Belknap County, New Hampshire ZIP codes
18ZIP codes
16Cities and towns
60,615People in ZIP areas
603Area code
Belknap County is in New Hampshire and the Eastern Time zone. ZIP codes don’t follow county lines exactly, so a ZIP code listed here can reach into a neighboring county.
All ZIP codes in Belknap County
| ZIP code | City | Type | Population | Median income |
|---|---|---|---|---|
| 03218 | Barnstead | Standard | 1,160 | $112,500 |
| 03220 | Belmont | Standard | 7,393 | $68,242 |
| 03225 | Center Barnstead | Standard | 3,834 | $111,660 |
| 03226 | Center Harbor | Standard | 1,005 | $107,500 |
| 03237 | Gilmanton | Standard | 2,575 | $111,359 |
| 03246 | Laconia | Standard | 17,103 | $73,241 |
| 03247 | Laconia | PO Box only | – | – |
| 03249 | Gilford | Standard | 7,830 | $116,635 |
| 03252 | Lochmere | PO Box only | – | – |
| 03253 | Meredith | Standard | 6,707 | $84,719 |
| 03256 | New Hampton | Standard | 2,497 | $87,917 |
| 03269 | Sanbornton | Standard | 3,066 | $107,083 |
| 03289 | Winnisquam | PO Box only | – | – |
| 03298 | Tilton | Unique | – | – |
| 03299 | Tilton | Unique | – | – |
| 03809 | Alton | Standard | 3,680 | $106,397 |
| 03810 | Alton Bay | Standard | 2,314 | $148,261 |
| 03837 | Gilmanton Iron Works | Standard | 1,451 | $119,712 |
Cities and towns in Belknap County
- Laconia 2 ZIPs
- Tilton 2 ZIPs
- Alton 1 ZIP
- Alton Bay 1 ZIP
- Barnstead 1 ZIP
- Belmont 1 ZIP
- Center Barnstead 1 ZIP
- Center Harbor 1 ZIP
- Gilford 1 ZIP
- Gilmanton 1 ZIP
- Gilmanton Iron Works 1 ZIP
- Lochmere 1 ZIP
- Meredith 1 ZIP
- New Hampton 1 ZIP
- Sanbornton 1 ZIP
- Winnisquam 1 ZIP
Area codes in Belknap County
Questions
- How many ZIP codes are in Belknap County, NH?
- Belknap County has 18 ZIP codes, 13 of them standard ZIP codes for street addresses.
- What cities are in Belknap County?
- Belknap County ZIP codes cover Laconia, Tilton, Alton, Alton Bay, Barnstead, Belmont, Center Barnstead and Center Harbor and 8 other places.
- What area code is Belknap County, NH?
- Belknap County uses area code 603.
- What time zone is Belknap County in?
- Belknap County is in Eastern Time.