Rancho Cucamonga CA ZIP Code
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Rancho Cucamonga city is located in California State, San Bernardino County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Rancho Cucamonga CA zip code by its streets and block numbers if we have some of the Rancho Cucamonga streets loaded in our website
Rancho Cucamonga Area Code is 909 and Time Zone is Pacific (GMT -08:00).
Rancho Cucamonga Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Rancho Cucamonga City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Rancho Cucamonga ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Rancho Cucamonga, California.
The Rancho Cucamonga Zip Code is 91701, 91729, 91730, 91737, 91739.
If you want to send a mail to Rancho Cucamonga City, you should use the 91701, 91729, 91730, 91737, 91739 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Rancho Cucamonga 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 91701, 91729, 91730, 91737, 91739 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Rancho Cucamonga 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.