Below is a list of Texline TX zip codes. For your research we have also included Texline Area Code, Time Zone, UTC and the local Dallam County FIPS Code. Each Texline Texas zip code has a center Longitude / Latitude point (the Texline center is -103.0240020752 / 36.377899169922). For your convenience we have also indicated if that zip code in Texline observes Daylight Savings time.