Best Plastic Security Mailboxes in 2026

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

Convenient newspaper holder keeps papers clean and dry

Front and rear access to interior compartments

Includes address numbers, mounting hardware, and post cover

Constructed from galvanized steel with heavy-duty molded plastic door for added durability

Large capacity accommodates small to medium size packages

Powder-coated paint protects mailbox from rust and other elements, Access Type: Front Only, Security: Non-Locking

ENOUGH CAPACITY: Jssmst mailbox provides ample space for various types of mail, including rolled magazines

EXTERIOR DIMENSION: 12.2 x 8.3 x 3.05 Inch; INSIDE STORAGE AREA MEASURES: 11.82 x 8.07 x 2.56 Inch INSIDE STORAGE AREA MEASURES: 12.2 x 8.2 x 2.8 Inch

PRIVATE LOCKABLE: Jssmst mailbox includes key lock with 2 keys for security against theft

CONVENIENT AND SECURE DROPBOX: This wall-mount mailbox duty holds various mailings, paperwork, newspapers, magazines, small parcels, packages, post office deliveries. It provides the perfect solution for convenient and secure, dropbox applications

WEATHERPROOF: Outdoor mountable mailboxes are made with high quality galvanized steel magnetic cover, black powder coated that locked mails from heavy rain and deliberate theft.

RESIDENTIAL OR OFFICE USE: Aesthetic posts, mounts vertical mailbox stylish look adds modern touch to exterior decor, front door house, commercial or business, classic rural and modern apartment. In terms of its locking security, mailbox has secure key lock with two reserved key locks that is not easy to duplicate.

Large Capacity: The lockable wallmount mailbox duty are holding multi mailings, group mail, paperwork, newspaper, magazines, small parcel, package, and post office deliveries; This measures (15.0 x 15.7 x 4.8) Inches (W x D x H), Model Number - SLMAB06

WeatherProof: Outdoor mountable mailboxes are made with high quality galvanized steel magnetic cover, black powder coated that locked mails from heavy rain and deliberate theft

Residential Or Office Use : Aesthetic posts, mounts vertical mailbox stylish look adds modern touch to exterior decor, front door house, commercial or business, classic rural and modern apartment; In terms of its locking security, mailbox has Secure key lock with two reserved key locks that is not easy to duplicate

Heavy-Duty Mail Drop Box: The mail drop box is made of 1.2 mm thick steel with rust-proof powder coating, sturdy and durable. You can use this secure mailbox to collect keys, letters, cashes, office documents, rent checks from the tenants, greeting cards, etc.

Good-Sized Storage Bin & Slot: The through-the-wall drop mail box has a 12.5'' x 6.3'' x 16.9'' storage bin with 0.77 cubic feet of space, which can accommodate plenty of small-sized items. 9.8'' x 2.3'' slot is suitable for smartphones, envelopes, small mails.

Adjustable Chute: The adjustable chute fits 2.75 - 7.87 inches thick wall, compatible with common types of walls. Heightened mailbox door effectively solves the mail jamming problem. In addition, the wall mount hardware is included for easy installation.

SECURE AFTER HOUR DROP: This mountable mailbox provides convenience and security for night drops, key drops, payment drops, interoffice mail and much more. It has a secure key locking feature with two reserved lock keys not easy to duplicate

LARGE CAPACITY: Large enough to hold multi mailings, group mail, paperwork, newspaper, magazines, small parcel, package, post office deliveries. It measures 9.0’’ x 3.3’’ x 12.5’’ (L x W x H) and features a universal mount to any wall or flat surface

DURABLE WEATHERPROOF CONSTRUCTION: The outdoor indoor wall mounted mailbox is made with high quality galvanized steel magnetic cover and white powder coated finish that locked mails from heavy rain and deliberate theft

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.

LARGE CAPACITY: Wall mount mailbox lock with window,size of mailbox is 14” x 12” x 4.1”, drop slot 13.4”x1.1” this big letter box can hold plenty: bulk mails, padded envelopes, paperwork, newspapers, magazines, small parcels, packages and post office delivery.

PRIVATE LOCKABLE WITH LOCK: For locking security, mailbox has secure key lock with 2 reserved key locks, protects mails from deliberate theft.

WEATHERPROOF: Mail box with high quality stainless steel magnetic cover, 99.9% waterproof structure that prevents rain from entering.

Single post with Lewiston mailbox, square base and pineapple finial

Add our Lewiston Locking Mailbox Conversion Kit for added security Amazon # B01KSELS4O

Protective, weather-resistant Bronze powder coated finish. Made from solid cast aluminum and steel 

Black steel wall mount mailboxes with Lock

Lock with 2keys

Flip waterproof and dustproof

★Numerous Uses -Use for Residential Commercial.It Adds a Touch to Facade Outside.

★Front Porch, Front Door of Your Home or Business; Classic for Rural and Houses.

★Privacy protection-Use as a Mail Collection Box for All Incoming and Outgoing Help Keep Private Interoffice Correspondence Confidential.

★Numerous Uses -Use for Residential Commercial.It Adds a Touch to Facade Outside.

★Front Porch, Front Door of Your Home or Business; Classic for Rural and Houses.

★Privacy protection-Use as a Mail Collection Box for All Incoming and Outgoing Help Keep Private Interoffice Correspondence Confidential.

★Numerous Uses -Use for Residential Commercial.It Adds a Touch to Facade Outside.

★Front Porch, Front Door of Your Home or Business; Classic for Rural and Houses.

★Privacy protection-Use as a Mail Collection Box for All Incoming and Outgoing Help Keep Private Interoffice Correspondence Confidential.

★Numerous Uses -Use for Residential Commercial.It Adds a Touch to Facade Outside.

★Front Porch, Front Door of Your Home or Business; Classic for Rural and Houses.

★Privacy protection-Use as a Mail Collection Box for All Incoming and Outgoing Help Keep Private Interoffice Correspondence Confidential.

Mount in masonry walls and columns chute adjusts to match the thickness of your wall

Castings are made in solid aluminum and top quality black enamel finish. Manufactured in England

Large capacity, secure mail storage with rear lockable door supplied with 2 keys

Large Capacity - Measured 27 x 12 x 38 cm/10.6 x 4.7 x 14.9 inch, big to hold various mailings, bulk mails, padded envelopes, paperwork, newspapers, magazines, box mails, post office delivery.

Multiple uses - Use as a mail collection box for all incoming and outgoing office mailto help keep private interoffice correspondence confidential.

Secure Design - With keys to lock in, keep your letter safe, reduces the risk of mail being removed without a key, security against theft, that items dropped inside are safe and secure.

Large Capacity - Measured 27 x 12 x 38 cm/10.6 x 4.7 x 14.9 inch, big to hold various mailings, bulk mails, padded envelopes, paperwork, newspapers, magazines, box mails, post office delivery.

Multiple uses - Use as a mail collection box for all incoming and outgoing office mailto help keep private interoffice correspondence confidential.

Secure Design - With keys to lock in, keep your letter safe, reduces the risk of mail being removed without a key, security against theft, that items dropped inside are safe and secure.

Large Capacity - Measured 27 x 12 x 38 cm/10.6 x 4.7 x 14.9 inch, big to hold various mailings, bulk mails, padded envelopes, paperwork, newspapers, magazines, box mails, post office delivery.

Multiple uses - Use as a mail collection box for all incoming and outgoing office mailto help keep private interoffice correspondence confidential.

Secure Design - With keys to lock in, keep your letter safe, reduces the risk of mail being removed without a key, security against theft, that items dropped inside are safe and secure.

Large Capacity - Measured 27 x 12 x 38 cm/10.6 x 4.7 x 14.9 inch, big to hold various mailings, bulk mails, padded envelopes, paperwork, newspapers, magazines, box mails, post office delivery.

Multiple uses - Use as a mail collection box for all incoming and outgoing office mailto help keep private interoffice correspondence confidential.

Secure Design - With keys to lock in, keep your letter safe, reduces the risk of mail being removed without a key, security against theft, that items dropped inside are safe and secure.

Large Capacity - Measured 27 x 12 x 38 cm/10.6 x 4.7 x 14.9 inch, big to hold various mailings, bulk mails, padded envelopes, paperwork, newspapers, magazines, box mails, post office delivery.

Multiple uses - Use as a mail collection box for all incoming and outgoing office mailto help keep private interoffice correspondence confidential.

Secure Design - With keys to lock in, keep your letter safe, reduces the risk of mail being removed without a key, security against theft, that items dropped inside are safe and secure.

Product 1: Postmaster General approved and patented design allows delivery of mail bundles and small parcels - perfect for Internet and catalog shoppers

Product 1: Body constructed of heavy 16 and 18 gauge galvanized steel fully powder coated prior to assembly for durability and long life

Product 1: Doors include rubber seals to keep deliveries clean and dry - all hardware made from stainless steel and other corrosion resistant materials

DONATION COLLECTION BOX-- Suitable capacity for storing envelope, newspaper, letter of complaint, as well as the donation.

SAFE LOCK BOX-- Modern touch to exterior decor, front door house, commercial, business, classic rural modern apartment.

WALL MOUNTABLE DONATION BOX-- Wall hanging design, suitable for indoor and outdoor; It comes with a security lock, which can make your belongings more secure.

Large Capacity - Measured 27 x 12 x 38 cm/10.6 x 4.7 x 14.9 inch, big to hold various mailings, bulk mails, padded envelopes, paperwork, newspapers, magazines, box mails, post office delivery.

Multiple uses - Use as a mail collection box for all incoming and outgoing office mailto help keep private interoffice correspondence confidential.

Secure Design - With keys to lock in, keep your letter safe, reduces the risk of mail being removed without a key, security against theft, that items dropped inside are safe and secure.