Sister Bay WI ZIP Code
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Sister Bay city is located in Wisconsin State, Door County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Sister Bay WI zip code by its streets and block numbers if we have some of the Sister Bay streets loaded in our website
Sister Bay Area Code is 920 and Time Zone is Central (GMT -06:00).
Sister Bay Zip Code - Wisconsin
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Sister Bay City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Sister Bay ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Sister Bay, Wisconsin.
The Sister Bay Zip Code is 54234.
If you want to send a mail to Sister Bay City, you should use the 54234 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Sister Bay 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 54234 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Sister Bay 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.