Below is a list of Dayville OR zip codes. For your research we have also included Dayville Area Code, Time Zone, UTC and the local Grant County FIPS Code. Each Dayville Oregon zip code has a center Longitude / Latitude point (the Dayville center is -119.53399658203 / 44.466598510742). For your convenience we have also indicated if that zip code in Dayville observes Daylight Savings time.