Spencer IA ZIP Code
Spencer city is located in Iowa State, Clay County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Spencer IA zip code by its streets and block numbers if we have some of the Spencer streets loaded in our website
Spencer Area Code is 712 and Time Zone is Central (GMT -06:00).
Spencer Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Spencer City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Spencer ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Spencer, Iowa.
The Spencer Zip Code is 51301.
If you want to send a mail to Spencer City, you should use the 51301 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Spencer 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 51301 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Spencer 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.