How to use this list
Counties are sorted alphabetically. Use ZIP count and population to spot larger counties, then open a county for its ZIP roster and income/housing averages.
New Hampshire counties
10 counties · 246 ZIP codes · population 1,387,500 . Select a county to open its ZIP table and local summary.
Related pages
Also see the New Hampshire overview, cities, rankings, and congressional districts.
| County | ZIP codes | Population | Avg. income |
|---|---|---|---|
| Belknap County | 13 | 60,183 | $98,762 |
| Carroll County | 29 | 50,892 | $83,123 |
| Cheshire County | 25 | 77,660 | $87,438 |
| Coos County | 14 | 31,030 | $65,645 |
| Grafton County | 36 | 91,815 | $89,184 |
| Hillsborough County | 34 | 424,776 | $110,507 |
| Merrimack County | 28 | 159,184 | $104,436 |
| Rockingham County | 36 | 317,163 | $125,828 |
| Strafford County | 16 | 132,110 | $100,043 |
| Sullivan County | 15 | 42,687 | $86,276 |
Frequently asked questions
- How many counties are listed for New Hampshire?
- US5 currently lists 10 counties with published ZIP coverage in New Hampshire. Counts can change as geography publishes update.
- What happens when I open a county?
- Each county page shows ZIP totals, income and housing averages, and a ZIP table. From there you can open any ZIP for a full demographics dashboard.