Below is a list of Gilmanton Iron Works NH zip codes. For your research we have also included Gilmanton Iron Works Area Code, Time Zone, UTC and the local Belknap County FIPS Code. Each Gilmanton Iron Works New Hampshire zip code has a center Longitude / Latitude point (the Gilmanton Iron Works center is -71.29940032959 / 43.431198120117). For your convenience we have also indicated if that zip code in Gilmanton Iron Works observes Daylight Savings time.