Below is a list of Salkum WA zip codes. For your research we have also included Salkum Area Code, Time Zone, UTC and the local Lewis County FIPS Code. Each Salkum Washington zip code has a center Longitude / Latitude point (the Salkum center is -122.62599945068 / 46.53150177002). For your convenience we have also indicated if that zip code in Salkum observes Daylight Savings time.