Below is a list of Williamstown WV zip codes. For your research we have also included Williamstown Area Code, Time Zone, UTC and the local Wood County FIPS Code. Each Williamstown West Virginia zip code has a center Longitude / Latitude point (the Williamstown center is -81.448501586914 / 39.39879989624). For your convenience we have also indicated if that zip code in Williamstown observes Daylight Savings time.