Walnut KS ZIP Code
Walnut city is located in Kansas State, Crawford County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Walnut KS zip code by its streets and block numbers if we have some of the Walnut streets loaded in our website
Walnut Area Code is 620 and Time Zone is Central (GMT -06:00).
Walnut Zip Code - Kansas
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Walnut City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Walnut ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Walnut, Kansas.
The Walnut Zip Code is 66780.
If you want to send a mail to Walnut City, you should use the 66780 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Walnut 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 66780 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Walnut 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 Kansas.