Sioux City IA ZIP Code

Sioux City city is located in Iowa State, Woodbury County and has a unique zip code assigned by the US Postal Service Office.


You can search for the Sioux City IA zip code by its streets and block numbers if we have some of the Sioux City streets loaded in our website

Sioux City Area Code is 712 and Time Zone is Central (GMT -06:00).



Sioux City Zip Code - Iowa

The US ZIP Code basic format consists of five decimal numerical digits assigned to the Sioux City City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Sioux City ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Sioux City, Iowa.

The Sioux City Zip Code is 51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111.



If you want to send a mail to Sioux City City, you should use the 51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Sioux City 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 51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Sioux City 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.


Sioux City, Iowa - MAP



What is the Sioux City Zip Code?

The Sioux City Zip Code in Iowa is 51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111.


ZIP Plus 4 Sioux City - US Streets Zip Codes

By pressing keys ctrol + F you can search Sioux City zip codes by its streets, highways, and know the ZIP+4 US ZIP Code


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Search Sioux City Zip Code

What is the zip code for Sioux City IA?

51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111

Sioux City, Iowa - US Zip Code



Sioux City ZIP Code Lookup

51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111 Zip Code File:
Zip Code: 51101, 51102, 51103, 51104, 51105, 51106, 51108, 51109, 51111,
City: Sioux City
Sioux City Area Code: 712
Sioux City, IA - Time Zone: Central (GMT -06:00)
County: Woodbury
City Alias: Wickham Spur, Sioux City, Sioux City, Sioux City, Sioux City, Sioux City, Sioux City, Sioux City, James, Sioux City, Blvd Station, Sioux City
State: Iowa
State Abb: IA



Iowa Zip+4 - Nearby Sioux City Cities

Cities near Sioux City in Iowa
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View more Iowa zip codes



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