Below is a list of Grand Isle County VT zip codes. For your research we have also included Grand Isle County Area Code, Time Zone, UTC and the local County FIPS Code. Each Grand Isle County Vermont zip code has a center Longitude / Latitude point (the Grand Isle County center is -73.289398193359 / 44.853698730469). For your convenience we have also indicated if that zip code in Grand Isle County observes Daylight Savings time.