Below is a list of Weir TX zip codes. For your research we have also included Weir Area Code, Time Zone, UTC and the local Williamson County FIPS Code. Each Weir Texas zip code has a center Longitude / Latitude point (the Weir center is -97.592498779297 / 30.673799514771). For your convenience we have also indicated if that zip code in Weir observes Daylight Savings time.