Colo IA ZIP Code
Colo city is located in Iowa State, Story County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Colo IA zip code by its streets and block numbers if we have some of the Colo streets loaded in our website
Colo Area Code is 641 and Time Zone is Central (GMT -06:00).
Colo Zip Code - Iowa
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Colo City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Colo ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Colo, Iowa.
If you want to send a mail to Colo City, you should use the 50056 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Colo 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 50056 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Colo 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.
Colo, Iowa - MAP
ZIP Plus 4 Colo - US Streets Zip Codes
By pressing keys ctrol + F you can search Colo zip codes by its streets, highways, and know the ZIP+4 US ZIP Code
Colo ZIP Code Lookup
Iowa Zip+4 - Nearby Colo Cities
Cities near Colo in Iowa