Black Hawk SD ZIP Code
Black Hawk city is located in South Dakota State, Meade County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Black Hawk SD zip code by its streets and block numbers if we have some of the Black Hawk streets loaded in our website
Black Hawk Area Code is 605 and Time Zone is Mountain (GMT -07:00).
Black Hawk Zip Code - South Dakota
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Black Hawk City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Black Hawk ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Black Hawk, South Dakota.
The Black Hawk Zip Code is 57718.
If you want to send a mail to Black Hawk City, you should use the 57718 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Black Hawk 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 57718 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Black Hawk 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.