Below is a list of Riddle OR zip codes. For your research we have also included Riddle Area Code, Time Zone, UTC and the local Douglas County FIPS Code. Each Riddle Oregon zip code has a center Longitude / Latitude point (the Riddle center is -123.36699676514 / 42.951801300049). For your convenience we have also indicated if that zip code in Riddle observes Daylight Savings time.