Below is a list of Freeport KS zip codes. For your research we have also included Freeport Area Code, Time Zone, UTC and the local Harper County FIPS Code. Each Freeport Kansas zip code has a center Longitude / Latitude point (the Freeport center is -97.853103637695 / 37.198799133301). For your convenience we have also indicated if that zip code in Freeport observes Daylight Savings time.