Below is a list of Iola TX zip codes. For your research we have also included Iola Area Code, Time Zone, UTC and the local Grimes County FIPS Code. Each Iola Texas zip code has a center Longitude / Latitude point (the Iola center is -96.073997497559 / 30.772499084473). For your convenience we have also indicated if that zip code in Iola observes Daylight Savings time.