Dewar IA ZIP Code
Dewar city is located in Iowa State, Black Hawk County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Dewar IA zip code by its streets and block numbers if we have some of the Dewar streets loaded in our website
Dewar Area Code is 319 and Time Zone is Central (GMT -06:00).
Dewar Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Dewar City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Dewar ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Dewar, Iowa.
The Dewar Zip Code is 50623.
If you want to send a mail to Dewar City, you should use the 50623 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Dewar 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 50623 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Dewar 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.