How To Write an Address With an Apartment Number: The Correct Way

how to write an address with an apartment

Did you just move into your first apartment? Did someone you know just move into an apartment for the first time? Either way, you should make sure you know everything there is to know about writing an apartment address.

If you’re wondering how to write an address with an apartment number, look no further. We’ve got the answers you’re looking for.

These types of addresses can be confusing if you aren’t used to apartment life, but they become second nature once you get the hang of writing them. 

Keep reading for a comprehensive guide to writing addresses with apartment numbers. 

Table of Contents

Writing Addresses: The Basics

Before we get into different types of addresses, let’s go over the basics of addressing letters. Snail mail may have gone out of fashion, but it is still vital to know how to properly address a letter. 

You should always write the address of the person you’re sending a letter to in the middle of the envelope.

You should put their name on the first line, their street address on the second line, their city and state on the third line, and their zip code on the last line by itself. 

When all is said and done, the other person’s address should look like this:

1234 Building Lane 

Anycity, Anystate

12345 (their zip code)

Easy enough, right?

Writing Return Addresses

When you are addressing a letter, the return address is crucial. That way, if for some reason your letter cannot be delivered, it will be returned back to you. 

If you do not include a return address, your letter will get lost in the ether, and you may not have any way to know that it did not reach its intended recipient. 

Your return address should be formatted exactly like the recipient’s address, but it should be printed smaller and placed in the upper left corner of the envelope. 

Your stamps should go opposite the return address in the upper right corner.

Sending Mail to Apartment Addresses

If you’re sending mail to someone that lives in a house, congratulations! You now have all the information you need about how to properly address their letter. 

When you are sending a letter to someone who lives in an apartment complex, you will have to go through one extra step. Writing apartment addresses requires you to include an apartment number. 

Including your recipient’s apartment number will make sure that your letter gets placed in the correct mailbox. 

If you live in an apartment complex, you will need to make sure that anyone who sends you mail knows your apartment number.

What Is an Apartment Number

In many apartment buildings , your address will include the building address and a number assigned to the unit that you live in. This is a simple way for the U.S. Postal Service to distinguish between residents of apartment buildings. 

In most apartment buildings, you will have your old mailbox with your apartment number on it. 

This is a great way to keep your mail private and to make sure all mail goes to the right resident of the building. 

Usually, your apartment number is assigned to you based on where you live in the building. For example, if you live in the apartment closest to the building’s front door, you may live in Apartment 1A. 

How to Write an Address With an Apartment Number

When writing an address with an apartment number, you should write the apartment number on the same line as the building address. For example, your apartment address might read “1234 Building Lane, Apt 1F.”

That is the standard way to write an address with an apartment number. There are actually two ways that you can write your apartment number in that address.

The standard way, written out, looks like this:

1234 Building Lane Apt 1F 

12345 (your zip code)

You can also write “#1F” instead of “Apt 1F.” That’s up to you. 

The second way, written out, looks like this: 

1234 Building Lane

Those are just the two ways to write your apartment number in your address. Both are correct, and it is completely up to you to choose the method you prefer. 

For a complete list of all the Postal Service-approved ways to abbreviate your apartment number, click here .

Some online forms or government documents may require that you input your address differently. Beyond that, the world is your oyster!

When to Include Your Apartment Number

Online shopping has drastically increased since the height of the pandemic. If you order a lot of household goods or clothes online, you need to make sure you know your apartment number and include it in your shipping information.

That way, smaller packages may get placed in your mailbox. Even if you order a larger package, your apartment number can ensure that everyone in the building knows a package is intended for you. 

Always include your apartment number when ordering packages online. Of course, anyone who sends you mail should also include your apartment number.

Never Get Confused by Your Apartment Number Again

Now that you know all about how to write an address with an apartment number, getting mail and ordering packages to your home should be a breeze. You should be prepared to send mail to other people’s apartments, too!

For more comprehensive guides to apartment living, click here . 

With our help, you’ll never be confused about your apartment lifestyle again!

how to write an address with apartment number

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How to Write an Address: A Complete Guide

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Hannah Yang

how to write an address

Whenever you mail a letter, you need to write the address correctly. If you format the address incorrectly, your mail might get delivered to the wrong destination.

That’s just one situation in which you’ll need to know how to write an address. You may also need to write your address in the header of a resume, to fill out legal forms, and countless other situations.

If you’re trying to write an address, you’ve come to the right place. This article will give you a complete guide to formatting an address and provide examples of common address formats.

What Is an Address?

What are the address formats for mailing a letter, what are the address formats for specific types of addresses, should you use abbreviations in an address, address examples, conclusion on how to write an address.

An address consists of all the information that a mail carrier needs to identify a location.

Addresses contain some or all of the following pieces of information:

  • The recipient’s name
  • The organization’s name, if necessary
  • Building number
  • Street name
  • Suite number, apartment number, or P.O. box number, if necessary
  • City, town, or village
  • State or territory
  • Postal code

It’s important to include all the information that the post office needs to identify the correct location, without including any extraneous information. If you add any extraneous lines or words, it will be harder for others to figure out what the actual address is.

components of an address

When you mail a letter in the US, you’ll need to include both the recipient’s address and the sender’s address. Let’s look at how to format each one.

Mailing Address Format

Whenever you mail a letter, you need to put the recipient’s address at the center of the envelope. This is where the postal courier will look to figure out where to deliver the letter to.

If you’re writing to a recipient in the US, you should include the following pieces of information, in this order:

  • The recipient’s name on the first line. You can choose whether or not to include a title, such as Ms. or Dr.
  • The recipient’s building number and street name. Also include a suite number, apartment number, or P.O. box number on the second line, if necessary
  • The recipient's city, state, and postal code on the final line

The address should consist of three lines of text, one for each of the bullet points above.

You only need to include a suite or apartment number if you live in a building where multiple individuals or families share the same building number. That way, couriers can figure out which specific apartment to deliver the mail to.

When you write the postal code, you can write out either the five-digit ZIP code (e.g. 98052), or the five-digit ZIP code with the area-specific four-digit suffix (e.g. 98052-1134). Including your full postal code will help couriers deliver your package more quickly.

Return Address Format

The term “return address” refers to the address of the person sending a letter or package. The reason you need to include your own address on any letter or package you send is so the postal service knows where to return the mail if they’re unable to deliver it. You should place your return address on the upper left corner of the envelope.

If you live in the US, you should include the following pieces of information, in this order:

  • Your name on the first line. You can choose whether or not to include a title, such as Ms. or Dr.
  • Your building number and street name. Also include a suite number, apartment number, or P.O. box number on the second line, if necessary
  • Your city, state, and postal code on the final line

Just like with the mailing address, the return address should be three lines of text, one for each of the bullet points above.

The guidelines to follow when writing an address often depends on the specific type of letter you’re writing. For example, if you’re sending an international letter to a country outside of the US, you may need to format your address differently.

Let’s look at some of these specific guidelines.

Business Address Format

When you’re sending mail to a business address, you may need to include some additional information that you wouldn’t include for a personal letter.

That’s because the courier may need to know the company name, as well as the name of the specific person within the company you’re writing to.

Here’s the information you need to include in a business address:

  • The recipient’s name. You can precede this name with the word Attention or ATTN, followed by a colon. You can choose whether you want to include any relevant professional titles, such as Ph.D. or Esq.
  • The name of the recipient’s company or organization
  • The company’s building number and street name
  • The company’s floor or suite number, if necessary
  • The company’s city, state, and postal code

International Address Format

If you’re mailing a letter outside of the US, you’ll need to adhere to the format of the country you’re sending the letter to. That way, the postal service within that country will know where to go.

In general, these are the pieces of information you should include in an international address:

  • The name of the recipient’s house, if their home has a specific name
  • The recipient’s building number and street name, if their house does not have a specific name
  • The recipient’s city, town, or village
  • The recipient’s county
  • The recipient’s postal code
  • The recipient’s district, if necessary
  • The recipient’s country

To be safe, you should always double-check the address format of the specific country you’re mailing to.

how to write an address tip

When you write your return address on international mail, you should format it the same way you usually would. In addition, you should include your own country at the bottom of the return address.

Resume Address Format

When you write a professional resume, you should include your address at the top of your resume. You can either include it in your header or add it in the top left corner.

The good news is that you should use the same format for writing an address in a resume that you would use for writing a letter. Include all the same information you would use for a return address.

One-Line Address Format

Sometimes, you may need to write an entire address in a single line of text.

In this case, you should include all the same information that you would include in a multi-line address. The only difference is that you’ll need to replace each line break with a comma when you write an address on one line.

Make sure to include a comma after each of these elements:

  • The person’s name
  • The street address
  • The apartment number or suite

It’s perfectly acceptable to use abbreviations when writing an address—in fact, it’s often expected.

Here are some common abbreviations you should know:

  • Apartment: Apt
  • Boulevard: Blvd
  • Parkway: Pkwy

You should also abbreviate all the US states with a two-letter code. For example, you would write CA for California or DE for Delaware.

To help you understand what a correctly formatted address should look like, we’ve included some examples you can refer to.

US Address Examples

Here’s an example of a domestic residential address in the US:

John Smith 5480 7th Ave San Francisco, CA 94112

Here’s an example of a US address with an apartment number:

Ms. Mary Green 2211 Edgewood St, Apt 2 Boston, MA 02124-1331

One-Line Address Examples

Here’s how you would write each of the above addresses on a single line:

John Smith, 5480 7th Ave, San Francisco, CA 94112 Ms. Mary Green, 2211 Edgewood St, Apt 2, Boston, MA, 02124-1331

Professional Address Examples

If you’re writing a business letter, don’t forget to include the organization’s name. Here’s an example:

Attn: Rachel Long, CEO The Greatest Writers’ Organization 780 English Avenue, Floor 8 Seattle, WA 90199

International Address Examples

Here’s an example of an address in Canada:

Jacob White 423 Second Street NE Montreal, QC H3Z 2Y7 Canada

(In this case, Montreal is the city, QC is the province, and H3Z 2Y7 is the postal code.)

Here’s an example of an address in Great Britain:

Harry Brown 87 Blackstone Street London EC1Y 8SY England

(In this case, London is the city, and EC17 8SY is the postal code.)

There you have it—a complete guide to writing an address correctly! Here’s a quick recap:

  • An address should include everything a mail carrier needs to identify the recipient’s location
  • It’s expected that you’ll use standard abbreviations, such as St for Street
  • The guidelines may be different for international addresses, so always double-check each country’s guidelines

Lastly, make sure you write your address in clear and legible handwriting, so your mail can be delivered efficiently.

how to write an address with apartment number

Be confident about grammar

Check every email, essay, or story for grammar mistakes. Fix them before you press send.

Hannah Yang is a speculative fiction writer who writes about all things strange and surreal. Her work has appeared in Analog Science Fiction, Apex Magazine, The Dark, and elsewhere, and two of her stories have been finalists for the Locus Award. Her favorite hobbies include watercolor painting, playing guitar, and rock climbing. You can follow her work on hannahyang.com, or subscribe to her newsletter for publication updates.

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How To Correctly Write An Apartment Address (2023)

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Home » Moving Guides » How To Correctly Write An Apartment Address (2023)

Knowing how to write an apartment address is essential to ensure your mail gets delivered to your apartment. If you need to familiarize yourself with how to write an apartment address, getting the formatting right might take some practice and mistakes. However, if you know what information is needed, it’s a straightforward process.

Let’s dive into some key points Roadway Moving picked to help you write your address perfectly on the first try.

Firstly, both parts of your address must be written in all capital letters. If your street name has a suffix, such as Rd or St., that should go after the street name. The two-letter state abbreviation should precede the postal code. And if there is no street name in your address, then the city name can be placed in the middle instead.

The Formula

You must write the name and address on the front side of the envelope only. Do not put any other information on the front, such as a return address or an indication that this is a gift. The rest of your mail can be sent to a post office box if you want to keep your home address private.

  • Write the recipient’s first and last legal name in capital letters on the first line. Even if you know them by a different name, the apartment probably doesn’t have their nickname, so they might not get the mail.
  • You’ll note the full street address followed by the apartment or suite number on the second line. Street Number → Street Name → Unit Designator Abbreviation → Unit Number
  • The formula for line three includes City, State Abbreviation, and Zip+4 code.

In the end, it should look something like this:

Peter Parker

123 Main St., Apartment 1A

Hollywood, CA 90210

Apartment Address Abbreviations

  • Basement – BSMT
  • Front – FRNT
  • Lobby – LBBY
  • Building – BLDG
  • Floor – FL
  • Hanger – HNGR
  • Slip – SLIP
  • Lot – LOT
  • Pier – PIER
  • Rear – REAR
  • Side – SIDE
  • Lower – LOWR
  • Space – SPC
  • Room – RM
  • Suite – STE
  • Trailer – TRLR
  • Unit – UNIT
  • Apartment – APT
  • Key – KEY
  • Penthouse – PH
  • Department – DEPT
  • Office – OFC

“C/O.” and “Attn.”

Sometimes, your message is intended for a specific person within a larger organization or household. For example, you might send a message to your boss at work. In these cases, it’s essential to be clear and concise so that the right person receives your message. In this instance, you would use “Attn.” (attention) and “C/O” (in care of) when addressing a letter. This will ensure that the letter gets to the intended recipient.

  • “C/O,” or “care of,” is used when addressing an individual who is being cared for by someone else. For example: Legal Name C/O Name of the person who the individual is in the care of Street Address City, State Abbreviation, Zip+4 Code
  • “Attention” or “attn.” should be used when your correspondence is for a specific person in a professional setting, such as a business or department. And it should look something like this: Attn: Individual’s Legal Name Organization Name/Company Street Address/P.O. Box City, State Abbreviation, Zip+4 Code

International Mail

If you are sending mail internationally, it is essential to remember that different formats are required for certain countries . For example, if you send mail to China or another Asian country, you must write your name and address in Chinese characters. When mailing items abroad, you should also consider using a bilingual sender’s name and address. This way, your mail will reach its intended recipient without problems.

What happens if you don’t put the correct information?

In most cases, the post office will not be able to deliver your mail, and you may end up with a lot of undelivered mail . You need to include official abbreviations in your address so the mail carrier can identify where it should go. Another vital thing to remember when writing an apartment address is that it must include a state abbreviation. The post office uses these abbreviations to determine which part of the country your mail belongs to. You should also use your area’s correct postal code.

In conclusion, the best advice is always to write out all four lines of the address when sending mail to an apartment. Although it may be easier to just write ‘Suite #1234’ in the address section, this will not help your mail get delivered properly. This way, USPS employees can correctly identify and deliver your parcel.

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how to write an address with apartment number

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COMMENTS

  1. How to Write an Apartment Address Perfectly

    Step-By-Step Instructions for Writing an Apartment Address. 1. Place Your Delivery Address In the Center of Your Mail. Placing the delivery address in the center of your mail is standard. This is the location ... 2. Begin with the Full Name of the Recipient. 3. Write the Street Name and Number on ...

  2. How To Write an Address With an Apartment Number: The Correct Way

    How to Write an Address With an Apartment Number. When writing an address with an apartment number, you should write the apartment number on the same line as the building address. For example, your apartment address might read “1234 Building Lane, Apt 1F.” That is the standard way to write an address with an apartment number.

  3. Writing Addresses

    When writing an address with an apartment number (i.e. #203) in a sentence, do you use a comma between the street address and the apartment number? For example: Please send all correspondence to 123 Broad Street #203, Kalamazoo, MI 12345. or. Please send all correspondence to 123 Broad Street, #203, Kalamazoo, MI 12345

  4. How to Write an Address: A Complete Guide

    Suite number, apartment number, or P.O. box number, if necessary City, town, or village State or territory Postal code Country It’s important to include all the information that the post office needs to identify the correct location, without including any extraneous information.

  5. How To Correctly Write An Apartment Address (2023)

    Street Number → Street Name → Unit Designator Abbreviation → Unit Number The formula for line three includes City, State Abbreviation, and Zip+4 code. In the end, it should look something like this: Peter Parker 123 Main St., Apartment 1A Hollywood, CA 90210