10 Best Locking Mailboxes 2025 in the United States

The Mail Boss 7506 Mail Manager is an excellent choice for those looking for a secure and reliable locking mailbox. Its robust construction, made from 14- and 16-gauge galvanized welded steel, offers strong defense against vandalism, making it an ideal option for residents concerned about mail theft. The mailbox features an innovative baffle door that not only accepts small parcels and packages but also helps to deter fishing, a common method used by thieves to retrieve mail. This level of security is further enhanced by the patented Anti-Pry latch lock mechanism and a high-security 12-disc wafer lock, which are designed to prevent unauthorized access.

In terms of practicality, the mailbox provides ample capacity at 1760 cubic inches, accommodating a good amount of mail, including larger items. It's also USPS approved, ensuring it meets the necessary postal standards for full-service mail delivery.

There are a few considerations to keep in mind. While the mailbox is designed for curbside mounting, installation might require some DIY skills, as it comes with the necessary hardware but no detailed instructions. Additionally, while the powder-coated finish is visually appealing and adds a layer of weather resistance, some users may find that over time, exposure to the elements can lead to wear and tear.

The Architectural Mailboxes 6200B-10 Oasis Classic Locking Post Mount Parcel Mailbox is a solid choice for those who regularly receive small parcels and bundles, particularly online shoppers.

This mailbox is made from heavy 16 and 18 gauge galvanized steel, which is powder-coated for added durability and longevity. The robust construction and design, including rubber-sealed doors and corrosion-resistant materials, ensure that your deliveries remain clean and dry, even in harsh weather conditions. It's designed to be installed into a pilaster or column, and the one-piece outer shroud helps resist moisture effectively. However, if you plan to mount it on a 4x4 wood post, an additional adapter plate is required, which may add to the setup complexity and cost.

The mailbox dimensions are 18 inches deep, 12 inches wide, and 15.2 inches high, providing a generous capacity of 2256 cubic inches. Weighing 5.9 pounds, it is relatively lightweight for its size and material. The high-security reinforced lock adds an extra layer of protection for your mail, but note that the product does not come with any advanced security features beyond the lock itself. The black, contemporary design is aesthetically pleasing and suitable for most home exteriors.

This mailbox is well-suited for those seeking a durable, weather-resistant option with a decent capacity and a secure lock, though it may require additional components for certain mounting styles.

The Architectural Mailboxes 6300B-10 Oasis 360 Locking Parcel Mailbox is a robust option for those looking for a secure and spacious mailbox. Made from heavy gauge galvanized steel, this mailbox is fully powder-coated to enhance corrosion resistance, which ensures durability even in harsh weather conditions. The dual door design with front and rear keyed access, coming with four keys, adds a level of security that is reassuring for users concerned about mail theft.

Its large capacity, capable of accepting parcels of various sizes, makes it ideal for receiving multiple packages and bundled mail without frequent emptying. The dimensions (20” D x 11.4” W x 11.5” H) provide ample room, while the 1535 cubic inch volume accommodates a significant amount of mail. Installation is simplified with predrilled mounting holes and included instructions. However, the mailbox is relatively heavy at 15.8 pounds, which may require additional support during installation.

Additionally, while the design is contemporary and will fit well with modern home aesthetics, its size and look may not be suitable for more traditional settings. The mailbox is post-mounted, which might limit its placement options for some users. The product has received positive feedback, with a 4.6 out of 5-star rating from over 2,600 reviews, indicating high user satisfaction. It’s a reliable choice for those needing a combination of security, capacity, and weather resistance in a locking mailbox.