Sibley IA ZIP Code
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Sibley city is located in Iowa State, Osceola County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Sibley IA zip code by its streets and block numbers if we have some of the Sibley streets loaded in our website
Sibley Area Code is 712 and Time Zone is Central (GMT -06:00).
Sibley Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Sibley City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Sibley ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Sibley, Iowa.
The Sibley Zip Code is 51249.
If you want to send a mail to Sibley City, you should use the 51249 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Sibley 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 51249 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Sibley 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 Iowa.