94574 ZIP Code
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94574 is a zip code assigned by the US Postal Service Office for a US City.
You can search for the 94574 zip code by its streets and block numbers if we have some of the streets loaded in our website
You should use 94574 Zip Code if you want to send mail to a certain US City.
94574 Zip Code - US ZIP Codes
The US ZIP Code basic format consists of five decimal numerical digits assigned like the 94574 Zip Code. An extended ZIP+4 code, introduced in the 1980s, includes the five digits 94574 ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code.
94574 Zip Code belongs to Saint Helena, CA - US. 94574 Zip code is located at Napa County and is related to this cities: Saint Helena
94574 Zip Code Area Code is 707 and 94574 Zip Code Time Zone is Pacific (GMT -08:00).
In 1983, the U.S. Postal Service introduced an expanded Saint Helena 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 94574 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Saint Helena 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 California.