Below is a list of Cathlamet WA zip codes. For your research we have also included Cathlamet Area Code, Time Zone, UTC and the local Wahkiakum County FIPS Code. Each Cathlamet Washington zip code has a center Longitude / Latitude point (the Cathlamet center is -123.38200378418 / 46.2047996521). For your convenience we have also indicated if that zip code in Cathlamet observes Daylight Savings time.