There are 10 zip codes in Grant County, South Dakota. The most populated is 57252, located in Milbank. * 2024 populations estimated based on the latest ACS 5-year data.

CSV JSON
Zip Code
Population
City
572524,669Milbank
572161,584Big Stone City
57259605Revillo
57266571Summit
57264252Stockholm
57256223Ortley
57265204Strandburg
57251191Marvin
57269179Twin Brooks
57246145Labolt

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