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Best Locking Mailboxes for Residential: Security Mailbox Reviews & Ultimate Guide for 2020

Last updated on September 10th, 2020

A simple and powerful way in which we can protect our names, information, and property is by physically locking those things down where we can. A locking mailbox is a fantastic way to ensure that no person besides the key holder is able to access any information or mail from your mailbox.

We’ve analyzed locking mailboxes available on the market for things like shape, their strength of security, sturdiness to weather, etc. to create a list of comprehensive reviews.

Most options are mounted, although we’ve covered one mailbox that is a stand alone, curbside model. To find the absolute best locking mailbox for you and your needs, continue reading below!

Comparison Locking Mailboxes

Mail Boss 7506 Mail Manager

Mail Boss 7506 Mail Manager Curbside Locking Security Mailbox, Black
  • Our Rating
  • Mail Boss 7506 Mail Manager Curbside - Top Rated Locking Mailbox.

    14- and 16-gauge galvanized welded steel construction defends against vandalism.

    Demension: 21 x 10.8 x 11.2 inches.

Architectural Mailboxes 6200B-10 Oasis

Architectural Mailboxes 6200B-10  Oasis Classic Locking Post Mount Parcel Mailbox with High Security Reinforced Lock
  • Our Rating
  • Architectural Mailboxes 6200B-10 - Most Secure Locking Mailbox

    Body constructed of heavy 16 and 18 gauge galvanized steel fully powder coated prior to assembly for durability and long life.

    Demension: 18 x 11.5 x 14 inches.

Gibraltar Mailboxes Mailsafe

Gibraltar Mailboxes Mailsafe Medium Capacity Aluminum Black, Wall-Mount Mailbox, MSK00000
  • Our Rating
  • Gibraltar Mailboxes Medium Capacity Wall-Mount Mailbox - Budget Pick

    Aluminum construction provides strength and durability, and will never rust.

    Demension: 8 x 13 x 16 inches.

10 Best Locking Mailboxes:


Mail Boss 7506 Mail Manager Curbside Locking Security Mailbox, Black


This large black curbside mailbox comes in 3 other color options: bronze, granite, or white. It is a USPS approved mailbox with locking security. It has a baffle door that deters criminals from digging around in your box. This could be the best secure mailbox for home.

Customers are saying the mailbox is easy to install and is very secure for the price, but mail is not 100% protected against the weather. There have also been a few reports of the mail being jammed and the locking mechanism not working properly.


  • Baffle door that takes small packages and parcels, including a box of checks
  • Galvanied welded steel construction stands strong against vandalism
  • Patented anti-pry lock latch mechanism prevents leveraged entry using a drill, pick, or screwdriver.
  • Comes with a concealed clip for outgoing mail, hardware for installation, and 3 keys

Pros / Cons

  • Easy installation
  • Very secure
  • Accepts small packages
  • Does not protect well against a pry bar
  • There is potential for heavy rain to drip in


If you need a solid mailbox that you can purchase on a budget, this is the box for you. This mailbox is stronger and more sturdy than your average mailbox and will deter most criminals from trying to fish around for your packages. Overall it’s a pretty good and affordable buy.


Architectural Mailboxes 6200B-10 Oasis Classic Locking Post Mount Parcel Mailbox with High Security Reinforced Lock


This big black mailbox is great for the catalog and online shopper. The dimensions are 18-inch diameter x 15-inch height x 11.50-inch width inches, and it is made of strong 16 and 18 gauge galvanized steel.

This black steel mailbox is 23 pounds and needs Adapter plate 7530-10 for a 4×4 wood post installation. This product comes in either a single unit or in bulk as a 4 pack or 5 pack.

Customers who have purchased this product are happy with its abilities to keep the mail safe and dry, but over the years there does seem to be rust building up on the bottom and the design seems to be a little weak. Some customers have reported trouble with the lock and hinges after installation.


  • Rubber seals to protect deliveries from harsh weather
  • It is made from stainless steel and corrosion resistant items

Pros / Cons

  • Heavy duty mailbox
  • Great for packages and parcels
  • Tends to deter most criminals
  • Can be opened with either a prybar or strong screwdriver
  • Locking mechanism is not that great


For not big amount of money you can own a heavy duty stainless steel mailbox. Keep your mail dry and deter thieves from trying to fish out your packages. Get one of the best locking mailboxes today and keep your mail safe!


Gibraltar Mailboxes Mailsafe Medium Capacity Aluminum Black, Wall-Mount Mailbox, MSK00000


This residential mailbox comes in black or white and is made in the USA. Its a wall-mount mailbox with aluminum construction. It is rust proof as well as strong and durable. The dimensions are 16-3/4-inch width x 8.38-inch diameter x 13-1/4 inch height.

Customers who have purchased this box really seem to enjoy it. They say that this box is higher quality than what you will find on the market. Purchasers report that they have used this box for years and it is durable and safe even for holding rent checks.


  • Heavy duty access door
  • Two keys and cam lock

Pros / Cons

  • Nice size mailbox to hold lots of mail, larger parcels and packages
  • Curable equipment can last for years
  • Great weatherproofing design
  • Can get warped in weather over time
  • Really small hands might be able to fit in the slot


If you’re looking for a heavy duty mailbox that will hold all of your mail and larger items, this is the box for you. For very small price you can invest in a box that will last you for years. Keep you mail safe by purchasing what most customers are calling the best secure residentail mailbox on the market!

Step2 531700 MailMaster StoreMore Mailbox


This large mailbox is built to take on large loads of mail. The removable floor gives you a mailbox with dimensions of 28-inch height x 6.25-inch width x 13.25-inch diameter for storage. The access to your bulk mail is hidden and has a locking door.

When you’re ready to get the mail the front opens downward for quick and easy access. There is also access in the rear to this large locking mailbox.

Customers who have bought this mailbox say it’s a great product for the price. Installs really easy and looks good right out of the box. One common concern is the lock needed to be adjusted a little.


  • Two keys
  • Adress numbers for installation
  • Mounting Hardware

Pros / Cons

  • Can be mounted easily to a 4×4 post
  • Access to bulk mail has hidden door
  • Holds more mail for over a longer period with extended bottom
  • Lock hole has to be shaped a little for the lock to fit properly


This mailbox is great to look at and for securing your mail. Thieves will never poke around the non obvious mail section which gives you a great advantage having a hidden door. You can have the perfect large capacity mailbox to hold all of your bulk mail for an extended period!


Mail Boss 7171 Townhouse Locking Security Wall Mount Mailbox, Granite


This lovely townhouse mailbox comes in black, bronze, galaxy, granite, and white. It is locking mailbox with a large capacity and is made from 14 and 16-gauge electro-galvanized steel. It has stainless steel hinges with a powder coated finish which is great for weather resistance.

Customers are very happy with this locking mailbox. They are reporting that is very secure and keeps the mail nice and dry after a downpour. They also like the design of this waterproof locking mailbox. It’s convenient that the lock opens easily with one hand, and the box can hold a lot of mail.

It’s great for envelopes and magazines.


  • Patented anti-pray locking latch
  • 12-wafer disc lock
  • 3 Keys
  • Reflective address numbers
  • 4 Lag bolts and drill bit

Pros / Cons

  • High quality
  • High security
  • Durable
  • Slot is a little small for mail order packages


If you’re looking for dependable home mailboxes with locks this is the product for you. Get the security you need for your mail, and keep it dry for affordable price!


PEELCO Modern Rust & Weather Proof - Vertical Wall Mount Locking Outside Mailboxes with Unique Residential Mailbox Key, Gray


This modern locking mailbox comes in black, gray, stainless steel, stainless steel-black, and white. It is a .6mm thick steel durable and secure mailbox that will keep your mail from being replaced, destroyed or stolen.

Customers who own this mailbox are reporting that the locking mailbox looks good and the quality is ok, but the security isn’t what they expected. Some are reported they keep it locked while they’re home and only lock when they’re away for a while.


  • Magnetic lid for access mail with and without a key
  • Rust resistant material
  • All hardware and 4 keys included
  • Contemporary and elegant design with soft close

Pros / Cons

  • Easy installation
  • Good looking mailbox
  • Slight opening in the bottom
  • Security isn’t as expected


If you’re in the market for a nice looking mailbox that will be a great addition to your home, this is the best one mailbox for you. It is very stylish and it does have a locking feature for your own sanity.


Salsbury Industries 4325BLK Roadside Mailbox, Black



This roadside mailbox comes in black, green, silver, and multi-colored. The dimensions are 12.5-inch width x 13.625-inch height x 18.25-inch diameter. This box can be mounted on masonry, a wall, a column, or a post.

Customers say this device works well as an outdoor mailbox with lock, but some are reporting that the installation can be a bit difficult. They also say that it


  • Front and rear access
  • Durable powder coated finish
  • Adjustable red signal flag
  • Outgoing mail tray
  • Front and rear locking doors with 2 keys per door

Pros / Cons

  • Works well as a locking mailbox
  • Weatherproofing works well
  • Screws may need reinforcement to prevent thief with screwdriver from getting in


This mailbox is decent for security and durability. It keeps mail dry and little hands really can’t get in there. Secure your mail today right now!


Gibraltar Mailboxes Designer Locking Medium Capacity Galvanized Steel Venetian Bronze, Wall-Mount Mailbox, DVKPBZ00


This wall-mount mailbox comes in black, black with brass, bronze with brass, bronze with satin nickel, and white. It is made in the USA with galvanized steel.

Customers who have purchased this locking mailbox appreciate the look and size for the price. They report that it is well constructed and sturdy.


  • Medium capacity, able to hold days of mail before filling up.
  • Powder coated in Venetian bronze finish to withstand all weather

Pros / Cons

  • Really pretty mailbox
  • Solid design
  • Rear of lid gets scraped on wall
  • Doesn’t come with hardware
  • It isn’t meant to be out in the rain
  • Doesn’t fit 9×12 envelopes


This mailbox is great indoors, or as a pretty box under a covered porch. If you’re looking for a stylish box that can hold a lot of mail, this can be best locking mailbox for you.


Modern Wall Mount Lockable Mailbox - Outdoor Galvanized Metal Key Large Capacity - Commercial Rural Home Decorative & Office Business Parcel Box Packages Drop Slot Secure Lock- Serenelife SLMAB04


This modern outdoor wall-mount mailbox has dimensions of 10.2-inches width x 12.2-inches diameter x 3.6-inches height. It only comes in white but it adds style to the out of your home, business, or apartment.

If you’re looking for a mailbox that will be secure and add some appeal, this mailbox might be for you.

Customers that have purchased this mailbox find it be simple and convenient. They say it’s a quality mailbox, they just wish the dropbox was a little larger. Others have reported that this box is not good for rain or snow.


  • Black powder coat for waterproofing protection
  • Door slots that allow payments, outgoing mail, parcels, and box packages to be inserted.
  • Pre-drilled holes and hardware
  • secure key lock, with two reserved key locks.

Pros / Cons

  • Easy installation
  • looks nice
  • Can’t find or recreate a lost key
  • Product is not 100% weatherproof
  • Mailslot is not wide enough to take on junk mail


This box works well if you just need something to recieve payments that is easy to mount. It is a compact and quality system for lowest price in our chart!

ALEKO USMB-03 Wall Mounted Mail Box with Retrieval Door 2 Keys and Newspaper Compartment


This silver lockbox is created from stainless steel and is a rust-proof mailbox. The dimensions are 11.9-inches length x 13.3-inches width x 3.3-inches height. It is created for outdoor use, on the front porch or roadside.

Customers who own this mailbox are reporting that it’s great quality for the price and it’s thicker than your standard mailbox. They say it’s lightweight, easy to install and works really well.

Pros / Cons

  • Easy installation
  • Adds beauty to the home
  • thin but durable
  • None


Nothing bad has been reported about this product. That makes this stainless steel locking mailbox truly one of the best on the market. It looks great, provides great security and protects the mail in the weather.

Tips on Choosing the Best Security Mailbox

When choosing a security mailbox you’ll want to purchase something that works well for your needs.

USPS approved

small locking mailbox

You want to make sure you get a USPS approved mailbox so you know that it will work well for your mailman also.

If you’re unsure about USPS approved boxes, you can check out their website for minimum standards. Your mailbox should be easy for you to use.

Easy to Use

If you don’t have the full function of both hands, you will need a mailbox that you can easily unlock and open with a single hand.

In further disability cases, you might think about getting a mailbox you can mount lower for wheelchair access or one that opens at eye level so you don’t have to worry about kneeling down.

You might also need a box that is closer to the front door instead of out by the road.


Choose a durable locking mailbox is important.

The best mailbox for you will not have a place for mail to escape, will not fall apart, and the box will be big enough to place your mail in but not your hand.


Make sure you have enough keys and make sure you get the right sized box for your mailing needs.

durable locking mailbox

Factors to Consider When Buying the Best Locking Mailbox

Size of mail:

Consider the size of the mail you plan on receiving in this locking box, if it’s packages, parcels, or best locking mailbox residentiallarger envelopes, you will need a box that is large enough to receive those types of products. Keep in mind you need a functional box so you can retrieve the packages from the box without damaging them as well.

Type of box:

Do you have specific types of incoming mail such as rent checks, flyers, or magazines? You need a mailbox that can also function as a drop box.


You need a secure locking device. You also should look for a box that can’t be pried open with a screwdriver or other device. Another key point is to make sure slender hands can’t fit in the box and grab things.


Think about where you need the mailbox placed. Do you need it to be a stand-alone box or something that can be mounted? Do you need to place it inside or outside? Interior wall mailboxes can be pretty small and may not have to be heavy duty like the ones you would place outside your home.


Do read reviews. Reviews give you great insight into what other customers experienced when using the product. They are further along than you are in the research process but they took the same initial steps. They evaluated what their needs were and they made a choice. You might find someone who has needs similar to yours and if their mailbox purchase worked well for them you might want to purchase the same locking mailbox.

Best Locking Mailbox FAQ

best secure mailbox for home

What is the recommended post size?


Post size depends on your needs. You want to be somewhat flush to your neighbors if they have a roadside mailbox as well. Most of the mailboxes we reviewed recommended a 4×4 post for mounting, but if you use an inground post, you will need some length. Make sure your inground post has a cemented base so your mailbox doesn’t float or fly away. The type of posts you’ll want to use include plastic, wood, or steel.

What if I build my own mailbox?

Building your own mailbox is fine, but you have to make sure you have a mailbox that meets the USPS standards. Meeting the USPS requirements will cost you a great deal of time and money. You can find the required specifications on the USPS website. If you need help building or installing your mailbox you can find tons of examples online.

Is there a way to guarantee anti-theft?

No. The truth is, if someone really wants to get into your box they will find a way to pry it open. Locked mailboxes are there to keep the average thief from getting in there and quickly taking your mail. There are some thieves that will roam at night and with tools. If there is a high level of mailbox theft in your area you might want to report any incidents to the local police department for extra surveillance. A good tip to avoid a chance of your mailbox failing is to pull your mail as soon as it arrives. Don’t leave it sitting overnight or for weeks at a time. Also, you can improve security around your house by putting some security cameras or lights that work with motion detection to prevent it.

Q. Is there a best weatherproof mailbox?

Manufacturers have gone to great lengths to secure some of the mailboxes, but in some cases, a tiny opening still makes a big difference. If you like a particular box but you can readily see it may have an issue with rain consider whether or not you can add something to the mailbox to prevent your mail from getting wet.

Making The Decision

Best locking mailboxes give us peace. They help us relax when we know our mail is coming because we’re not scared that someone is going to sift through and take our mail. Your mail is secure in the box while you’re away on vacation or out for a long day. The best thing to do is try to retrieve your mail more frequently if you are expecting something important.

When it comes to making your final purchasing decision, put some thought into it and then make a purchase. you don’t want the hassle of ordering the wrong box and having to send it back.

Think about what your needs are between size, type, and security, read locking mailbox reviews and narrow it down to the best one that fits your needs. Go online to your favorite vendor and purchase a locking mailbox so you can secure your incoming and outgoing mail today!