Defiance IA ZIP Code
Defiance city is located in Iowa State, Shelby County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Defiance IA zip code by its streets and block numbers if we have some of the Defiance streets loaded in our website
Defiance Area Code is 712 and Time Zone is Central (GMT -06:00).
Defiance Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Defiance City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Defiance ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Defiance, Iowa.
The Defiance Zip Code is 51527.
If you want to send a mail to Defiance City, you should use the 51527 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Defiance 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 51527 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Defiance 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.