Carroll IA ZIP Code
Carroll city is located in Iowa State, Carroll County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Carroll IA zip code by its streets and block numbers if we have some of the Carroll streets loaded in our website
Carroll Area Code is 712 and Time Zone is Central (GMT -06:00).
Carroll Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Carroll City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Carroll ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Carroll, Iowa.
The Carroll Zip Code is 51401.
If you want to send a mail to Carroll City, you should use the 51401 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Carroll 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 51401 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Carroll 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.