Chester ID ZIP Code
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Chester city is located in Idaho State, Fremont County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Chester ID zip code by its streets and block numbers if we have some of the Chester streets loaded in our website
Chester Area Code is 208 and Time Zone is Mountain (GMT -07:00).
Chester Zip Code - Idaho
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Chester City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Chester ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Chester, Idaho.
The Chester Zip Code is 83421.
If you want to send a mail to Chester City, you should use the 83421 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Chester 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 83421 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Chester 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 Idaho.