Below is a list of Gunpowder MD zip codes. For your research we have also included Gunpowder Area Code, Time Zone, UTC and the local Harford County FIPS Code. Each Gunpowder Maryland zip code has a center Longitude / Latitude point (the Gunpowder center is -76.781799316406 / 39.665298461914). For your convenience we have also indicated if that zip code in Gunpowder observes Daylight Savings time.