Below is a list of Slidell TX zip codes. For your research we have also included Slidell Area Code, Time Zone, UTC and the local Wise County FIPS Code. Each Slidell Texas zip code has a center Longitude / Latitude point (the Slidell center is -97.394996643066 / 33.357299804688). For your convenience we have also indicated if that zip code in Slidell observes Daylight Savings time.