Below is a list of Grantsburg WI zip codes. For your research we have also included Grantsburg Area Code, Time Zone, UTC and the local Burnett County FIPS Code. Each Grantsburg Wisconsin zip code has a center Longitude / Latitude point (the Grantsburg center is -92.684097290039 / 45.778999328613). For your convenience we have also indicated if that zip code in Grantsburg observes Daylight Savings time.