Below is a list of Otter Tail County MN zip codes. For your research we have also included Otter Tail County Area Code, Time Zone, UTC and the local County FIPS Code. Each Otter Tail County Minnesota zip code has a center Longitude / Latitude point (the Otter Tail County center is -95.685501098633 / 46.411098480225). For your convenience we have also indicated if that zip code in Otter Tail County observes Daylight Savings time.