Below is a list of Dunbarton NH zip codes. For your research we have also included Dunbarton Area Code, Time Zone, UTC and the local Merrimack County FIPS Code. Each Dunbarton New Hampshire zip code has a center Longitude / Latitude point (the Dunbarton center is -71.589897155762 / 43.107299804688). For your convenience we have also indicated if that zip code in Dunbarton observes Daylight Savings time.