Little Sioux IA ZIP Code
Little Sioux city is located in Iowa State, Harrison County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Little Sioux IA zip code by its streets and block numbers if we have some of the Little Sioux streets loaded in our website
Little Sioux Area Code is 712 and Time Zone is Central (GMT -06:00).
Little Sioux Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Little Sioux City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Little Sioux ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Little Sioux, Iowa.
The Little Sioux Zip Code is 51545.
If you want to send a mail to Little Sioux City, you should use the 51545 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Little Sioux 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 51545 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Little Sioux 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.