There are 3 Post Offices in Sanborn County, South Dakota, serving a population of 2,366 people in an area of 570 square miles. There is 1 Post Office per 788 people, and 1 Post Office per 189 square miles.
In South Dakota, Sanborn County is ranked 24th of 66 counties in Post Offices per capita, and 34th of 66 counties in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Sanborn County Post Offices.
United States Postal Service 202 South Dumont Avenue Woonsocket, SD Mailing Service, Postal Services
United States Postal Service 119 East Main Street Letcher, SD Mailing Service, Postal Services
United States Postal Service 225 North Main Street Artesian, SD Mailing Service, Postal Services