Zip Code 57661 is located in Whitehorse, Dewey county in the state of South Dakota. 57661 Zip Code is spread between the coordinates of +45.098685 Latitude and -100.879214 Longitude. 57661 Zip Code is part of the 605 area code. There are 0 postal offices in zip code 57661 which we have listed below
On the below highlighted section you can find the cities which the US Post Office accepts for ZIP code 57661. Always when you mail a package or a letter, be attentive to mention the preferred or acceptable cities. Using any city in the list of unacceptable cities may result in unforseen delays.