Spearfish SD ZIP Code
Spearfish city is located in South Dakota State, Lawrence County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Spearfish SD zip code by its streets and block numbers if we have some of the Spearfish streets loaded in our website
Spearfish Area Code is 605 and Time Zone is Mountain (GMT -07:00).
Spearfish Zip Code - South Dakota
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Spearfish City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Spearfish ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Spearfish, South Dakota.
The Spearfish Zip Code is 57783, 57799.
If you want to send a mail to Spearfish City, you should use the 57783, 57799 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Spearfish ZIP code system that it called ZIP+4, often called "plus-four codes", "add-on codes", or "add ons". A ZIP+4 code uses the basic 57783, 57799 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Spearfish city block, a group of apartments, an individual high-volume receiver of mail or any other unit that could use an extra identifier to aid in efficient mail sorting and delivery in South Dakota.