
| 3841 | Hampstead | 6,282 |
| 3848 | Kingston | 6,261 |
| 3032 | Auburn | 6,031 |
| 3290 | Nottingham | 5,304 |
| 3036 | Chester | 5,263 |
| 3870 | Rye | 5,092 |
| 3858 | Newton | 4,825 |
| 3037 | Deerfield | 4,791 |
| 3044 | Fremont | 4,783 |
| 3261 | Northwood | 4,653 |
| 3862 | North Hampton | 4,563 |
| 3819 | Danville | 4,325 |
| 3034 | Candia | 4,197 |
| 3840 | Greenland | 4,070 |
| 3827 | East Kingston | 3,213 |
| 3826 | East Hampstead | 2,944 |
| 3844 | Hampton Falls | 2,357 |
| 3856 | Newfields | 2,010 |
| 3854 | New Castle | 948 |
| 3871 | Rye Beach | 459 |
| 3291 | West Nottingham | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 36 ZCTAs in Rockingham County, New Hampshire (US Census).