Clay County ZIP Codes
South Dakota, United States · 4 codes
Clay County in South Dakota has 4 ZIP codes, from 57010 to 57073, serving 4 places.
ZIP codes in Clay
Frequently asked questions
What is the ZIP code of Clay?
Clay has 4 ZIP codes, from 57010 to 57073. The table lists the places each one serves.
How many places are listed in Clay County?
4 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.