There are 2 Post Offices in Spearfish, South Dakota, serving a population of 11,300 people in an area of 17 square miles. There is 1 Post Office per 5,650 people, and 1 Post Office per 8 square miles.
In South Dakota, Spearfish is ranked 312nd of 463 cities in Post Offices per capita, and 313rd of 463 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Spearfish Post Offices.
United States Government 2014 North Main Street Spearfish, SD
United States Postal Service 120 Yankee Street Spearfish, SD Mailing Service, Postal Services