Monrovia CA ZIP Code
Monrovia city is located in California State, Los Angeles County and has a unique zip code assigned by the US Postal Service Office.
You can search for the Monrovia CA zip code by its streets and block numbers if we have some of the Monrovia streets loaded in our website
Monrovia Area Code is 626 and Time Zone is Pacific (GMT -08:00).
Monrovia Zip Code - California
The US ZIP Code basic format consists of five decimal numerical digits assigned to the Monrovia City. An extended ZIP+4 code, introduced in the 1980s, includes the five digits of the Monrovia ZIP code, a hyphen, and four more digits that determine a more specific location within a given ZIP code in Monrovia, California.
The Monrovia Zip Code is 91016, 91017.
If you want to send a mail to Monrovia City, you should use the 91016, 91017 Zip Code.
In 1983, the U.S. Postal Service introduced an expanded Monrovia 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 91016, 91017 Zip code plus four additional digits to identify a geographic segment within the five-digit delivery area, such as a Monrovia 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.