The Laconia, NH MSA has 20 ZIP codes, listed below in numerical order. Sort this list by county or by population.
| ZIP Code | Place Name | County | Type |
|---|---|---|---|
| ZIP 03218 | Barnstead | Belknap County | Standard |
| ZIP 03220 | Belmont | Belknap County | Standard |
| ZIP 03225 | Center Barnstead | Belknap County | Standard |
| ZIP 03226 | Center Harbor | Belknap County | Standard |
| ZIP 03237 | Gilmanton | Belknap County | Standard |
| ZIP 03246 | Laconia | Belknap County | Standard |
| ZIP 03247 | Laconia | Belknap County | PO Box |
| ZIP 03249 | Gilford | Belknap County | Standard |
| ZIP 03252 | Lochmere | Belknap County | PO Box |
| ZIP 03253 | Meredith | Belknap County | Standard |
| ZIP 03256 | New Hampton | Belknap County | Standard |
| ZIP 03269 | Sanbornton | Belknap County | Standard |
| ZIP 03276 | Tilton | Merrimack County | Standard |
| ZIP 03289 | Winnisquam | Belknap County | PO Box |
| ZIP 03298 | Tilton | Belknap County | Unique |
| ZIP 03299 | Tilton | Belknap County | Unique |
| ZIP 03809 | Alton | Belknap County | Standard |
| ZIP 03810 | Alton Bay | Belknap County | Standard |
| ZIP 03837 | Gilmanton Iron Works | Belknap County | Standard |
| ZIP 03855 | New Durham | Strafford County | Standard |