Below is a list of West Richland WA zip codes. For your research we have also included West Richland Area Code, Time Zone, UTC and the local Benton County FIPS Code. Each West Richland Washington zip code has a center Longitude / Latitude point (the West Richland center is -119.35600280762 / 46.303398132324). For your convenience we have also indicated if that zip code in West Richland observes Daylight Savings time.