10 Best Locking Mailboxes in 2024 | Your Ultimate Mail Theft Defense

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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?

Best Locking 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 10 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.

Best Locking Mailbox Top Picks

In A Hurry? Check Out the Top Picks.

  • Best Package Mailbox: Mail Boss 7206 Master Locking Security Mailbox: With a 12-wafer disc lock, anti-pry latch locking mechanism, electro-galvanized steel construction, and innovative baffle door bin design that prevents hand and tool fishing.
  • Best Curbside Locking Mailbox: Mail Boss 7506 Mail Manager(Black): A USPS – approved durable and reliable mailbox that offers ultimate security to your mails with a 12-disc wafer lock and concealed outgoing mail clip.
  • Best Heavy Duty Mailbox: Architectural 6200B-10 Oasis Classic: An anti-corrosive and weather-resistant mailbox featuring a large interior compartment and a 16 and 18 gauge galvanized steel construction.
  • Best Large Secure Mailbox: Mail Boss Curbside 7105, Granite: Equipped with advanced technology, this mailbox is impact-resistant, vandalism-resistant, weatherproof, and user-friendly hence popular among many users.
  • Best Mid-Range: Architectural Mailboxes Elephantrunk 6900R: This mailbox is aesthetically appealing, features heavy gauge cast aluminum construction, a pry-resistant 3-point lock system, and a yellow indicator to halt deliveries.
  • Best Budget-Friendly: Gilbraltar Mailbox Wall Mount Mailsafe MSK00000: An affordable residential mailbox with a large brushed aluminum access door, sturdy cam lock, and an internal pickup tray to store outgoing mail.
  • Best Roadside Mailbox: Salsbury Industries 4325: An excellent rural locking mailbox that is easy to mount on columns or posts, made from aluminum, durable, weatherproof, and available in white, black, silver, and green
  • Best Surface Mounted Vertical Mailbox: Salsbury Industries 3504ASU: An aluminum-made top-loading vertical mailbox with 4 separate storage spaces, each with a unique cam-lock, durable, ISO 90001:2008 certified, and USPS STD 4B+ approved.
  • Best for Storage Capacity: Mailmaster Step2 531700 Storemore Mailbox: A uniquely designed mailbox featuring a heavy-duty poly construction, has a large storage capacity, rear and front doors, and hidden access door locks for extra security.
  • Best Wall Mount Mailbox: PEELCO WSPB001: Made from 0.8mm thick galvanized steel, this mailbox is sturdy, stylish, and elegant, features a power guard rail to prevent theft and a push magnetic latch for extra protection and security.

Here are the Best Locking Mailboxes in 2024

1. Mail Boss 7206 – Package Master Locking Security Mailbox

Mail Boss 7206

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

Mail Boss 7206 is your best defense to prevent mail theft.

But why is it considered one of the best locking security mailbox?

Well, several features make it far more safe against mail theft.

Firstly, the heavy gauge electro-galvanized steel construction adds strength and durability to this product. In fact, it’s one of the best high-security locking mailbox available.

Secondly, the innovative baffle door bin design prevents both hand & tool fishing. Thanks to its patented “Mail Shield” technology. Importantly, the Anti-Pry Latch Lock system of Mailboss 7206 provides real theft prevention.

The 12-disc wafer lock that comes with this mailbox is anti-drill, anti-pick that will protect your mail and parcels from thieves. Additionally, the Stainless Steel Hinges are corrosion resistant and durable.

It’s worth noting that this largest residential mailbox is also perfect for commercial uses. It accommodates bulk mail deliveries, legal-size packages and envelopes. Of course, it’s USPS approved.

When it comes to installation, this box has Patented Fast-Trak Mounting Plate that makes installing it on existing post hassle-free.

Overall, Mailboss 7206 is a quality, secure locking mailbox. For those who travel often or receive bulk mail, it’s undoubtedly an excellent option.


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


  • Somewhat expensive

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

Mail Boss 7506

Top Features

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

Next we have 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

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

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

4. Best Quality – Mail Boss Curbside 7105, Granite

Mail Boss Curbside 7105

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 5th 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
  • CONS
  • Somewhat heavy

*To Be noted

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

5. Best Mid-Range – Architectural Mailboxes Elephantrunk 6900R

Architectural Mailboxes 6900R Elephantrunk

Top Features

  • Rotating drum design
  • Pry-resistant 3-point lock system
  • “No Deliveries” indicator

This Elephantrunk Parcel Drop Box from Architectural Mailboxes provides peace of mind and aesthetic appeal with its sleek design and solid construction. It’s one of the best solutions for parcel deliveries.

This residential parcel drop box features a rotating drum design that accepts large parcels. The receptacle can accommodate multiple parcels. It also includes an outgoing partition for pick up by carrier.

The heavy gauge cast aluminum and powder-coated finish enhance its durability and long life. It features stainless steel door hinges and the door is equipped with a pry-resistant 3 point lock system with two keys.

What’s more, it features a yellow indicator to halt deliveries when you don’t want to receive parcels. Additionally, the red color finish matches most environments and adds a splash of curb appeal. This elephant mailbox is also available in three more colors: black, white and oil rubbed bronze.


  • Great looking
  • Very functional
  • Well-built and sturdy


  • The keys are somewhat tricky to work in the lock

6. Best Budget Friendly – Gibraltar Mailbox Wall Mount Mailsafe MSK00000

Gibraltar mailbox 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

7. Best Roadside Mailbox – Salsbury Industries 4325

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.

8. Best Surface Mounted Vertical Mailbox – Salsbury Industries 3504ASU

Salsbury Industries 3504ASU

Top Features

  • Aluminum construction
  • 4 mailbox compartments
  • 5 pin cylinder cam lock (with 2 keys
  • Powder-coated finish

A vertical mailbox is often a good option for multiple apartments, commercial buildings and many other applications. Salsbury Industries 3504ASU is one of the best apartment mailboxes, which is specially designed for apartment blocks.

This 4 compartment mailbox features four separate storages combined in one structure. However, some more models are available with 3 to 7 compartments to choose from. Each compartment has its unique cam lock and set of keys.

It’s a top-loading mailbox. That means, its access door unlocks the entire compartment array that drops forward for easy and fast mail loading. The access door accepts a private master lock, or USPS approved arrow lock. There is optional mail slot for outgoing mail. It also displays mail loading position.

The mailbox is entirely made of aluminum. In addition, the door of each compartment has a durable powder-coated finish to prevent it from rust or water. What’s more, it’s available in five contemporary colors- green, aluminum, bronze, brass, and sandstone. The trim and doors are also scratch-resistant.

You can mount this mailbox to any flat surface or a wall and secure with mounting hardware through the back panel. Additionally, you can stack two units high if wall space is limited. These are also available as recessed mounted.


  • Streamlined design
  • Surface mounted mailbox
  • Heavy-duty, durable
  • Ease of use
  • ISO 9001: 2008 certified
  • USPS STD 4B+ approved


  • For indoor use only (It requires shielding from direct weather conditions)

9. Best Wall Mount Mailbox – PEELCO WSPB001


Top Features

  • 0.8 mm thick galvanized steel
  • Sturdy, powerful Guard Rail
  • Titus Push Magnetic Latch
  • Soft-close lid
  • Vertical Wall Mount or Freestanding
  • 4 Spare Keys

This aesthetic mailbox will add an accent to the front wooden or brick walls of your houses and merge with architect personality.

PEELCO locking mailbox is heavy-duty which can accommodate mails and medium packages. The slot is big enough to hold all your mail, envelopes and packages. Its locking mechanism itself is a state-of-art. It comes with four spare keys, that means you, your friend, family or any trusted mailman can open it with any of its keys.

Its wide slots won’t hamper your mail delivery but still will prevent unwanted access to your received mail. Additionally, it features a guard rail, which is robust and sturdy to prevent entry and theft.

The best part of this mailbox is its Titus Push Magnetic Latch that will give you easy access and extra protection and security. This unique feature gives this PEELCO mailbox a competitive edge in the security mailbox market.

PEELCO Package Wall Mailbox is made to withstand the most extreme weather condition and even the most powerful hits. The stainless galvanized steel construction along with powder-coated finish not only makes it rust-resistant but also increases durability.

Finally, this bad boy comes with all necessary hardware for quick and easy installation.


  • Fits small to medium packages
  • Well-constructed, heavy-duty
  • Stylish, elegant design
  • Rust-resistant and weatherproof
  • DIY installation in minutes


  • The door won’t shut unless locked

10. Best for Storage Capacity – Mailmaster Step2 531700 Storemore Mailbox

Mailmaster Step2 531700 Storemore Mailbox

Top Features

  • Heavy-duty poly construction
  • Front and rear mail doors
  • Hidden access door locks

Looking for the best way to avoid the hassle of having mail held while you’re on vacation? Then, this MailMaster Mailbox comes in handy for those who travel. It’s also perfect to use both- rural and urban areas.

This mailbox comes with 28 in. height x 6.25 in. width x 13.25 in. depth dimensions. That means it’s a large container for mails! It’s compact but has a large hidden storage area that can hold up smaller packages and 2 weeks of mails.

MailMaster mailbox has rear and front doors that allow you safe mail retrieval. Additionally, it features secret access door locks for added security. For easy access, you can open the door downward.

Step2 531700 with its unique design will add a touch of class to any residential home. The stone look design makes it distinct from the rest in your neighborhood. The real stone look of this mailbox will definitely make the people passing by it stand and stare at the Mailmaster!

The heavy-duty poly construction of step2 storage ensures that it holds up to the elements. You can mount it simply on a standard 10.2 cm x 10.2 cm (4 in. x 4 in.) mailbox post. It comes with mounting hardware, two keys and address number. (Post sold separately).


  • Easy to assemble and put in the ground
  • Generous storage space
  • Easy to access
  • Stunning outlook
  • Made in the USA
  • CONS
  • Not highly- secured for mail
  • Warpy molded plastic design that needs better quality control


Due to the security issue, plastic mailboxes are not recommended where your mails and documents need high-security.


This is all about our 10 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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