Below is a list of Carlsbad TX zip codes. For your research we have also included Carlsbad Area Code, Time Zone, UTC and the local Tom Green County FIPS Code. Each Carlsbad Texas zip code has a center Longitude / Latitude point (the Carlsbad center is -100.64099884033 / 31.603000640869). For your convenience we have also indicated if that zip code in Carlsbad observes Daylight Savings time.