Waterloo IA ZIP Code

Waterloo 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 Waterloo IA zip code by its streets and block numbers if we have some of the Waterloo streets loaded in our website

Waterloo Area Code is 319 and Time Zone is Central (GMT -06:00).



Waterloo Zip Code - Iowa

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

The Waterloo Zip Code is 50701, 50702, 50703, 50704.



If you want to send a mail to Waterloo City, you should use the 50701, 50702, 50703, 50704 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Waterloo 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 50701, 50702, 50703, 50704 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Waterloo 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.


Waterloo, Iowa - MAP



What is the Waterloo Zip Code?

The Waterloo Zip Code in Iowa is 50701, 50702, 50703, 50704.


ZIP Plus 4 Waterloo - US Streets Zip Codes

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


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Search Waterloo Zip Code

What is the zip code for Waterloo IA?

50701, 50702, 50703, 50704

Waterloo, Iowa - US Zip Code



Waterloo ZIP Code Lookup

50701, 50702, 50703, 50704 Zip Code File:
Zip Code: 50701, 50702, 50703, 50704,
City: Waterloo
Waterloo Area Code: 319
Waterloo, IA - Time Zone: Central (GMT -06:00)
County: Black Hawk
City Alias: Waterloo, Waterloo, Washburn, Waterloo, Waterloo
State: Iowa
State Abb: IA



Iowa Zip+4 - Nearby Waterloo Cities

Cities near Waterloo in Iowa
(straight line)


View more Iowa zip codes