There are 6 Post Offices in Dewey County, South Dakota, serving a population of 5,709 people in an area of 2,302 square miles. There is 1 Post Office per 951 people, and 1 Post Office per 383 square miles.
In South Dakota, Dewey County is ranked 34th of 66 counties in Post Offices per capita, and 54th of 66 counties in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Dewey County Post Offices.
US Post Office 18 South 2nd Avenue Whitehorse, SD
United States Postal Service 1 North Highway 212 Lantry, SD Mailing Service, Postal Services
United States Postal Service 801 Main Street Timber Lake, SD Mailing Service, Postal Services
United States Postal Service 18 South 2nd Avenue Whitehorse, SD Mailing Service, Postal Services
United States Postal Service 200 Main Street Isabel, SD Mailing Service, Postal Services
United States Postal Service 1 Highway 212 Ridgeview, SD Mailing Service, Postal Services