Below is a list of Yamhill County OR zip codes. For your research we have also included Yamhill County Area Code, Time Zone, UTC and the local County FIPS Code. Each Yamhill County Oregon zip code has a center Longitude / Latitude point (the Yamhill County center is -123.19400024414 / 45.219100952148). For your convenience we have also indicated if that zip code in Yamhill County observes Daylight Savings time.