De Kalb MO ZIP Code
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De Kalb city is located in Missouri State, Buchanan County and has a unique zip code assigned by the US Postal Service Office.
You can search for the De Kalb MO zip code by its streets and block numbers if we have some of the De Kalb streets loaded in our website
De Kalb Area Code is 816 and Time Zone is Central (GMT -06:00).
De Kalb Zip Code - Missouri
The US ZIP Code basic format consists of five decimal numerical digits assigned to the De Kalb City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the De Kalb ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in De Kalb, Missouri.
The De Kalb Zip Code is 64440.
If you want to send a mail to De Kalb City, you should use the 64440 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded De Kalb 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 64440 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a De Kalb 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 Missouri.