Walworth County ZIP Codes
South Dakota, United States · 5 codes
Walworth County in South Dakota has 5 ZIP codes, from 57420 to 57631, serving 5 places.
ZIP codes in Walworth
Frequently asked questions
What is the ZIP code of Walworth?
Walworth has 5 ZIP codes, from 57420 to 57631. The table lists the places each one serves.
How many places are listed in Walworth County?
5 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.