
In the United States, the US Postal Service defines a street address as a unique identifier for a specific location, often including a house number and street name.
A street address is typically required for mail delivery and package shipping, and it's usually the address used for online orders and deliveries.
The key difference between a street address and a mailing address lies in the level of specificity. A mailing address can be a post office box or a general location, while a street address is a precise location on a specific street.
For example, a mailing address might be a PO box at a local post office, whereas a street address would be a specific house number on a street like Main Street.
What Is
A street address is a specific address that includes the house number, street name, and sometimes an apartment or suite number, allowing mail and packages to be delivered to a specific location.
Street addresses are usually written in a standardized format, such as "123 Main St" or "456 Elm St Apt 101".
A street address is not the same as a mailing address, which may include additional information like a city, state, or zip code.
The city and state are not always included in a street address, but they are necessary for a mailing address.
A street address is often used for navigation and directions, while a mailing address is used for sending mail and packages.
Physical vs Mailing Address
A physical address is tied to a specific geographic location, including details like street name, number, and possibly an apartment or suite number. It's essential for legal, tax, and regulatory purposes, establishing a definitive location for ownership, zoning, and jurisdictional matters.
A mailing address, on the other hand, is where correspondence is sent and may not necessarily be the location where one resides or works. It can be a Post Office box, a private mailbox at a commercial receiving agency, or even a suite in a large office building designated solely for mail collection.
Here are the key differences between physical and mailing addresses:
- Location Specificity: Physical addresses are tied to a geographic location, while mailing addresses are where correspondence is sent.
- Legal and Business Implications: Physical addresses are crucial for legal, tax, and regulatory purposes, while mailing addresses might be used for privacy reasons or logistical efficiency.
- Flexibility and Function: Physical addresses remain constant, while mailing addresses can be changed based on the recipient's needs and preferences.
- Use in Communication: Physical addresses are often required for formal documentation and legal processes, while mailing addresses are used for daily mail and package deliveries.
In the USA, physical and mailing addresses have different standards, with physical addresses describing a geographical location and mailing addresses governed by U.S. Postal Service standards for mail delivery.
What Is Mailing
A mailing address is not just a physical location, but a specific address where mail is delivered. It's a crucial aspect of business operations, as it's where companies receive communication, legal documents, and packages.
In the USA, there are two standards for addresses: physical and mailing. A physical address describes a geographical location, while a mailing address is governed by U.S. Postal Service standards for mail delivery.
A mailing address can be a Post Office box, a private mailbox at a commercial receiving agency, or even a suite in a large office building designated solely for mail collection. This flexibility is vital for businesses, allowing them to manage their mail more efficiently.
A business may operate from a physical location in one area but use a mailing address in another to keep their mail centralized and systematic. This separation of physical and mailing addresses provides flexibility and maintains the flow of mail and packages.
Physical and mailing addresses might be the same, or they might not. To understand the difference, it's essential to know that a mailing address is specifically designed for mail delivery, whereas a physical address is a geographical location.
Physical vs Mailing
In the United States, there are two standards for addresses: physical addresses and mailing addresses. A physical address describes a geographical location.
A mailing address, on the other hand, is governed by U.S. Postal Service standards for mail delivery. This means that a mailing address can be a Post Office box, a private mailbox at a commercial receiving agency, or even a suite in a large office building designated solely for mail collection.
Physical addresses are crucial for legal, tax, and regulatory purposes, establishing a definitive location for ownership, zoning, and jurisdictional matters. A mailing address, however, might be used for privacy reasons, convenience, or logistical efficiency, allowing for a centralized collection point for mail and packages.
A physical address remains constant, representing a fixed point on the map, whereas a mailing address can be changed based on the recipient's needs and preferences. For businesses, a separate mailing address can help in managing mail more effectively and maintaining a professional image.
Here are the key differences between physical and mailing addresses:
A physical address can receive unrestricted mail and parcels from private carriers other than USPS, such as UPS, FedEx, DHL, and Amazon. In contrast, some mailing address types, like P.O. boxes, may have delivery restrictions.
Impact on Services
The impact of mailing addresses versus street addresses on services is more significant than you might think. A street address is essential for physical delivery of goods and services, where couriers need a precise location.
Incorrect or imprecise addressing can lead to delivery delays or misplacement, especially when it comes to delivery and shipping. This is because mailing addresses are used for sending bills, letters, and non-physical deliveries.
For legal and official documentation, the registered address - often a street address - is legally significant for a business. It's where official correspondence from government bodies, legal entities, and stakeholders is sent.
Here are some key differences in how mailing addresses and street addresses are used by various services:
- Delivery and Shipping: Street address required for physical delivery, mailing address for non-physical deliveries
- Legal and Official Documentation: Registered address (street address) for official correspondence, business address for commercial activities
- Service Provisioning: Street address required for utility services, emergency services, and public administration
- Business Operations: Street address (registered address) crucial for establishing a legal presence and taxation
The mailing address vs street address debate affects various aspects of service delivery, legal compliance, and operational efficiency. Understanding the nuances between a business address and a registered address is vital for ensuring accurate and effective service provision and business operations.
Street Address
A street address is a type of physical address that can receive mail and parcels from private carriers like UPS, FedEx, DHL, and Amazon.
Unlike some mailing address types, street addresses don't have delivery restrictions, making it easier to receive packages from a variety of sources.
Having a street address can be especially helpful if you need to receive packages from multiple carriers at the same time.
Legal and Valid Addresses
A properly formatted address is crucial for secure delivery of postal mail. According to USPS Pub. 28, all you need to do is ensure a properly formatted address in the first and second lines with the physical street address listed first.
The USPS system will standardize the address as usual, detecting any invalid parts and assigning them accordingly. For example, if Address line 1 and Line 2 are combined, Address Guard will properly separate out the content.
The USPS system will add "Po Box" at the beginning and assign it as address line 1 if a PO box address is combined with a physical address.
Legal Use
You can use a PO Box as your mailing address, but it cannot be legally used as your physical address. You can't use a PO Box as your driver's license address, credit card billing address, or any other personal identification information.
Using a PO Box is a common practice for receiving mail and packages, but it's essential to understand its limitations. You can't rely on a PO Box as a permanent address for official purposes.
In some cases, a PO Box can be a convenient solution for receiving mail, especially if you're renting or don't have a stable physical address.
Valid Format

A valid address is crucial for mail delivery, and it's surprising how often people get it wrong.
To start with, a valid PO Box address needs to begin with the words "PO Box".
Follow it with the relevant box number, usually a 2-5 digit number. This is a crucial part of the address, as it helps the postal service deliver your mail to the correct location.
Don't use punctuation after "PO Box", so write "PO Box" not "P.O. Box".
Writing Invalid & Valid Addresses in One Line
Writing Invalid & Valid Addresses in One Line can be a challenge. The USPS system will first standardize the address as usual, moving the invalid part of the address to a separate location.
According to USPS Pub. 28, a properly formatted address should have the physical street address listed first, followed by the postal address in the second line. This ensures secure delivery of postal mail to its intended destination.
If you combine the first and second addresses, as in "Po Box 123 Orlando", the USPS system will detect this and move the invalid part of the address to the second location, standardizing the address.
USPS Pub. 28 states that you only need to fill out both lines correctly to ensure secure delivery of postal mail. This is a simple yet effective way to guarantee that your mail reaches its intended destination.
Delivery and Services
A street address is essential for physical delivery of goods and services, where couriers need a precise location.
For example, if you're expecting a package, a street address is necessary for the courier to find your doorstep.
Incorrect or imprecise addressing can lead to delivery delays or misplacement, which can be frustrating for both the sender and the recipient.
Here's a breakdown of the differences in addressing for delivery and services:
By understanding the nuances between a mailing address and a street address, you can ensure accurate and effective service provision and business operations.
Sending Mail via UPS and FedEx
Sending mail via UPS and FedEx can be a bit tricky, especially if you're trying to send it to a PO Box. UPS and FedEx do not deliver packages to a PO Box.
You can use a PO Box street address, also known as a PBSA, to send packages to a PO Box address. This format combines the PO Box number and the street address of the specific post office.
To ensure you have a legitimate and working PBSA, verify it with an advanced address verification tool.
Delivering Mails to PO via USPS
To deliver mail to a PO Box via USPS, simply switch the address lines on your envelope and list the PO Box number at the top. This is the preferred method for sending mail, and it ensures delivery to the PO Box.
USPS allows for two formats when listing both a PO Box and a physical address: one with just the street address and another combining both PO Box and physical location together. This way, you can include both addresses on the envelope.
The USPS offers a more cost-efficient delivery service for PO Boxes than street addresses, saving them money and giving customers access to their postal mail in one central location. This efficient system is a major advantage of using a PO Box.
To ensure delivery to a PO Box, prioritize it as the first line of address on the envelope. This way, your USPS mail carrier can guarantee that your postal mail will be delivered to the correct location.
Postgrid's Verification Services
PostGrid's Verification Services can verify 200k addresses simultaneously, providing quick results and saving time. This is especially useful for businesses with large mailing lists.
PostGrid is CASS-certified and uses NCOA data files, which enables them to cross-check addresses against the USPS authoritative database.
You can use PostGrid's services to parse, standardize, and verify mailing lists within seconds. This makes it easy to format street addresses correctly.
Some of the features of PostGrid's verification services include geocoding, reverse geocoding, and international address verification. You can also use their restful API and native integrations to streamline your address formatting process.
Here are some of the features of PostGrid's verification services:
- Geocoding
- Reverse Geocoding
- Restful API
- International address verification
- Native integrations
- Autocomplete
Frequently Asked Questions
What is the difference between a permanent address and a street address?
A permanent address refers to your residence location, while a street address is a specific mailing address where you receive mail, often a physical location like an apartment or house.
Sources
- https://commercialproperties24.com/difference-between-street-address-and-mailing-address/
- https://www.smarty.com/blog/mailing-address-vs-physical-address
- https://www.postalytics.com/blog/po-box-vs-street-address/
- https://addressguard.io/po-box-vs-street-address-delivering-postal-mail-via-usps/
- https://www.postgrid.com/formatting-street-addresses/
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