Below is a list of Long Lake SD zip codes. For your research we have also included Long Lake Area Code, Time Zone, UTC and the local Mcpherson County FIPS Code. Each Long Lake South Dakota zip code has a center Longitude / Latitude point (the Long Lake center is -99.20580291748 / 45.856800079346). For your convenience we have also indicated if that zip code in Long Lake observes Daylight Savings time.