Below is a list of Astoria SD zip codes. For your research we have also included Astoria Area Code, Time Zone, UTC and the local Deuel County FIPS Code. Each Astoria South Dakota zip code has a center Longitude / Latitude point (the Astoria center is -96.546897888184 / 44.558300018311). For your convenience we have also indicated if that zip code in Astoria observes Daylight Savings time.