Belknap County ZIP codes

Every ZIP code in Belknap County, New Hampshire, with the city it serves. Open any one for a free neighborhood report.

16 ZIP codes · Belknap County, NH · FIPS 33001

ZIP codes

16 in this county

03218Barnstead 03220Belmont 03225Center Barnstead 03226Center Harbor 03237Gilmanton 03246Laconia 03249Gilford 03252Lochmereunique 03253Meredith 03256New Hampton 03269Sanbornton 03289Winnisquamunique 03299Tiltonunique 03809Alton 03810Alton Bay 03837Gilmanton Iron Works

3 of these ZIP codes route mail only. A PO-box or single-recipient ZIP has no residential area behind it, so neighborhood statistics can't be computed for it — those pages say so instead of showing numbers.