Address Verification

Postal Address Example

By 1 March 2026September 14th, 2026No Comments

How to Write a Postal Address Example? (December, 2026)

A postal address provides the necessary information to locate a street, building, home, structure, room, etc. An address can include streets, political boundaries, building numbers, ZIP codes, etc. For sending postal mail, you must include both the recipient’s and the sender’s addresses.

Address to Coordinates

However, it is necessary to ensure a specific format depending on your country’s postal authority. USPS provides its address database to route mailers to their intended destination in the US. You should understand the different formats for writing domestic, apartment, business, military, and international addresses. USPS has specific guidelines for writing each address in the correct format.

Generally, a postal address example must have the recipient’s full name in the first line. The second line should include the house number and street address. Then, you have to mention the name of the city or town in the next line. In the following line, mention the name of the city or town.

Adding the correct postal code format on the next line is also necessary to complete the format. The last line should always have the country’s name.

TL;DR

  • A postal address is essential for locating buildings or plots of land, and must adhere to specific formats for successful mail delivery.
  • USPS provides guidelines for different address types, including domestic, military, and international formats.
  • Incorrect formatting can lead to mail being undeliverable, returned, or delayed, making address normalization crucial for accuracy.
  • Including a return address is advisable to ensure undelivered mail can be returned to the sender.

Key Takeaways

  • A postal address provides the necessary information to help you find a plot, street, building, structure, apartment, room, etc.
  • USPS provides specific guidelines about the official postal address format.
  • There are 5 types of addresses: domestic, apartment, business, military, and international.
  • You need a proper postal address for sending or receiving mail.
  • USPS uses its official address database for routing mailers to their correct destinations.
  • It is a good practice to include a return address to your mailers, although it’s not mandatory.
  • PO Box addresses also have a specific format.
  • Individuals and businesses should consider address normalization to standardize their addresses.

What Is a Postal Address?

A postal address is a mailing address that you can use to mail something via the post office. It is often referred to as a “postal address” because it is mentioned in the country’s official postal authoritative database. For instance, in the U.S., USPS maintains a record of millions of addresses and delivery points. Any address mentioned in these records is a postal address. You can use a CASS-certified address verification vendor to validate and standardize addresses against the official database.

💡Also Read: Agent Address vs Business Address

Postal Address Example

If you send and receive mail regularly, you are likely aware of how to write a postal address correctly. Although it seems like something anybody can do, it is not that simple. Even a few minor mistakes can lead to lost mail and delays, hence costing you a lot. The easiest way to avoid this scenario is to look up postal address examples and follow them correctly. It's also helpful to include a phone number with the mailing address when sending parcels, as many courier services now contact recipients for delivery updates or confirmation.

How do you write an address? Before getting to this question, let us understand the two broad categories of addresses used for mailing.

  • The first category consists of the recipient’s address. It is further divided into many types
  • The second category is the sender’s address, which is much simpler to understand and write

💡Also Read: What is Address Autocomplete

How Does Incorrect Address Formatting Lead to Returned Mail or Customs Issues?

If an address does not follow the correct format for the destination country, the automated system may not recognize the elements. The postal service might not route the package, which could result in it being marked as undeliverable. If it gets processed, it might not reach the recipient or be sent back to the source. Some of the common formatting issues that cause returns are:

  • Missing ZIP codes
  • Wrong order of city and province
  • Not mentioning a P.O. box when required, such as for countries like the UAE.

For international mailing, the customs declaration must match the address. If the address format is wrong or incomplete, customs may be unable to verify the recipient's identity. The package might get flagged for manual inspection and will be held indefinitely.

What is a Street Address?

Addresses provide the necessary information for someone to locate a street, plot of land, building, structure, room, etc. It comprises political boundaries, organization names, streets, building numbers, ZIP codes, etc., in a specific format. Though you may use addresses for many reasons, you primarily need them for receiving mail. USPS leverages address databases to route mailers to their correct destinations.

💡Also Read: Mexican Address Format & Examples: How to Write & Verify it

Domestic Address

Domestic addresses are used when mailing to recipients in the US itself. You can use an address verification API like PostGrid to verify your mailing lists. PostGrid is CASS-certified and hence allows you to access fully verified addresses.

While using envelopes, place the recipient’s address right in the center. In case you are sending postcards, the mailing address is supposed to be written on the backside towards the right.

Here’s how to write a mailing address:
  • The first line should have the recipient’s full name
  • Write the delivery address on the second line, including the building/apartment/suite number and the street name
  • On the third line, write the city name, state abbreviation, and ZIP code

Find the mailing address example below to understand the format better:

Cecelia Havens
456 White Finch St.
North Augusta, SC 29860

The USPS automated mail sorting and processing machines read all addresses starting from the bottom and moving upwards. Hence, they first look for the city, state, and ZIP code, and then the street address. If you mention the last line wrong, the USPS might not be able to deliver your mail to the right address, leading to unnecessary delays and misplacements.

💡Also Read: What is Address Capture?

Apartment Address

Writing a domestic address is simple until you add an apartment, suite, or floor number to the mix. Though the complete address remains the same, you might require some adjustments. Add the number on the street line—before the street name.

For example, if you live in the 5th apartment on 1st Avenue Street, your street line would look like this:

5 1st Avenue ST

The address format would be:

Recipient’s Name
Apartment Number | Street Number and Name
City Name, State Abbreviation | ZIP Code

You must also follow this format for floors, suites, buildings, and room numbers. Imagine a postman entering a building with ten floors and 50 apartments. How would they know where to deliver the item? Adding all the details down to these numbers would save everyone time, money, and effort.

💡Also Read: What is Transliteration in Address Verification?

Business Address

Business addresses are mainly used by B2B companies. Such addresses cannot be written and formatted in the same way as a regular residential address. Geographically, they can be considered to be the same, but there are some obvious differences.

How do you write an address on business mail?

  • The first line should again include the recipient’s full name. Since there are many people working at an organization, make sure you mention the name of the concerned person only. You can write “ATTN:” or “Attention:” before the person’s name. It is not necessary to do so, but it is a popular practice. Moreover, some people also put a title (CEO, VP, and so on) in front of their names. Hence, you can do the same.
  • Mention the organization’s name on the second line. The USPS workers can easily get your mail delivered if you use the same business name as mentioned outside their office.
  • The next line should have the building/apartment/suite number and the street address, similar to a regular address.
  • The last line should have the city, state, and ZIP code.

Find below a business letter address example:

ATTN: CEO David Kenner
Kenner Group Inc.
85 Bradford Lane
Vincentown, NJ 08120

How to Format Business vs Residential Addresses?

Factors Business Residential
Company Name You must add the name of the organization. It's not needed, as the person's name is enough.
Department Adding this ensures correct delivery. This is not required.
Job Title You may or may not add this. This is not necessary.
For the Attention Of This is used to ensure the package lands at the right desk or office. You may or may not add it, as it is not needed.
Example GHF LTD.
ATTN: JAMES CLARKE
LOGISTICS DEPARTMENT
456 ELM STREET
AUSTIN, TX, 24132
UNITED STATES.
MR. JOHN SMITH
567 ELM STREET
AUSTIN, TX, 24132
UNITED STATES.

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Military Address

Military addresses are always affiliated with either an APO (Air/Army Post Office), FPO (Fleet Post Office), or DPO (Diplomatic Post Office).

  • Every mail going to an APO/FPO/DPO should have the recipient’s full name, rank, and unit. You cannot replace the recipient’s name with the words “Any Service Member” because it is not permitted anymore.
  • Military mail is handled separately by a dedicated postal channel. Hence, never mention the city and state names in military addresses. It is done to prevent military mail from entering domestic and foreign mail networks.
  • Instead of the city name, mention either of these abbreviations: APO, FPO, or DPO. Similarly, replace the state name with the acronym that indicates the recipient’s duty station. The acronym could be:

AA = Armed Forces of America
AP = Armed Forces of the Pacific
AE = Armed Forces of Europe

  • Always use 9-digit ZIP codes while writing military addresses.

The military postal address example is simple. Mention the service member’s name and title, accompanied by the unit and APO/DPO/FPO number.

PFC Isobel Jones
PSC 5 BOX 7260
APO AE 15069-8873

💡Also Read: What is Address Cleansing?

USPS Guidelines to Follow When Writing a Postal Address

Make the Address Readable by the USPS Sorting Machines

An automation-readable mailpiece means a letter or envelope that machines can read easily. It must have a full and correct address or a ZIP+4 Intelligent Mail barcode. Also, the address and barcode should be clear enough for sorting machines and scanners to read without trouble.

Type or print addresses by a machine in dark ink on a light background. It is best to use capital letters. You do not need most punctuation marks, except for the hyphen in street numbers or the ZIP+4 code. Please remember that all address lines should start from the same left side and be neatly aligned. And write the country name alone on the last line when sending mail to another country. Other points to remember are:

  1. The letters and numbers in the address should not touch each other and have equal space between them. 
  2. The address should be straight and parallel to the bottom of the envelope. 
  3. Always include important details like direction (N, S, E, W), apartment number, floor, or suite number.
  4. The address must fit inside a special area on the envelope where machines can read it properly. The barcode also has its own clear space where nothing else should be printed.
  5. Do not print extra words, logos, or designs near the address. Keep any extra text above the address and far away from it so the machines do not get confused.

Focus on the Delivery Address Line and the Last Line of the Postal Addresses

The delivery address and the last line of the address on a mailpiece must be full, correct, and checked using official USPS ZIP+4 and City–State records. This helps make sure the address matches what the Postal Service has in its system.

A complete address means it has all the needed parts, such as the house or building number, street name, city, state, and ZIP+4 code. The address must match USPS records so the mail can be sorted to the exact delivery location. Some types of mail require a complete address to qualify for automated processing and lower postage rates.

A standardized address means the address is written in the format that USPS prefers. It must include all required parts and use USPS-approved short forms. For example, “Street” should be written as “ST” and “Apartment” as “APT.” Using these standard formats helps machines read and sort mail faster and more accurately.

Use 2-Letter State or Possession Abbreviations

When writing an address, use the short, two-letter form for state names (like CA for California or NY for New York). This helps keep the last line of the address short and neat.

Using state abbreviations makes it easier to fit the city, state, and ZIP Code on one line. The line should be arranged like this:

City name, a space, state abbreviation, two spaces, and then the ZIP Code or ZIP+4 Code.

This layout helps postal machines read the address correctly and sort the mail faster. Keeping everything in this format reduces mistakes and helps your mail reach the right place without delays.

International Address

Writing international addresses can be tricky. The format depends on the guidelines laid down by the destination country’s post office. You need to take care of these things before sending out international mail. For many countries, you also have to transliterate addresses into their national language. PostGrid’s address verification API can help you do all of it easily.

What is a postal address example for international destinations?

Find below the steps to write an international address. We are using the general format of postal addresses, typically used around the world.

  • The recipient’s full name is supposed to be mentioned in the first line.
  • The second line should have the house number and street address. This line can differ widely from country to country.
  • The next line should mention the name of the city or town.
  • Write the state or province name on the following line.
  • Mention the correct postal code format on the next line.
  • The last line should always have the country’s name. Some countries require you to write their full names, while some of them prefer abbreviations.

Find below two international address examples:

1.

Jacob Tomlinson
75N Southern Street
London NW5 9XE
England

2.

Noah Tonkin
86 Baker St.
North Sydney NSW 2156
Australia

💡Also Read: How To Write International Address?

Differences in Postal Conventions Across the World

While there is no standard format for international mail delivery, the cross-border postal harmony is maintained by the Universal Postal Union. It is a specialized agency of the UN that offers various services, one of which is deciding the format for international mailing.

We have listed examples from the USA, UK, Canada, and the EU for your better understanding. All the formats are verified against the postal standards of UPU as of 2025.

USA

Name JOHN SMITH
Street Address 1600  PENNSYLVANIA AVENUE NW
City, State, ZIP Code WASHINGTON, DC 24312
Country UNITED STATES OF AMERICA

 

According to USPS and UPU, you must keep the following things in mind when writing an address for mail to the US.

  • You must add a five-digit ZIP code. You can also add a ZIP+4 code to provide a specific location.
  • There must be a comma between the city and state names, but not between the state and ZIP code.

UK

Name MIKE RUSSEL
Street Address 23 DOWNING STREET
Post Town LONDON
Postcode SW1 2DD
Country United Kingdom

 

Things to consider:

  • Do not add any punctuation between any address elements.
  • The postcode is alphanumeric, specific, and essential.

Canada

Name GEORGE MATTHEWS
Street Address 23 MAIN STREET
City, Province, and Postal code TORONTO ON A2D 3F4
Country CANADA

Keep the following things in mind:

  • There should be a space between the third and fourth characters of the postal code.
  • Unless it is a part of the proper noun, avoid using punctuation in the Canadian address. The automated system might misread it, which can lead to delivery delays or failure

EU (for example, Germany)

Name SARAH MULLER
Street and House Number HAUPTSTRASSE 34
Postal Code 34265 
City HAMBURG
Country GERMANY

Things you must remember:

  • There should be no separating commas between address elements sharing the same line, like street and house number.
  • If you're mentioning a P.O. box, write it in two-digit groups, separated by a space, starting from the last number.

Common International Address Formatting Mistakes

Adding an Incorrect Country Name or Omitting It

You may have misspelled the name of the country or written it entirely wrong. Take, for instance, instead of ‘Germany,' you have written ‘Deutschland' when sending mail from the US. Your package may be held at customs or returned to you.

Wrong Order

As you can see from the examples above, each country follows a different order for arranging address elements. If you write international mail in your country's format instead of the destination's, their automated system might not recognize it.

Take, for instance, postcodes, which are placed at different locations within an address in various countries. In most EU countries, it comes before the city, but in the UK/US, it should be placed at the end. Putting it in the wrong place might lead to delivery delays.

Not Adding P.O. Box

Certain countries, like the UAE, Oman, or some African nations, do not have street addresses. In this case, it is essential to mention the P.O. box. Not adding it may make the mail undeliverable.

International Postal Address Formats: Templates for 10+ Countries

Australia

RECIPIENT NAME DAVID JONES
STREET ADDRESS 46 KING STREET
TOWN STATE ABBREVIATIONS POSTCODE NEW SOUTH WALES SYDNEY 1423
COUNTRY NAME AUSTRALIA

France

RECIPIENT NAME JOHN PINOT
STREET ADDRESS 24 RUE DE RIVOLI
POSTAL CODE CITY 14231 PARIS
COUNTRY NAME FRANCE

Japan

POSTAL CODE 132-0987
PREFECTURE, CITY, STREET ADDRESS TOKYO-TO, YOKOHAMA, JINGUMAE 3-9-9
RECIPIENT NAME AKIRA HINATA
COUNTRY NAME JAPAN

India

RECIPIENT NAME ASHOK JHA
STREET ADDRESS OR HOUSE NUMBER 12-B, SRI KIRSHNA VIHAR APARTMENTS
CITY OR VILLAGE, STATE, PIN CODE SRIHARIPURAM VISAKHPATANAM 530011
COUNTRY NAME INDIA

Brazil

RECIPIENT NAME CARLOS VERGARA
STREET ADDRESS RUA AUGUSTA, 435
NEIGHBORHOOD CENTRO
CITY-STATE ABBREVIATIONS SAO PAOLO-SP
POSTAL CODE 14232-001
COUNTRY NAME BRAZIL

Russia

RECIPIENT NAME ANYA DMITRY
STREET ADDRESS ULITSA TVERSKAYA, DOM 89, KV. 6
CITY MOSCOW
REGION MOSCOW OBLAST
POSTAL CODE 132435
COUNTRY NAME RUSSIA

China

RECIPIENT NAME CHEN WU
STREET ADDRESS, DISTRICT 234 HEPING ROAD, HAIDIAN DISTRICT
CITY, PROVINCE BEIJING, BEIJING
POSTAL CODE 132465
COUNTRY NAME CHINA

South Korea

RECIPIENT NAME KIM SOO HYUN
STREET ADDRESS, DISTRICT 231 GANGNAM-DAERO, GANGNAM-DU
CITY OR COUNTY, PROVINCE POSTAL CODE SEOUL, SEOUL 42313
COUNTRY NAME SOUTH KOREA

South Africa

RECIPIENT NAME LUBANZI ADAAN
STREET ADDRESS 23 NELSON MANDELA DRIVE
SUBURB ORLANDO WEST
CITY POSTAL CODE DURBAN
COUNTRY NAME SOUTH AFRICA

Italy

RECIPIENT NAME EMMA AURORA
STREET ADDRESS VIA ROMA 67
POSTAL CODE CITY (PROVINCE ABBREVIATION) 13243 ROMA (RM)
COUNTRY NAME ITALY

Mexico

RECIPIENT NAME JUAN PEREZ
STREET ADDRESS AVENIDA REVOLUCIÓN 1232, DEPTO 7
POSTAL CODE, CITY, STATE ABBREVIATION 13242, TIJUANA, CDMX
COUNTRY NAME MEXICO

UAE

RECIPIENT NAME FATIMA MATI
PO BOX PO BOX 1324
CITY ABU DHABI
COUNTRY NAME UNITED ARAB EMIRATES

New Zealand

RECIPIENT NAME MARY THOMAS
STREET ADDRESS 21 QUEEN STREET
SUBURB MOUNT EDEN
CITY POSTCODE AUCKLAND
COUNTRY NAME NEW ZEALAND

How to Handle Non-Latin Characters in Postal Addresses

It is common to come across non-Latin characters in international mailings. How you handle it depends on the situation. Take, for instance, sending mail to China; you can write the whole address in Latin characters and follow their national postal format.

However, if the country uses a non-Latin script, we recommend including both versions. Add the native script for local use and a Latin transliteration for international handling.

Do not only use Latin characters when mailing to a foreign country, as their postal service might not recognize the address. This can lead to delays, misrouting, or the return of the mail.

💡Also Read: What Are ZIP Codes and How Do They Work?

Return Address Format

It is not mandatory to mention a return address, but it is always advisable to mention it. If your mail is not delivered due to some reason, the USPS will be able to return it to you only when a return address has been mentioned. In fact, the USPS has made it essential to mention return addresses on all international mail. Therefore, both individuals and companies should normalize writing return addresses on every outgoing mail piece.

💡Also Read: Where to Write Return Address on Letter?

While writing postal addresses on envelopes and postcards, take care to differentiate between the mailing address and the return address. You need to mention the sender’s address in the top-left corner of the envelope. The address format for return addresses is the same as the format used for regular mailing addresses.

  • Mention your full name on the first line (this is optional; you can rather mention your department name)
  • Write your company’s name
  • Mention your building number and street address
  • Name your city and state, along with your ZIP code

Return address example:

Jamie Bower
157 Windfall Rd.
Tampa, FL 32506

If you wish, you can include your phone number below the address. It is a smart option when you want the recipient to contact you.

💡Also Read: How Does Bulk Address Verification Work?

How to Write a PO Box Address?

What is a postal address, for example? Sometimes, you need to mail to a PO box and not an individual mailing address. Here, you can omit the building or apartment number and the street address altogether. Find below how to write a PO box address:

  • As usual, write the recipient’s full name on the first line.
  • On the second line, you need to mention the prefix “PO Box.” Add a space and continue writing the box number.
  • You can write your city name, state abbreviation, and ZIP code in the same way as you write for regular addresses.

PO box address example:

Georgia Labonair
PO BOX 523029
West Chester, PA 18630

Never mention the apartment number and street address if you are mentioning the PO box number. Otherwise, you can mention both, but on two different lines.

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Stamps

Without stamps, your mail will be declared useless. Even though you would have mentioned the mailing and return address correctly, USPS cannot deliver your mail without the right stamps.

You can stick your stamps on the top-right corner of your postcards and envelopes. Affixing stamps is easy, but it is difficult to ascertain the right amount of postage and the number of stamps to be used.

For standard one-ounce envelopes to be sent locally or nationally, it is recommended to use Forever stamps, as you can always use them despite any future price changes.

Every ounce after one will cost you 15 cents. Hence, you will need to use the additional ounce stamps for every ounce over one. Otherwise, you can use two-ounce stamps.

USPS Guidelines for Physical Addresses

After understanding so many postal address examples, it is better to have a look at some of the USPS address guidelines that you need to keep in mind:

  • Your mailing address and stamps should be on the same side
  • Never use any punctuation marks
  • Write in capital letters
  • Using black ink on light or white paper is recommended
  • Leave one space between the city name and the state abbreviation
  • Leave two spaces between the state abbreviation and ZIP code

Some other things to follow are:

  • Use the right street suffix abbreviations. Some of the popular ones are ST (street), CT (court), AVE (avenue), and BLVD (boulevard).
  • Mention the right street directionals: N, S, E, W, NE, NW, SE, SW.
  • Don’t use the # sign for writing apartment or suite numbers. Use abbreviations like APT (apartment), STE (suite), and FL (floor). Hence, a proper street address example would be STE 10, NW Main St.
  • Use at least a 10-point font.

Address Normalization: Why Should You Pay Attention

The US address format shows you that you must follow USPS-prescribed guidelines to write your address on letters, cards, or packages. Similarly, all countries have specific rules around mentioning delivery addresses. You must reformat all addresses to ensure you follow them.

We call it address standardization. However, you must also look into address normalization. It helps you consider the qualitative aspect of addresses.

Normalization lets you consider missing data, typos, misspellings, obsolete elements, etc. Sending mailers with addresses having such errors can result in delays, misplacements, reshipping, etc. Thus, investing in it is crucial.

Just as you would safeguard valuable business information or physical property, understanding asset protection examples helps highlight why protecting data accuracy—like correct mailing addresses—is a vital step in reducing operational risks.

Address normalization ensures you translate or transliterate delivery addresses without mistakes so the postal carrier in foreign countries can deliver your items hassle-free. Luckily, PostGrid helps you with it with its verification solutions. You can check and update your databases within minutes.

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Conclusion

Learning how to write an address and manually doing the task for a few mail items makes sense. But what if you need to mail in large volumes? It can get extremely boring and tedious. Plus, you are likely to make mistakes while doing something manually. Therefore, businesses can rather use PostGrid’s address verification API to autocomplete, parse, standardize, validate, and verify addresses at lightning speeds.

With our Address Verification solution, you can validate addresses in more than 245 countries and territories. We have access to the official postal database of most countries worldwide, and we reference it to provide correct, complete addresses.

Do you need to validate the format of any country? Try our Address Verification solution today!

:bulb: Also Read: Zip Code Validation

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Kevin Villena

Kevin Villena

Kevin Villena is the direct mail automation and address data expert, boasting a decade of experience in the Direct mail industry. Kevin's extensive knowledge in Direct Mail and Address Data makes him an invaluable asset to the PostGrid team. His expertise encompasses developing and executing strategic marketing plans that drive marketing, sales and customer engagement. Kevin's deep understanding of address verification and direct mail logistics ensures that PostGrid's clients receive the most effective and accurate solutions. In his spare time, Kevin enjoys exploring new marketing trends, traveling, and attending industry conferences.