Below is a list of National City MI zip codes. For your research we have also included National City Area Code, Time Zone, UTC and the local Iosco County FIPS Code. Each National City Michigan zip code has a center Longitude / Latitude point (the National City center is -83.722999572754 / 44.234100341797). For your convenience we have also indicated if that zip code in National City observes Daylight Savings time.