Oacoma SD ZIP Code
Oacoma city is located in South Dakota State, Lyman County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Oacoma SD zip code by its streets and block numbers if we have some of the Oacoma streets loaded in our website
Oacoma Area Code is 605 and Time Zone is Central (GMT -06:00).
Oacoma Zip Code - South Dakota
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Oacoma City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Oacoma ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Oacoma, South Dakota.
The Oacoma Zip Code is 57365.
If you want to send a mail to Oacoma City, you should use the 57365 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Oacoma 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 57365 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Oacoma 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.