Below is a list of Chesterton IN zip codes. For your research we have also included Chesterton Area Code, Time Zone, UTC and the local Porter County FIPS Code. Each Chesterton Indiana zip code has a center Longitude / Latitude point (the Chesterton center is -87.050399780273 / 41.602600097656). For your convenience we have also indicated if that zip code in Chesterton observes Daylight Savings time.