Address Verification

What is Address Line 2?

By 21 November 2021No Comments
what is address line 1 and 2

What is Address Line 2 and How to Fill It Out?

Who among us doesn’t like shopping stuff online? It would be a pretty safe bet to say that the majority of us enjoy shopping online. Perhaps the only thing we don’t like about shopping online is filling out lengthy forms (apart from spending our money, of course).

what is address line 1 and 2

Sometimes, we would see address line 1 and address line 2 in little boxes, and we immediately start to feel reconsider filling up the form. One reason why people don’t want to fill address lines 1 and 2 is that most of them don’t even know the difference between them. They shouldn’t have to either because they are the customers.

However, you can’t say the same for businesses that implement address lines in their forms. Not just eCommerce, but businesses of all kinds use address lines in their online forms. At first glance, the address lines may not seem relevant enough for companies to discuss them. 

The consequences of an address line issue are much more significant than what you might think. First, any errors or confusion concerning the address line may result in validation failures. If that happens, the user may end up abandoning the form altogether out of frustration.

No business wants to lose sales or potential leads because of an address line issue. So, if your company uses an online form, you need to educate yourself on the address line 2 field. You need to understand the proper use of address line 2 fields in a form and learn how to use it effectively.

So, if you wonder what address lines 1 and 2 are and how you can better utilize address lines, you have come to the right place.

What Is Address Line 2?

Address Line 2 is something all of us are familiar with, and this goes for both the users and the website managers. Perhaps the reason why address line 2 has gone unnoticed for ages is because of this familiarity. Most of us think it is a good practice to include a second address line in online forms and we end up implementing it without much thought. 

So, why would anyone want to optimize something which is already a popular choice in the online medium? As address line 2 is a popular choice no one bothered to check whether it poses an issue to user experience. As a result, most businesses don’t consider changing address lines even when optimizing their online forms.

Address Line  Information To Include
Address Line 1 Here, you must include primary information, including the street address.
Address Line 2 The address line should contain details such as:

  • Apartment number
  • Suite number
  • Room number
  • Floor number
  • Box number
  • Care-of address 

What Is Address Line 1 And 2 According To USPS Standards?

Some of you may already know that the USPS has a standardized format defined for postal addresses inside the US. According to USPS standards, a postal address usually consists of three lines and four if the address includes a company name. The USPS-standardized address lines include the following details:

  • The Name of the recipient.
  • The Company Name if applicable.
  • The delivery address.
  • The city, state, and zip code.
  • The street address
  • Details like an apartment, suite, room, floor, or Box number.

We know that the details mentioned above should all be included in a USPS standardized address. But, what you may not know is the standardized format for writing the address according to the USPS.

We know the first line of the address contains the recipient’s Name. Up next, you have the delivery address line, which includes the actual address of the recipient. And finally, we have the city, state, and zip code line.

Look at Address Lines From The Customer’s Point of View

To understand the problem with address lines, you need to start looking at it from the customer’s point of view. Once you look at the address lines in a form from the user’s perspective, you will see that the multiple lines are confusing. 

As soon as the user sees multiple address lines, their head starts filling up with questions. 

“Do I have to fill the second address line?”

“Should I just enter the house number and local area in the first address line?”

“Can I just skip the second address line and fill my address on the first line?”

“Why is there a second line for the address?” 

It is not hard to imagine your customers asking themselves such questions. The chances are that you have asked these questions to yourself at some point. So, the user’s confusion in the case is very understandable.

Sadly, this minor confusion may have devastating effects on your business. The worst-case scenario is that the confusion causes the customer to freeze and potentially abandon the cart. So, if it goes unchecked, there is a fair possibility that your abandoned cart rate goes up significantly.

The chances of customers abandoning their cart solely because of address line 2 is minimal to none. However, it can serve as a powerful catalyst towards the user’s decision to leave the cart.

What is The Purpose of Address Line 2?

It might shock you to know that the people who design the forms include the second address line for no purpose. “Why would they implement the address line 2?” you might wonder. Well, because “everyone else is doing it.”

Although most of us are unaware of it, the address line 2 field was originally created for a reason. So, what is that reason? What information should you actually feed into the address line 2 field?

You can include several pieces of information on the address line 2 field, such as 

  1. The apartment number.
  2. The floor to which the user’s address belongs.
  3. The room number
  4. PO Box number if the user is using a PO Box address.

The examples above should give you a fair idea of what information the address line 2 field is originally meant to hold. In real-life situations, most people won’t even need the second address line.

For instance, if your delivery address is 1408 Hogwarts Street, you don’t have to fill the second address line.

What is Address Line 2 Used For in Practice?

We have already established that no one knows the purpose of the address line 2 field. So, what then is the address line 2 used for in actual practice? It is evident that there is uncertainty surrounding what to put in the second address line. Due to this uncertainty, users end up providing a variety of information in the address line 2 field.

Most people usually end up putting details like their secondary address, C/O or in-care-of address, and even special instructions. There is also a chance that the user splits their address into two to use both address lines in the form.

Apart from this, the address line 2 field can come in handy when your address is too long for address line 1. For example, it usually happens when a delivery address is a work address. Here, you will need to include details such as:

  • The Name and title of the recipient.
  • The department in which the recipient works.
  • The company name.
  • The mailing address of the company.

Although rare, some forms have a field for providing company information. You do not have to push the mailing address to the second address line if there is a field for company information.

How to Use The Address Line 2 Fields on Forms Correctly

There is a rule in UX design that every designer follows, and that is “ALWAYS remove friction. NEVER Create it.” The same rule applies when you are developing an address entry field for an online form. You need to remove any friction elements if they are removable and ensure a fluidic user experience.

Usually, if you want to create a form with minimal friction elements, you must first consider your target audience. Looking at the audience and analyzing them can help you figure out what all details you need them to enter in the form. You may then optimize the form for that specific audience.

However, this may not be the best approach to configure the address form. Why? Let us assume that 8 out of 10 prospects do not need an address line 2. So, does that mean we take a majoritarian approach and ignore the needs of the remaining two people?

No, businesses must always aim for the best result and must never settle for anything less than that. Ideally, all your prospects should be able to fill up the form in a way that’s easy and convenient.

Best Ways to Present The Address Line 2 Field in a Form

After examining several practices for presenting the address line 2 field to the user, we found three especially effective approaches.

Use a Descriptive Copy

As we mentioned before, the biggest problem with address lines is that they cause unnecessary confusion. Instead, you can use a descriptive copy to guide the users through the form. A descriptive copy can efficiently explain the online form and its fields.

Initially Hide Address Line 2

We know that the majority of the users do not require the address line 2. Therefore, it makes sense to hide address line 2 initially. This way, you can make sure that there is no confusion in the form. And in case the user needs the second address line, they can easily find it on the form and unhide it.

Combination of Descriptive Copy And Hidden Address Line

You can use the hidden address line 2 in combination with a descriptive copy that guides the user. This way, you can inform the user about the invisible address line and ensure that they do not miss it. The combination is the best for minimizing confusion and enables easy and fast filling of the form.

Popular Practices Used For Address Line 2

Address line issues are not easily noticeable, but they did get noticed eventually. Eventually, companies formulated several practices to rectify the address line issue, but not all got desirable results.

However, some of the best practices successfully solved the problems of address lines on online forms. As a result, these practices have become the standard best practices for implementing the address line 2 field.

Some of the best practices for address line 2 are as follows:

Analyze Your Current Mailing List For Audience Needs

Analyzing the current mailing list is one of the essential and popular practices for implementing the address line 2 field. In this approach, you must analyze what the audience needs from the form. Then, you should try to come up with an optimized structure that can intuitively serve the users.

Expandable Address Line 2

Another popular option when it comes to the second address line is to use an expandable format. Include an option/button in the online form that says something like “Add more space for the address.” Clicking on this option/button should expand the form to reveal the second address line.

You can also set up an auto-expansion feature that automatically opens address line 2 after detecting the address needs more space.

Ensure Your Users Understand Address Line 2 is Optional

Another widespread practice used for the “address line 2” field is to ensure that the user knows it is optional. There are several ways to do this. For example, you could go with a writing that says “Optional Field” right beside the address line 2 field. Using a “*” Besides the mandatory fields is also a way of letting the user know that the address line 2 field is optional.

Include Instructions on The Form

Sometimes the most straightforward solutions are the most effective ones, and including instructions on the form is as simple as it gets. However, providing short and accurate instructions with helpful examples can get the point across to the users.

Proper Labeling of The Address Fields

One of the worst mistakes you can make when implementing an online form is labeling it wrong. Suppose if you label the address field as “Address 1” and “Address 2” it can be very confusing to the user. The labels you use should be more clear and cause minimal confusion.

The bare minimum you can do is to include “line” in the labels. For example, change the labels to “address line 1” or “address line 2.” Even then, the terms are very similar and confusing. Therefore, you must try to label the address fields better and minimize confusion.

Additional Tactics You Can Use to Minimize Confusion

There are several other methods by which you can help you minimize the confusion in online forms due to address line 2. However, you should remember that these are only subtle elements that can aid you in reducing confusion on the forms.

  • Use Separate Fields: When creating a form, make sure you use a separate field for each piece of data or address information. However, these fields should only include the audience’s data based on your unique requirements.
  • Use Easily Identifiable Labels: As mentioned before, proper labeling of fields is an effective way to minimize confusion. So, instead of using confusing terms like “address line 2”, try using more accurate labels like “Additional Address Info.” Proper labeling is clear, valid, and explains what the user needs to write in each field.

Three UX Design Aspects You Should Consider For Address Line 2

As mentioned before, hiding the address line 2 is an effective way to minimize confusion on online forms. But, don’t make the mistake of ignoring the design aspects of implementing such a feature. If the design implementation is flawed, then address line two fields may turn useless on the form.

Consider the following three UX implementation details for address line 2 in your online forms.

1. Make Every Other Field Distinguishable

Whether the address line 2 field is expanded or collapsed, the rest must be easily distinguishable. It means you should explicitly denote any field other than the optional address line 2 field through an attractive design element.

The user is likely to be dazed and confused on an online form that does not clearly distinguish optional fields from mandatory ones. It also increases the risk of the user running into a “Field is required” validation error.

Users who access the online form through a mobile device have an even more considerable risk of running into usability issues. Hence, you should use design elements to mark or emphasize the mandatory fields on online forms.

2. Make Links a Part of The Keyboard Tabbing Flow

Have you ever noticed that you can press the tab button to shift the focus to the following field once you are on an online form? If yes, you would have noticed that pressing the tab button doesn’t always change the focus to the right field.

So, if you are using links for hiding the address line 2 field, you should make it a part of the keyboard tabbing flow. However, you don’t have to include links for help and tooltips in the keyboard tabbing sequence.

It means that upon pressing the tab button, the user should navigate to the address line 2 field. However, if the tab button navigates to secondary links like help or tooltips, the user experience can become very disruptive.

Even The Seconds Matter

Suppose the user uses tabbing to navigate themselves and they arrive at a secondary link. Let’s also assume that the secondary link they navigated to is the “Help” link. The user could get stuck in the “Help” link for several seconds or maybe even minutes.

Here, the user gets stuck while filling the form even after using the tab button for easy and fast navigation. Such a situation can discourage the user from filling the rest of the form

Most users will never need the help, and forcing them to go to the help link unnecessarily can cause friction in the user experience. So using the justification that some users might actually need help is not valid as the potential friction it can create is much greater.

Your best bet is to come up with a well-thought-out custom tab order for secondary links like help. You must also let the customer skip specific items through tabbing and ensure a faster way to fill forms. Even saving the user seconds in navigation can help you boost the user experience.

3. Style The Expandable Link “Address Line 2”

If you include an expandable link for address line 2, it must be easily understandable that the link is expandable. Unless the user knows that the link expands into an additional form field, the link will be useless to the users who need it.

So, a safe practice would be to place the link right below the “Address Line 1” field. You can also set the link right beside the “Address Line 2” field. Also, you should also add an indicator for the field such as “+” or “*” and terms such as “add.”

Why You Should Not Include The Address Line 2 Field on Online Forms

Including an “address line 2” field has become standard practice when developing an online form. However, the address line 2 field is rarely necessary on address forms. Therefore, including it is more of a safety measure than a necessity.

We also know that the address line 1 and 2 in an online form causes numerous confusions. Therefore, there are several reasons for companies to rethink using the “address line 2” field in their online forms. Below are some of the significant drawbacks of the second address line and why you should consider removing them.

Splitting of Address Data

The presence of a second address line usually ends up causing the user to split up their address information. Also, the users may split the address however they deem it fit, and there is no way of telling how the user will break the data.

Sometimes the user may only include the starting of the address in the first address line. Other times the user may split the address right in the middle. Additionally, the same user could split up their address differently for different online forms.

Parsing Becomes Hard And Inconsistent

It is practically impossible to determine how a user would split up the address data. Hence, there is a chance that managing the address data obtained through online forms will become increasingly difficult. Furthermore, even an automated system may not help you with the data processing as there is no recognizable pattern.

It is also possible that the user provides too much information using the address line 2 field. For example, they could provide you with the nearest landmarks and even special instructions to fill up the space. As a result, parsing becomes complex and inconsistent.

Suppose if a user mixes up their Name in the second address line or misplace the apartment number on the address line. An address validation system can not process addresses that vary too much from the original address.

Using an advanced address validation tool like PostGrid, you can parse and standardize your addresses. Unfortunately, there are many ways the user can fill the address line 2. Therefore it also has a higher chance for error. Although PostGrid can help you in many cases, its accuracy may be affected if the variation from the original address is too significant.

Mistakenly Enter Alternative Address

A common misconception the users have upon seeing the “address line 2” field is that it is for providing an alternative address. So it is not surprising for businesses to see that their prospects have provided two addresses instead of one.

What usually happens is that the user enters their home or primary address in the address line 1 field. Then the customer sees the “address line 2” field and thinks they need to provide a secondary address. And hence, the customer ends up providing a secondary (office) address in the second line.

In this case, two complete addresses are accurate and deliverable by the USPS. Hence, even using an advanced address verification system, it can not determine the actual intended destination.

Hinder Your Business Processes

By now, it is clear that the billing address line 2 field can lead the users to confusion. We also know now that this confusion can cause the customers to provide complex address data. Therefore, there is a good chance that the input data you collect through online forms need to be processed repeatedly.

Having to process the data multiple times takes effort and time, even if you are using automation. You may very well end up trying to separate the good and bad data throughout various business processes. The best way to avoid this is to ensure the quality of data right at the collection point.

Should You Get Rid of Address Line 2 Field Altogether?

Whether or not to get rid of the address line 2 field on online forms is not an easy question to answer. On the one hand, you can’t just ignore the users who might need the second address line. But, on the other hand, it can confuse and disrupt a fluidic user experience for most people.

Additionally, there is a much higher chance of getting bad data from the input point when using an address line 2 field. So, by the end of it, address line 2 does more bad than good to your business. This situation requires an advanced solution that can ensure you get quality data from the point of input. So as long as you can ensure address data quality, you may use the address line 2 field on online forms.

How to Solve Address Line 2 Issues Using PostGrid?

The best way to bypass the issues caused by the address line 2 field is to ensure data quality. Hence, the only question you should be asking is how you can ensure the quality of data? And more importantly, how can you provide it at the point of collection?

Now, you could try many strategies to ensure data quality, such as using a descriptive copy, highlighting the mandatory fields, etc. However, despite having all of these measures, there is still a chance for error or bad data.

Address Autocomplete

PostGrid’s address verification API comes equipped with a ton of features. But, the one that requires your attention the most is the Address Autocomplete feature. Why? Because it is the key to ensuring the quality of data right from its point of collection.

The Address Autocomplete feature enables your users to type in their addresses and suggest verified addresses in real-time. Addresses indicated by PostGrid are accurate and verified ones that come straight from the USPS’s official address database.

The system analyzes the user’s text and uses location detection to suggest the most accurate address. Therefore, you can collect quality data from the users and significantly improve the convenience of filling up an online form.


The address line 2 field is still a gray area for almost all users and most people that create online forms. Although the second address line is supposed to help users provide their complete address data, it often ends up doing the opposite.

Street address line 2  field is confusing and can collect up complex or flawed address data. Instead, consider using advanced tools like PostGrid If you want to ensure quality data from the point of input.

PostGrid’s address verification API comes equipped with an Address Autocomplete feature. It enables you to ensure address data quality at the data collection point by suggesting validated addresses in real-time.

Additionally, you may use the PostGrid address validation API to validate and standardize your existing address database. PostGrid’s system even allows bulk address verification so you can ensure data accuracy within a matter of seconds. 

Ready to Get Started?

Start transforming and automating your offline communications with PostGrid