Below is a list of Dumfries VA zip codes. For your research we have also included Dumfries Area Code, Time Zone, UTC and the local Prince William County FIPS Code. Each Dumfries Virginia zip code has a center Longitude / Latitude point (the Dumfries center is -77.324501037598 / 38.566101074219). For your convenience we have also indicated if that zip code in Dumfries observes Daylight Savings time.