Otter Tail County ZIP Codes
Minnesota, United States · 20 codes
Otter Tail County in Minnesota has 20 ZIP codes, from 56324 to 56588, serving 20 places.
ZIP codes in Otter Tail
Frequently asked questions
What is the ZIP code of Otter Tail?
Otter Tail has 20 ZIP codes, from 56324 to 56588. The table lists the places each one serves.
How many places are listed in Otter Tail County?
20 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.