For sending mail and packages within the United States, use the following format:
Line One: Start with the name of the recipient, including any legal or professional title as appropriate. When sending to organizations, include the company name as well as the recipient’s work title and (if known) the name of their department.
Line Two: Write the street address. Remember to include the apartment number, where one exists, and any directional information (NW, SE, NE, SW).
Line Three: Write the town/city followed by the two-letter state abbreviation and five-digit zip code, on one line if it fits. Otherwise, separate the information across two lines.
47 ANYVILLE RD NW #2
ANYTOWN AZ 01234
If shipping or mailing from overseas, add a final line for UNITED STATES or USA.
International address formats are similar in structure to domestic addresses. Just be aware of minor variations in format among countries. Taking a little extra time to clarify the correct format can make all the difference when shipping overseas.
For example, in the United Kingdom it’s common to include the county or metropolitan area before the postal code:
47 ANYVILLE RD
In France, the postal code precedes the town or city name:
47 ANYTOWN RUE
And in India, it’s common to include the state before the postal code:
47 ANYTOWN ROAD
TAMIL NADU 600 002
The Universal Postal Union, which governs postal standards worldwide, provides a handy online directory of address formats for countries around the world.