McPherson County ZIP Codes
South Dakota, United States · 3 codes
McPherson County in South Dakota has 3 ZIP codes, from 57437 to 57457, serving 3 places.
ZIP codes in McPherson
Frequently asked questions
What is the ZIP code of McPherson?
McPherson has 3 ZIP codes, from 57437 to 57457. The table lists the places each one serves.
How many places are listed in McPherson County?
3 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.