Below is a list of Wahkiakum County WA zip codes. For your research we have also included Wahkiakum County Area Code, Time Zone, UTC and the local County FIPS Code. Each Wahkiakum County Washington zip code has a center Longitude / Latitude point (the Wahkiakum County center is -123.5059967041 / 46.294200897217). For your convenience we have also indicated if that zip code in Wahkiakum County observes Daylight Savings time.