Below is a list of South Union KY zip codes. For your research we have also included South Union Area Code, Time Zone, UTC and the local Logan County FIPS Code. Each South Union Kentucky zip code has a center Longitude / Latitude point (the South Union center is -86.656402587891 / 36.876399993896). For your convenience we have also indicated if that zip code in South Union observes Daylight Savings time.