Best Plastic Security Mailboxes in 2026

Daisy
Last Updated: Feb 9, 2026

At a Glance: Our Top Picks for Plastic Security Mailboxes

Step2 545200 MailMaster Plus Mailbox, Stone Gray
#TOP1
Step2 545200 Mailmaster Plus Mailbox, Stone Gray
9.8
PM SCORE
Large Mailbox Wall Mount with Lock, Decaller Modern Mailboxes for Outside, Black, 14.4" x 13" x 4.2"
#TOP2
Large Mailbox Wall Mount With Lock, Decaller Modern
9.5
PM SCORE
xydled Wall-Mount Mailbox,Heavy Duty Deposit Drop Box, Locking Metal Key Drop Box Suggestion Box with Key Lock,Secured Safe Storage Box Postbox for Home&Business Use,15x12x4 Inch,Black
#TOP3
Xydled Wall-Mount Mailbox,Heavy Duty Deposit Drop Box, Locking
9.5
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Plastic Security Mailboxes of 2026

Market Overview
Plastic Security Mailboxes Reviewed
  • Reviews Analyzed: 3252 Items
  • PM Avg. Rating: 6.2 / 10
17 Products Evaluated
  • Highest Price: $269.95
  • Lowest Price: $35.99
  • Avg. Price: $114.39

Step2 545200 Mailmaster Plus Mailbox, Stone Gray

STEP2
545200A
23.25 X 12.50 X 51.00 Inches
16.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Convenient newspaper holder keeps papers clean and dry

Front and rear access to interior compartments

Includes address numbers, mounting hardware, and post cover

Mounts easily to 4 x 4 post (not included)

Heavy-duty poly construction. Security : Non-Locking

Large Mailbox Wall Mount With Lock, Decaller Modern Mailboxes For Outside, Black, 14.4" X 13" X 4.2"

DECALLER
13.00 X 4.20 X 14.40 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Decaller 9.88

Features

· Safe and Quality : The mailbox is made by quality galvanized steel, enough secure to provide heavy duty security and sustainability with 2 keys

· Newspaper Compartment : At the bottom of mailbox, it has a rectangular shape newspaper bucket for collect newspaper

· Large Capacity : External size is 14.4" x 4.2" x 13", inside size is 11.8" x 3.5" x 9.1"

· Sturdy Lid : Lid on the top of mailboxes can protect it from rain and snow in certain extent

· Easy Installation : We provide each mailbox convenient mounting hardware and instruction for easy installation by yourself

Xydled Wall-Mount Mailbox,Heavy Duty Deposit Drop Box, Locking Metal Key Drop Box Suggestion Box With Key Lock,Secured Safe Storage Box Postbox For Home&Business Use,15X12X4 Inch,Black

XYDLED
B09VSZ8T34
14.96 X 3.64 X 9.84 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
xyd-direct 9.86

Features

【DURABLE MATERIAL】- xydled’s Drop Box is made of powder-coated heavy-duty steel to ensure durability and long life, and provide high-security protection and safe storage for your mails. The black textured surface is not only scratch-resistant and modern as well as beautiful.

【PLENTY OF STORAGE SPACE】- The safe storage box measures 15(H)x12(L)x4(W) inches, offering plenty of storage space for your emails, documents, letters, etc. The size of the opening slot is 9.1x0.47 inches.

【SAFETY STORAGE】 - The mailbox is designed to prevent fishing with a jagged metal baffle inside. It comes with 2 keys and a secure latch that can keep your letters in a safe space.

【MULTI PURPOSE USE】-Not only can this drop box be hung under a porch as a mailbox, but it can also be hung in a conference room or placed on a conference table as a suggestion box.

【EASY TO INSTALL】- xydled wall-mounted mailbox package includes mounting hardware and detailed instruction for convenient installation. It can be easily installed on the wall, suitable for commercial and residential purposes.

【EXCELLENT AFTER-SALES SERVICE】-After receiving the package, please carefully check whether the package is in good condition and the hardware complete. If hardware is missing or the product is damaged during transportation, please feel free to contact us and give us a chance to solve it for you. We are glad and committed to giving you a perfect shopping experience.

Indoor Wall Mount Mail Catcher Bag Door Slot Post Box Basket Mail Boxes Organizer Security Black (M)

MMOON-L&F
YJD-BG-1
18.30 X 12.00 X 5.50 Inches
1.32 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
MU-MOON 9.68

Features

DURABLE AND SUSTAINABLE : Mailboxes has ample space for various types of mail, including rolled magazines. Collects and holds mail from a mail slot. Fits on all horizontal mail slots.

STURDY : Mailbox be crafted with quality nylon, steel for strength and durability.

SAFE :Keeps Your Mail Safe and Secure. Eliminates Your Mail Falling on the Floor. Standing nylon baffle, this is designed to prevent from fishing or stealing private property.

EASY ASSEMBLY: Wall mount design save more space, installation's easy within few minutes following the instruction. Mounting hardware for Wood and concrete is included, suitable for indoor use.

UNIVERSAL FIT: Measuring approximately 8~11'' W x 18.3'' H, our mail slot receptacle conveniently fits ALL standard mail slots at the home or office. ATTENTION: Standing nylon baffle spacing 10.2 inches cannot be adjusted. Combe Set Instruction as shown in image 2. Or please contact with us if any question.

#TOP5

Qualarc Wf-0906A Glacial Elliptical Stainless Steel Locking Wall Mount Mailbox, Silver

QUALARC
WF-0906A
5.50 X 12.50 X 18.50 Inches
7.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

This mailbox is made with corrosion-resistant, high grade stainless steel with a Matte finish

Large mailbox size: 12.5 inch w x 18.5 inch H x 5.5 inch D will hold several days of mail

Heavy duty lock with 2 keys adds security

Incoming mail slot opening is 10.25 inch long and 1” wide and will fit most envelopes and magazines but keep unwanted hand out

Mounting hardware not included. If mounting to a masonry wall, use masonry mounting screws with masonry anchors (at least 1-1/2 inch long)

Qualarc Wf-Pm14 Summit Wall Mount Rectangular Locking Mailbox, Black

QUALARC
WF-PM14
7.50 X 15.50 X 13.50 Inches
5.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

This scratch resistant Black powder coated steel mailbox has a peaked roof

Large mailbox size: 15.5 inch w x 13.5 inch H x 7.5 inch D will hold several days of mail

Heavy duty lock with 2 keys adds security

Incoming mail slot opening is 12.875 inch long and 1.5” wide and will fit most envelopes and magazines but keep unwanted hand out

Mounting hardware not included. If mounting to a masonry wall, use masonry mounting screws with masonry anchors (at least 1-1/2 inch long)

Addresses Of Distinction Oak Mailbox & Post Kit – Black Mailbox System – Includes Address Plaque, Bracket & Mounting Hardware – Rust Resistant Metal Mailbox With Pineapple Finial

ADDRESSES OF DISTINCTION
MB OAK
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Addresses of Distinction 7.18

Features

ADDRESS NUMBERS SHIPPED SEPERATELY: Up to five 2-Inch solid brass or reflective gold address numbers are included with your purchase. Once you purchase the Oak Mailbox and Post System from Addresses of Distinction message us with your order number, your choice of brass or reflective gold, and up to 5 numbers. We will send two sets of your street numbers to place on both sides of your address plate. Our numbers are self-adhesive, so it will be simple to apply to your address plaque.

TRADITIONAL MAILBOX AND POST SYSTEM: The Oak System features a traditional American Eagle embossed on the front door. All components of this system feature a smooth rust resistant black finish. The metal mailbox measures 18.75" Long x 8.75" Tall x 6.25" Wide and sits atop the strong 6-foot tall post.

SINGLE PIECE POST FOR STURDY CONSTRUCTION: The Oak Post and Mailbox is cast from 100% rust free, powder coated ¼” aluminum. Our posts feature a strong single-piece construction that is placed 18-28 inches into the ground. Similar systems have 1/8”multi-piece posts which can weaken and bend over time. Our mailbox system will stand up to heavy winds, rains, blizzards, and storms. The Oak will serve as a beautiful introduction to your home for years to come.

ADD CURB APPEAL TO YOUR HOME: This Post Mount and Mailbox bundle can be used for residential or business purposes. Enhance the curb appeal to any home or office with this stylish post mount system. This durable mailbox was designed to give homeowners a beautiful, long-lasting mailbox that will bring compliments from their neighbors. Whether you are trying to sell your home, moving to a new home, or have owned your home for 20 years, you will grab your neighbor’s attention with this chic design.

INCLUDED WITH YOUR PURCHASE: The Oak Mailbox & Post includes one black mailbox 18.75" Long x 8.75" Tall x 6.25" Wide, one 6-foot pineapple finial post, decorative bracket accent, address plaque, address numbers (don’t forget to message us with your color preference & number selection), red aluminum flag, and all hardware needed for assembly. Addresses of Distinction includes a 1-year Manufacturer’s Warranty with your purchase.

Fine Art Lighting Me02 Wall Mounted Mailbox, Rustic Bronze

FINE ART LIGHTING
ME02
16.50 X 4.00 X 15.50 Inches
6.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
FINE ART LIVING 5.26

Features

Cast Aluminum: Thick aluminum metal promises strength and durability, as well as resistance against weather and scuffing

Hand Crafted Design: Ornamented in a Rustic Bronze aesthetic to complement any color scheme

Key Locking Mechanism: Unobtrusive key-lock mechanism ensures security without aesthetic comprimise

Large Mail Capacity: Able to hold multiple days of mail (15.5"x16.5"x4")

Easy Installation: Mailbox comes fully assembled, mounting hardwares is included

Barska Cb13254 Large Wall Mount Classic Collection Locking Drop Suggestion Mail Box

BARSKA
CB13254
7.00 X 15.00 X 12.75 Inches
4.95 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

【Secure Multi-Purpose Drop Lock Box】 This lock box is durable, lockable, mountable and comes with 2 keys & mounting hardware.

【Secure Storage】Designed to provide a secure way of locking up important items such as suggestion slips, ballots, mail, documents, keys, money, and much more.

【Convenient Office Use】This drop box is perfect for any work space or office use; The lockable drop box offers the perfect solution for security.

【Drop Slot】The drop box has a slot opening on top which accepts items up to 10 inches in width.

【Mounting】Pre-drilled holes and hardware allows the drop box to an be mounted directly to a wall. Includes Mounting Hardware; Lock Box Keys.

Qualarc Wf-1515 Vista Rectangular Locking Mailbox Gray Body, Door Top, Grey, Red/Black

QUALARC
WF-1515
5.50 X 11.00 X 15.50 Inches
5.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
UnbeatableSale, Inc 9.83

Features

This scratch resistant powder coated steel mailbox has a gray body, black top and red door

Large mailbox size: 11 inch w x 15.5 inch H x 5.5 inch D will hold several days of mail

Heavy duty lock with 2 keys adds security

Incoming mail slot opening is 8.625 inch long and 1.125” wide and will fit most envelopes and magazines but keep unwanted hand out

Mounting hardware not included. If mounting to a masonry wall, use masonry mounting screws with masonry anchors (at least 1-1/2 inch long)

#TOP11

Qualarc Wf-P010 Woodlake Wall Mount Rectangular Galvanized And Stainless Steel Locking Mailbox, Black/Silver

QUALARC
WF-P010
5.50 X 11.50 X 14.50 Inches
7.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Scratch resistant black powder coated steel body and a stainless steel letter flap and door

Large mailbox size: 11.5 inch w x 14.5 inch H x 5.5 inch D will hold several days of mail

Heavy duty lock with 2 keys adds security

Incoming mail slot opening is 11.375 inch long and 1.375” wide and will fit most envelopes and magazines but keep unwanted hand out

Mounting hardware not included. If mounting to a masonry wall, use masonry mounting screws with masonry anchors (at least 1-1/2 inch long)

Ydocabinit Package Delivery Boxes For Outside,Extra Large Mailbox,Galvanized Steel Parcel Mailbox,Wall Mounted Lockable Anti-Theft For Outdoor Porch,Curbside,Grey,Bg010A

YDOCABINIT
BG010
8.94 X 16.10 X 29.49 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Yoocabinet 5.37

Features

PROTECT YOUR PARCELS: No more worrying about parcels thefts or missing deliveries; Whether you're at work,on vacation or business trip, your delivery will be safe and sound in our parcel drop box when you get home. In addition, letters, magazines and large envelopes can also be delivered to our parcel drop box for porch.

HIGH QUALITY: Our delivery box for packages are made of strong galvanized steel for strength and durability, and environmental professional outdoor powder coated, which can effectively prevent rust, scratch-resistant and will not fade. This parcel box will provide long-lasting strength and use throughout the years while ensuring that your package is intact.

SECURITY & ANTI-THEFT: The delivery box come with a sturdy security key lock and anti-theft system. The delivery port cannot take out the package, and When the courier puts the parcel into the chute, it will automatically enter the storage cabinet below, and only use the key to open the cabinet door.

LARGE CAPACITY: The size of extra large mailbox for packages is 29.5"x16.1"x9.0" inch, Ydocabinit(Yoocabinet) parcel box can store most of the parcels, letters, magazines and large envelopes, and it is practical.

EASY INSTALLATION: Yoocabint delivery box has pre-drilled holes, mounting hardware sets for easy installation. and it can be installed at the porch, yard, or curbside to receive various packages. If you have any questions, please feel free to contact us, we provide high-standard customer service.

Ydocabinit Package Delivery Boxes For Outside, Large Mailbox For Parcel, Galvanized Steel Parcel Mailbox, Wall Mounted Lockable Anti-Theft For Porch,Curbside,Black-Bg005B

YDOCABINIT
PACKAGE-BG005B-1
11.80 X 15.70 X 35.40 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Yoocabinet 5.40

Features

PROTECT YOUR PARCELS: No more worrying about parcels thefts or missing deliveries; Whether you're at work,on vacation or business trip, your delivery will be safe and sound in our parcel drop box when you get home. In addition, letters, magazines and large envelopes can also be delivered to our parcel drop box for porch.

HIGH QUALITY: Our delivery box for packages are made of strong galvanized steel for strength and durability, and painted to effectively prevent rust, scratch-resistant finish.This parcel box will provide long-lasting strength and use throughout the years while ensuring that your package is intact.

SECURITY & ANTI-THEFT: The delivery box come with a sturdy security code lock and anti-theft system. The delivery port cannot take out the package, and When the courier puts the parcel into the chute, it will automatically enter the storage cabinet below, and only use the code to open the cabinet door.

LARGE CAPACITY: the size of large mailbox for packages is 35.4"x15.7"x 11.8" inch, Ydocabinit(Yoocabinet) parcel box can store most of the parcels, letters, magazines and large envelopes, and it is practical.

EASY INSTALLATION: Ydocabinit(Yoocabinet) delivery box has pre-drilled holes, mounting hardware sets for easy installation. and it can be installed at the porch, yard, or curbside to receive various packages.

Safco Products 4259Bl Inner Office Mailbox, Large, Black

SAFCO
4259BL
18.00 X 18.00 X 7.00 Inches
8.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Shoplet 9.71

Features

Inner Office mailbox for mail Collection, drop box and secure Office communication

Mailbox measures 18" X 18" X 7"

Slot opening measures 10.5" X .75"

Locking hinged door (2 keys included) for security

Steel construction with durable powder coat finish, Wall mounting hardware included

Large Lockable Wall Mounted Mailbox Includes Multiple House Numbers Sets! 4 Styles Of Lettering To Suit Any Home Design Includes Easy Access Mail Hatch, Keys And Mounting Hardware!

MONTVILLE GARDEN
MGMB01
4.75 X 11.00 X 16.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING

Features

✅✅ HOUSE NUMBERS INCLUDED! What good is a mailbox without house numbers? We have thoughtfully included a full set of house numbers. With one purchase, you are good to go!

✅✅ FOUR GORGEOUS STYLES OF HOUSE NUMBERS! Our incredible outdoor rated house number stickers are not only never going to peel off in the sun, but we have also included a modern, traditional, art deco and future font pack to suit your home decor.

✅✅ SIMPLY PEEL AND STICK! We spent ages designing beautiful hard-wearing mailbox numbers for our wall mounted mailboxes that include a temporary clear film that ensures the numbers are aligned and straight every time. Each letter has a perfectly cut transparent film that peels off at the end for a perfect finish on your wall mounted mailbox.

✅✅ SAFE AND SECURE! Our heavy-duty mailbox includes a hardened and secure lock that keeps your mail and small packages perfectly safe. Included is two keys and can be used as a drop box, storage box or security mailbox.

✅✅ EASY ACCESS! Our locking mailboxes USPS approved includes a small magnetic easy drop off door. Perfect for mail, small parcels, key drop box and drop slot safes. Plus, the large lockable and weatherproof section keeps you mail safe and dry!

Gibraltar Extra Large Mailsafe Lockable Security Mailbox

SOLAR GROUP
MSK
18.00 X 14.00 X 9.00 Inches
8.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Sirr0und 9.89

Features

Constructed from heavy-duty steel and plastic offering durability and resistance to rust

Extra large capacity provides ample space to house various types of mail and high volume mail deliveries

Features an incoming mail slot concealed by an aluminum flap for added security

Features a locking compartment with a cam lock for mail storage and added security against mail theft

Mounting hardware and instructions included for easy installation

Yoocabinet Package Delivery Boxes For Outside, Large Mailbox For Parcel, Galvanized Steel Parcel Mailbox, Wall Mounted Lockable Anti-Theft For Porch,Curbside,Black-Bg005

YOOCABINET
PACKAGE-BG005
11.80 X 15.70 X 35.40 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING

Features

PROTECT YOUR PARCELS: No more worrying about parcels thefts or missing deliveries; Whether you're at work,on vacation or business trip, your delivery will be safe and sound in our parcel drop box when you get home. In addition, letters, magazines and large envelopes can also be delivered to our parcel drop box for porch.

HIGH QUALITY: Our delivery box for packages are made of strong galvanized steel for strength and durability, and painted to effectively prevent rust, scratch-resistant finish.This parcel box will provide long-lasting strength and use throughout the years while ensuring that your package is intact.

SECURITY & ANTI-THEFT: The delivery box come with a sturdy security code lock and anti-theft system. The delivery port cannot take out the package, and When the courier puts the parcel into the chute, it will automatically enter the storage cabinet below, and only use the code to open the cabinet door.

LARGE CAPACITY: the size of large mailbox for packages is 35.4"x15.7"x 11.8" inch, Yoocabinet parcel box can store most of the parcels, letters, magazines and large envelopes, and it is practical.

EASY INSTALLATION: Yoocabint delivery box has pre-drilled holes, mounting hardware sets for easy installation. and it can be installed at the porch, yard, or curbside to receive various packages.

EXCELLENT SERVICE: If you have any questions, please feel free to contact us, we provide high-standard customer service.

Top 10 security mailboxes Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Qualarc 4
Ydocabinit 2
Addresses Of Distinction 1
Barska 1
Decaller 1
Fine Art Lighting 1
Mmoon-L&F 1
Montville Garden 1
Safco 1
Solar Group 1

Top 10 security mailboxes Brands Pie Chart


We've carried out a comprehensive analysis of 3,252 reviews on security mailboxes, using our selection criteria to identify the best options in the categories. Our findings reveal that most customers typically select security mailboxes priced around $114.39, with top brands including and

Our team of expert editors reviewed these high-quality items and handpicked the top 17 security mailboxes for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the categories category. These include and .

We are dedicated to assisting our users in finding the right mailboxes Products based on their needs, saving them considerable time when choosing which security mailboxes to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.