Best Plastic Security Mailboxes in 2026
Daisy
Last Updated: Feb 9, 2026
Daisy
Last Updated: Feb 9, 2026
* 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.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Postmaster General approved and patented design allows delivery of mail bundles and small parcels - perfect for Internet and catalog shoppers
Body constructed of heavy 16 and 18 gauge galvanized steel fully powder coated prior to assembly for durability and long life
Doors include rubber seals to keep deliveries clean and dry - all hardware made from stainless steel and other corrosion resistant materials
Suitable for installation into a pilaster or column - the entire outer shroud is one piece to resist moisture and the elements
18-Inch d x 14-Inch h x 11.5-Inch w, 23-Pound - Use Adapter Plate 7530-10 for 4x4 wood post installation
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
USPS-approved full-service residential locking mailbox prevents mail-identity theft
14- and 16-gauge electro galvanized welded steel construction defends against vandalism, with an elegant wood-grain finish on the front face
Innovative baffle door accepts small packages and deters fishing, and patented anti-pry latch locking mechanism prevents leveraged entry
Includes concealed outgoing mail clip, 12-disc wafer lock, 3 keys and all necessary installation hardware
Dimensions: 21" D x 11. 25" H x 10. 75" W
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Postmaster General approved and patented design allows delivery of mail bundles and small parcels - perfect for Internet and catalog shoppers
Body constructed of heavy 16 and 18 gauge galvanized steel fully powder coated prior to assembly for durability and long life
Doors include rubber seals to keep deliveries clean and dry - all hardware made from stainless steel and other corrosion resistant materials
Suitable for installation into a pilaster or column - the entire outer shroud is one piece to resist moisture and the elements
18-Inch d x 14-Inch h x 11.5-Inch w, 23-Pound - Use Adapter Plate 7530-10 for 4x4 wood post installation
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Postmaster General approved and patented design allows delivery of mail bundles and small parcels - perfect for Internet and catalog shoppers
Body constructed of heavy 16 and 18 gauge galvanized steel fully powder coated prior to assembly for durability and long life
Doors include rubber seals to keep deliveries clean and dry - all hardware made from stainless steel and other corrosion resistant materials
Suitable for installation into a pilaster or column - the entire outer shroud is one piece to resist moisture and the elements
18-Inch d x 15-Inch h x 11.5-Inch w, 23-Pound - Use Adapter Plate 7530-10 for 4x4 wood post installation
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MU-MOON | 9.68 | ✅ | ✅ | ✅ |
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.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ❌ |
Product 1: USPS-approved full-service residential locking mailbox prevents mail-identity theft
Product 1: 14- and 16-gauge electro galvanized welded steel construction defends against vandalism, with an elegant wood-grain finish on the front face
Product 1: Innovative baffle door accepts small packages and deters fishing, and patented anti-pry latch locking mechanism prevents leveraged entry
Product 1: Includes concealed outgoing mail clip, 12-disc wafer lock, 3 keys and all necessary installation hardware
Product 2: Post made of heavy-duty 10- and 14-gauge electrogalvanized steel
Product 2: Features durable powder-coated finish
Product 2: Can be used with a wooden post for deep in-ground installations
Product 2: Includes 4 mounting bolts and clear instructions
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ❌ |
Product 1: USPS-approved full-service residential locking mailbox prevents mail-identity theft
Product 1: 14- and 16-gauge electro galvanized welded steel construction defends against vandalism, with an elegant wood-grain finish on the front face
Product 1: Innovative baffle door accepts small packages and deters fishing, and patented anti-pry latch locking mechanism prevents leveraged entry
Product 1: Includes concealed outgoing mail clip, 12-disc wafer lock, 3 keys and all necessary installation hardware
Product 2: Post made of heavy-duty 10- and 14-gauge electrogalvanized steel
Product 2: Features durable powder-coated finish
Product 2: Can be used with a wooden post for deep in-ground installations
Product 2: Includes 4 mounting bolts and clear instructions
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| KATANABOX, Tokyo manufacturer of modern mailboxes | 5.27 | ❌ | ❌ | ❌ |
LARGE CAPACITY: Post mount mailbox with lock, size of mailbox is 12" x 15" x 8", drop slot 14.2" x 1.4" this big letter box can hold plenty: bulk mails, padded envelopes, paperwork, small parcels, packages and post office delivery.
PRIVATE LOCKABLE WITH LOCK: For locking security, mailbox has secure key lock with 2 reserved key locks, lockable overhanging lid, protects mails from deliberate theft.
WEATHERPROOF: Mail box with high quality stainless steel magnetic cover, 99.9% waterproof structure that prevents rain from entering.
DURABILITY AND SOLID MATERIAL: Entire frame is made of high quality stainless steel, rust-resistant and heavy duty, made in Japan for security, safety. Aesthetic sleek posts, the KATANABOX series features a minimalist, modern take on the classic mailbox shape exterior decor.
RESIDENTIAL OR OFFICE USE: City or rural residential mailboxes, post mount mailbox with stylish look adds a contemporary touch to the facade outside, front porch, front door of your home or business; classic for rural and elegant houses.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ZFYanzhi | 0.00 | ❌ | ❌ | ❌ |
★SECURITY: This post box formed from corrosion-resistant solid wood, the letterbox is the ideal way to store your post safely and securely under all weather conditions.
★LARGE SIZE: The large size is ample enough for all your family's post and can accept letters, packet parcels, catalogues etc.
★ DECOR: Your postbox is a part of your house, so it must exude a good impression.
★Durable constructed with super classical and vintage style, pecfect to decorate your home gate.
★EASY INSTALLATION: Postbox includes pre-drilled holes, mounting screw and an instruction for easy installation, Ideal for apartments, Schools.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| aiyusen | 0.00 | ❌ | ❌ | ❌ |
★SECURITY: This post box formed from corrosion-resistant solid wood, the letterbox is the ideal way to store your post safely and securely under all weather conditions.
★LARGE SIZE: The large size is ample enough for all your family's post and can accept letters, packet parcels, catalogues etc.
★ DECOR: Your postbox is a part of your house, so it must exude a good impression.
★Durable constructed with super classical and vintage style, pecfect to decorate your home gate.
★EASY INSTALLATION: Postbox includes pre-drilled holes, mounting screw and an instruction for easy installation, Ideal for apartments, Schools.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| LOKDBM | 5.10 | ❌ | ❌ | ❌ |
★SECURITY: This post box formed from corrosion-resistant solid wood, the letterbox is the ideal way to store your post safely and securely under all weather conditions.
★LARGE SIZE: The large size is ample enough for all your family's post and can accept letters, packet parcels, catalogues etc.
★MODERN DECOR: Your postbox is a part of your house, so it must exude a good impression.
★Durable constructed with super classical and vintage style, pecfect to decorate your home gate.
★EASY INSTALLATION: Postbox includes pre-drilled holes, mounting screw and an instruction for easy installation, Ideal for apartments, Schools.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| xutianbaihuo | 0.00 | ❌ | ❌ | ❌ |
★EASY INSTALLATION Mount this box into walls or doors with ease,With pre-drilled holes and a mounting kit, you can do the installation yourself, And if your moving to a new location, simply detach this wall mountable post box for continuous use.
★Worry no more if the mail has arrived, Whether you're on a trip or busy with work, rest assure the mails are in the letter box outside your door,And compared to having a PO box, you got constant access anytime, any day.
★The mailbox material is solid wood, sturdy and durable, not easy to rust, and insect proof.
★Mailbox36.5cm high,34 cm long and10cm wide,Can accommodate put a lot of mailL etters, newspapers, magazines etc.
★This is a security mailbox, the wall mount mailbox with lock.Drilled mounting holes on the back plate and bottom.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| lianghuamei | 0.00 | ❌ | ❌ | ❌ |
★EASY INSTALLATION Mount this box into walls or doors with ease,With pre-drilled holes and a mounting kit, you can do the installation yourself, And if your moving to a new location, simply detach this wall mountable post box for continuous use.
★Worry no more if the mail has arrived, Whether you're on a trip or busy with work, rest assure the mails are in the letter box outside your door,And compared to having a PO box, you got constant access anytime, any day.
★The mailbox material is solid wood, sturdy and durable, not easy to rust, and insect proof.
★Mailbox36.5cm high,34 cm long and10cm wide,Can accommodate put a lot of mailL etters, newspapers, magazines etc.
★This is a security mailbox, the wall mount mailbox with lock.Drilled mounting holes on the back plate and bottom.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| fengweihuanying | 0.00 | ❌ | ❌ | ❌ |
★EASY INSTALLATION Mount this box into walls or doors with ease,With pre-drilled holes and a mounting kit, you can do the installation yourself, And if your moving to a new location, simply detach this wall mountable post box for continuous use.
★Worry no more if the mail has arrived, Whether you're on a trip or busy with work, rest assure the mails are in the letter box outside your door,And compared to having a PO box, you got constant access anytime, any day.
★The mailbox material is solid wood, sturdy and durable, not easy to rust, and insect proof.
★Mailbox36.5cm high,34 cm long and10cm wide,Can accommodate put a lot of mailL etters, newspapers, magazines etc.
★This is a security mailbox, the wall mount mailbox with lock.Drilled mounting holes on the back plate and bottom.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| henghuishangcheng | 0.00 | ❌ | ❌ | ❌ |
★EASY INSTALLATION Mount this box into walls or doors with ease,With pre-drilled holes and a mounting kit, you can do the installation yourself, And if your moving to a new location, simply detach this wall mountable post box for continuous use.
★Worry no more if the mail has arrived, Whether you're on a trip or busy with work, rest assure the mails are in the letter box outside your door,And compared to having a PO box, you got constant access anytime, any day.
★The mailbox material is solid wood, sturdy and durable, not easy to rust, and insect proof.
★Mailbox36.5cm high,34 cm long and10cm wide,Can accommodate put a lot of mailL etters, newspapers, magazines etc.
★This is a security mailbox, the wall mount mailbox with lock.Drilled mounting holes on the back plate and bottom.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| YONGfengjiayuan | 0.00 | ❌ | ❌ | ❌ |
★SECURITY: This post box formed from corrosion-resistant solid wood, the letterbox is the ideal way to store your post safely and securely under all weather conditions.
★LARGE SIZE: The large size is ample enough for all your family's post and can accept letters, packet parcels, catalogues etc.
★ DECOR: Your postbox is a part of your house, so it must exude a good impression.
★Durable constructed with super classical and vintage style, pecfect to decorate your home gate.
★EASY INSTALLATION: Postbox includes pre-drilled holes, mounting screw and an instruction for easy installation, Ideal for apartments, Schools.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Yepinxiewu | 0.00 | ❌ | ❌ | ❌ |
★EASY INSTALLATION Mount this box into walls or doors with ease,With pre-drilled holes and a mounting kit, you can do the installation yourself, And if your moving to a new location, simply detach this wall mountable post box for continuous use.
★Worry no more if the mail has arrived, Whether you're on a trip or busy with work, rest assure the mails are in the letter box outside your door,And compared to having a PO box, you got constant access anytime, any day.
★The mailbox material is solid wood, sturdy and durable, not easy to rust, and insect proof.
★Mailbox36.5cm high,34 cm long and10cm wide,Can accommodate put a lot of mailL etters, newspapers, magazines etc.
★This is a security mailbox, the wall mount mailbox with lock.Drilled mounting holes on the back plate and bottom.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
★EASY INSTALLATION Mount this box into walls or doors with ease,With pre-drilled holes and a mounting kit, you can do the installation yourself, And if your moving to a new location, simply detach this wall mountable post box for continuous use.
★Worry no more if the mail has arrived, Whether you're on a trip or busy with work, rest assure the mails are in the letter box outside your door,And compared to having a PO box, you got constant access anytime, any day.
★The mailbox material is solid wood, sturdy and durable, not easy to rust, and insect proof.
★Mailbox36.5cm high,34 cm long and10cm wide,Can accommodate put a lot of mailL etters, newspapers, magazines etc.
★This is a security mailbox, the wall mount mailbox with lock.Drilled mounting holes on the back plate and bottom.
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| 8 | |
| Architectural Mailboxes | 3 |
| Mail Boss | 3 |
| Gppzm | 1 |
| Houkai | 1 |
| Katanabox | 1 |
| Mmoon-L&F | 1 |
We've carried out a comprehensive analysis of 4,330 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 $273.34, with top brands including and
Our team of expert editors reviewed these high-quality items and handpicked the top 18 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.
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