Boulder WY ZIP Code
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Boulder city is located in Wyoming State, Sublette County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Boulder WY zip code by its streets and block numbers if we have some of the Boulder streets loaded in our website
Boulder Area Code is 307 and Time Zone is Mountain (GMT -07:00).
Boulder Zip Code - Wyoming
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Boulder City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Boulder ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Boulder, Wyoming.
The Boulder Zip Code is 82923.
If you want to send a mail to Boulder City, you should use the 82923 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Boulder 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 82923 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Boulder 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 Wyoming.