There are 4 zip codes in Faulk County, South Dakota. The most populated is 57438, located in Faulkton. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
574381,034Faulkton
57473288Seneca
57435282Cresbard
57466190Onaka

Zip Codes in Faulk County, South Dakota by Population (2024)