Below is a list of Mertens TX zip codes. For your research we have also included Mertens Area Code, Time Zone, UTC and the local Hill County FIPS Code. Each Mertens Texas zip code has a center Longitude / Latitude point (the Mertens center is -96.898002624512 / 32.058101654053). For your convenience we have also indicated if that zip code in Mertens observes Daylight Savings time.