6 Best Locking Mailboxes Residential of 2021

What if your most important letter or document is theft or lost from your mailbox?

It would be disastrous sometime!

So, are you worried about the security and safety of your mail? Want to prevent mail identity theft in your mailbox?

Then, to keep your mail safe, a secure and heavy-duty locked mailbox is the right choice for you.

Hundreds of locking mailboxes are available in the market that claim to be secure. But what are the best locking mailboxes for 2021? Can you trust that your important correspondence is protected and safe in your mailbox?


Check out our 6 best lockable mailbox review to pick the trusted and secure mailbox. These are the best product at the best prices and with the best services.

Keep reading to find the best lockable mailbox for you.

Comparison Chart

In A Hurry? Check Out the Top 6.

Best Locking Mailbox Residential in 2021

Best Locking Mailbox Residential

1. Best Curbside Locking Mailbox – Mail Boss 7506 Mail Manager (Black)

Top Features

  • Galvanized welded steel construction
  • Innovative baffle door
  • Patented “Anti-Pry latch” lock

We start our reviews with this U.S. Post Master Approved mailbox from Mail Boss. If you’re looking for a solid-built, durable, reliable, yet affordable mailbox, then this product is for you.

Mail Boss 7506 is perhaps one of the best-reviewed mailboxes on the market. It’s also the best-rated mailbox as it holds an average score of 4.6 out of 5.0 based on over 1125 customer reviews at the time of writing.

You can mount this curbside style locking security mailbox on a short wooden pole near your house. It includes innovative design baffle door that deters fishing and prying. Moreover, it accepts small packages, parcels and a box of checks. The patented “anti-pry latch” lock system prevents leveraged entry with a screwdriver.

It uses high-grade craftsmanship throughout. This heavy-duty stainless steel mailbox is made from 14- and 16-heavy-gauge galvanized welded steel to offer you the ultimate in security and safety. The stainless steel hinges not only enhance its durability but also make it easy to use.

The installation of this mailbox is also a breeze. The patented Fast-Trak(R) mounting plate let you install it in minutes with ease. Additionally, the package includes 3 keys, concealed outgoing mail clip, 12-disc wafer lock and installation hardware.

This mailbox is certainly built to last, coming with a limited lifetime warranty against manufacturer’s defects. Finally, it’s available in three more attractive colors- white (Mail Boss 7507), bronze (Mail Boss 7508) and granite (Mail Boss 7505).

Overall, this best wall mount mailbox is a top option for full-service residential mailbox.


  • Innovative design
  • Easy to install and use
  • Solid-built, heavy-duty
  • USPS-approved


  • Not waterproof

2. Best Locking Package Mailbox – Mail Boss 7206, Black

Top Features

  • Electro-galvanized steel construction
  • 12-wafer disc lock
  • “Anti-pry latch” locking mechanism
  • Patented Fast-Trak mounting plate
  • Stainless steel hinges
  • Powder-coated finish

This Mail Boss 7206 mailbox comes with nearly the same features as our #1 choice- Mail Boss 7506. So, further briefing isn’t necessary. As you’ve already found out the top features of the 7506 model, you should understand every basic of this USPS approved locking mailbox 7206.

However, for your remembrance, the top features of the7206 that are similar to 7506 have been quoted above.

One thing that should be mentioned about 7206 is with 40 pounds weight it’s heavier than 7506. And its dimension is 21.5 x 12 x 16.5 inches. Furthermore, Mail Boss 7206 is more expensive than those two models.

Another point is customer satisfaction; this model is somewhat down concerning the customer rating with 4.3 out of 5 at the time of this review writing.


  • Large capacity
  • Strong and durable
  • Easy to install
  • Weather-resistant
  • USPS approved


  • Somewhat expensive

3. Best Quality- Mail Boss Curbside 7105, Granite

Top Features

  • Galvanized steel construction
  • “Anti-pry latch” locking system
  • Patented Fast-Trak Mounting Plate
  • 12-wafer disc lock with laser cut key to access

Let’s come to our third best lockable mailbox of our list, Mail Boss Curbside 7105.

Produced in the USA, Mail Boss mailboxes are the most secure and efficient mailbox available. And this 7105 model is no different. It’s one of the latest and safest anti-theft mailbox equipped with advanced technology. It comes with many user-friendly features that have made it popular among the users.

The electro-galvanized (12- and 14- gauge) steel construction body of the 7105 ensures the longevity and long-lasting protection of the mailbox. It’s impact-, vandalism- and weatherproof.  What’s more, it features a powder-coated finish that gives the mailbox shiny looking. It also makes mailbox wet- and water- related corrosion resistant.

Importantly, the “anti-pry latch” locking reinforcement of this mailbox prevents any forceful entry. The chrome-alloy steel made hook helps to enhances safety. This indestructible mailbox is also equipped with “12-disc wafer lock” mechanism (high-security) with 3 laser-cut keys. It’s almost impossible to break the lock even with a crowbar.

When it comes to installation, this bad boy is one of the best post mounted mailboxes. The package includes everything that you may need to install it. Furthermore, it features the revolutionary Fast Trak Mounting technology. This advanced mounting system allows you to install the unit in minutes.

It’s available in three more colors- bronze (Mail Boss 7108), black (Mail Boss 7106), and white (Mail Boss 7107). In fact, except the color, there is no significant difference between them. So, you can buy one according to your house outlook and your test.

In summary, Mail Boss 7105 has every quality to be considered as the best choice mailbox.


  • Approved by the USPS
  • Strong and durable structure
  • More reliable
  • Easy installation
  • Generous storage space for mail
  • Weather resistance
  • Lifetime limited warranty


  • Somewhat heavy

***To Be noted

12- and 14- gauge steel is stronger than any 14- and 16 gauge steel made mailbox.

4. Best Heavy Duty Mailbox- Architectural 6200B-10 Oasis Classic

Top Features

  • 16 and 18 gauge galvanized steel
  • “Anti-pry latch” reinforcement
  • Fully powder coated
  • Patented hopper door

Are you living in an area where the weather is mostly rough? Looking for an anti-corrosive as well as a weather-resistant mailbox? Then, Architectural 6200B-10 mailbox is perfect for you.

Architectural Oasis Classic an amazing, heavy-duty locking mailbox for residential use. This elegant mailbox has been widely accepted all around the world.

This best locking residential mailbox is spacious overall. Its storage compartment has 34% larger capacity than any mailbox of its class. It’s a real deal for accommodating your received mails up to 4 weeks subject to load. The unit is more efficient to receive the smaller to large parcel and packages measuring up to 10 in. x 4 in. x 3 in. or 10 in. x 8 in. x 2 in.

A reliable cam lock will secure your mails. Additionally, the access and delivery doors are rubber sealed. So, you don’t need to be worried about the damage to your valuable documents and mails.

It comes with stainless steel hardware and corrosion-resistant materials. The 16- and 18 gauge galvanized steel construction ensures its durability and long life. What’s more, the powder-coated finish stands up to rust and wet weather condition.


  • Large interior compartment
  • Patented design
  • Solid built and reliable
  • Anti-corrosive, rust-proof
  • Easy to use
  • Tamper-, weather-resistant
  • Easy Post or Column Installation
  • Postmaster General approved


  • Front Access only
  • Quite big, so looks bulky
  • Wider incoming slot

5. Best Roadside Mailbox-Salsbury Industries 4325

Top Features

  • Made entirely of aluminum
  • Front and rear access locking door
  • Durable powder-coated finish
  • An outgoing mail tray
  • Adjustable signal flag

Next, we have this package mailbox from Salsbury Industries, who has excelled in the field of manufacturing since 1936. It’s also an ISO 9001: 2008 certified mailbox company.

Salsbury Industries 4325 is an excellent locking rural mailbox with rear access. Of course, it also features front access and rear and a front locking door with keys (two keys for each door). 

This security mailbox has three distinct sections. It includes an outgoing mail tray which is on the top of the box. Beneath that, there is the incoming mail deposit section where the mails are collected through a non-locking access panel on the front.  And, on the bottom, there is a large section for incoming mails to keep them secured under key and lock.

Designed in the USA, Salsbury 4325 rural roadside mailbox is the best-quality which is entirely made of aluminum. The powder-coated finish is rustproof that adds durability. What’s more, it’s available in four colors: black, white, silver and green.

When it comes to installation, you can mount it on posts and in columns, masonry or walls. The box is weatherproof.  That means it’ll keep your mail dry. So, you don’t need to be worried about the damage of your valuable letters.

In short, Salsbury Industries 4325black is a decent mailbox for security and durability.


  • High-quality
  • Easy to mount
  • Weatherproof
  • U. S. P. S. approved
  • Solid construction and sturdy
  • Lightweight and durable


  • Small to accommodate magazines and large envelopes
  • No installation hardware comes with the unit

*** To be Noted

One of the biggest concerns about security mailbox is whether the mail carrier uses the mailbox correctly or not. If not, there is potential that the thieves can access your mail without much effort. So, if your mail carrier knows how to use a mailbox, your personal information coming and going through the mail will remain safe.

6. Best Budget-Friendly- Gibraltar Mailbox Wall Mount, Mailsafe MSK00000

Top Features

  • Aluminum and plastic materials
  • Heavy-duty access door
  • Sturdy, locking compartment
  • Cam lock and two keys

Here’s a very affordable Medium Capacity Wall-Mount Mailbox from America’s One of the Leading Residential Mailbox Manufacturer Gibraltar. It’s a smart choice for securing your incoming mail. It’s ideal for use as a secure drop-box or at your home.

Let’s come to know detail about this best budget-friendly option Mailsafe MSK00000.

Mailsafe MSK00000 Offers medium capacity for deliveries.  The large brushed aluminum access door makes delivery of magazine, envelopes, mails and other items easy. Of course, the delivery contents are protected by heavy-duty access door and sturdy cam lock. It also has a deep storage capacity to receive.

Each mail safe comes with two keys to allow easy access to you and your friend. It also features an internal pickup tray to store outgoing mail outside.

The Gibraltar Mail safe mailbox comes with a crisp, clean design. Made of heavy-duty plastic and aluminum materials, this mailbox provides the utmost in durability and strength. The powder-coated finish makes it rust-resistant and durable.

This Wall-Mount Mailbox is easy to install onto the home’s exterior. The package comes with all mounting hardware. It also includes an outgoing mail flag and easy-to-follow instruction guide.

If you need a highly-secured medium-sized mailbox, you can depend on this best wall mount mailbox to meet your needs. For secured peace of mind get this Gibraltar Mailboxes Mailsafe box today!


  • Medium size capacity
  • Crisp, clean design
  • Easy to install
  • Rust resistant


  • Not perfect to use in an area where theft is a real issue


This is all about our 6 best locking mailbox reviews.

We’ve tried our best to help you to find out the best option/options from numerous mailbox manufacturers and huge availability.

We’ve focused on every single issue that might be important to know about each locking security mailbox.

Don’t worry about mailbox vandals and mail thieves again!

Secure your mail and important documents today right now!

Thanks for reading our best mailboxes reviews.

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