Below is a list of Gilmanton NH zip codes. For your research we have also included Gilmanton Area Code, Time Zone, UTC and the local Belknap County FIPS Code. Each Gilmanton New Hampshire zip code has a center Longitude / Latitude point (the Gilmanton center is -71.413299560547 / 43.424098968506). For your convenience we have also indicated if that zip code in Gilmanton observes Daylight Savings time.