Harrold SD ZIP Code
Harrold city is located in South Dakota State, Hughes County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Harrold SD zip code by its streets and block numbers if we have some of the Harrold streets loaded in our website
Harrold Area Code is 605 and Time Zone is Central (GMT -06:00).
Harrold Zip Code - South Dakota
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Harrold City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Harrold ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Harrold, South Dakota.
The Harrold Zip Code is 57536.
If you want to send a mail to Harrold City, you should use the 57536 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Harrold 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 57536 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Harrold 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.