Below is a list of Mathis TX zip codes. For your research we have also included Mathis Area Code, Time Zone, UTC and the local San Patricio County FIPS Code. Each Mathis Texas zip code has a center Longitude / Latitude point (the Mathis center is -97.828498840332 / 28.094400405884). For your convenience we have also indicated if that zip code in Mathis observes Daylight Savings time.