Colby WI ZIP Code

Colby city is located in Wisconsin State, Clark County and has a unique zip code assigned by the US Postal Service Office.

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

Colby Area Code is 715 and Time Zone is Central (GMT -06:00).

Colby Zip Code - Wisconsin

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

The Colby Zip Code is 54421.

If you want to send a mail to Colby City, you should use the 54421 Zip Code.

In 1983, the U.S. Postal Service introduced an expanded Colby 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 54421 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Colby 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 Wisconsin.

Colby, Wisconsin - MAP

What is the Colby Zip Code?

The Colby Zip Code in Wisconsin is 54421.

ZIP Plus 4 Colby - US Streets Zip Codes

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Colby, Wisconsin -

Colby ZIP Code Lookup

54421 Zip Code File:
Zip Code: 54421,
City: Colby
Colby Area Code: 715
Colby, WI - Time Zone: Central (GMT -06:00)
County: Clark
City Alias: Colby
State: Wisconsin
State Abb: WI

Wisconsin Zip+4 - Nearby Colby Cities

Cities near Colby in Wisconsin
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