Belknap County, New Hampshire ZIP Codes
- ZIP records
13 - Cities represented
13 - Sum of listed ZIP population estimates
60,615
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 03246 | Laconia | 17,103 |
| 2 | 03249 | Gilford | 7,830 |
| 3 | 03220 | Belmont | 7,393 |
| 4 | 03253 | Meredith | 6,707 |
| 5 | 03225 | Center Barnstead | 3,834 |
| 6 | 03809 | Alton | 3,680 |
| 7 | 03269 | Sanbornton | 3,066 |
| 8 | 03237 | Gilmanton | 2,575 |
| 9 | 03256 | New Hampton | 2,497 |
| 10 | 03810 | Alton Bay | 2,314 |
Cities in Belknap County
- Alton
- Alton Bay
- Barnstead
- Belmont
- Center Barnstead
- Center Harbor
- Gilford
- Gilmanton
- Gilmanton Iron Works
- Laconia
- Meredith
- New Hampton
- Sanbornton
ZIP Directory
- ZIP 03218
- ZIP 03220
- ZIP 03225
- ZIP 03226
- ZIP 03237
- ZIP 03246
- ZIP 03249
- ZIP 03253
- ZIP 03256
- ZIP 03269
- ZIP 03809
- ZIP 03810
- ZIP 03837
Browse all ZIP data for New Hampshire
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.