Below is a list of McCook Lake SD zip codes. For your research we have also included McCook Lake Area Code, Time Zone, UTC and the local Union County FIPS Code. Each McCook Lake South Dakota zip code has a center Longitude / Latitude point (the McCook Lake center is -96.503303527832 / 42.528099060059). For your convenience we have also indicated if that zip code in McCook Lake observes Daylight Savings time.