Merrimack County ZIP Codes
Merrimack County is a county of New Hampshire.
- ZIP codes
- 29
- Cities & towns
- 26
- Area codes
- 1
- Land area
- 933 sq mi
Every ZIP code in Merrimack County
| ZIP code | City |
|---|---|
| 03046 | Dunbarton |
| 03106 | Hooksett |
| 03216 | Andover |
| 03221 | Bradford |
| 03224 | Canterbury |
| 03229 | Contoocook |
| 03230 | Danbury |
| 03231 | East Andover |
| 03233 | Elkins |
| 03234 | Epsom |
| 03235 | Franklin |
| 03242 | Henniker |
| 03243 | Hill |
| 03255 | Newbury |
| 03257 | New London |
| 03260 | North Sutton |
| 03263 | Pittsfield |
| 03268 | Salisbury |
| 03272 | South Newbury |
| 03273 | South Sutton |
| 03275 | Suncook |
| 03278 | Warner |
| 03287 | Wilmot |
| 03301 | Concord |
| 03302 | Concord |
| 03303 | Concord |
| 03304 | Bow |
| 03305 | Concord |
| 03307 | Loudon |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Merrimack County codes above are listed without a column we would have to invent.
Cities and towns in Merrimack County
A further 14 places in Merrimack County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.
Area codes covering Merrimack County
Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.
Where Merrimack County's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope every ZIP code recorded in Merrimack County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated . The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.