Below is a list of Granite Falls WA zip codes. For your research we have also included Granite Falls Area Code, Time Zone, UTC and the local Snohomish County FIPS Code. Each Granite Falls Washington zip code has a center Longitude / Latitude point (the Granite Falls center is -121.96399688721 / 48.083499908447). For your convenience we have also indicated if that zip code in Granite Falls observes Daylight Savings time.