You want mailbox numbers that stay sharp and legible through rain, sun, and salt air, and these seven waterproof 2″ solid brass options deliver that durability with polished finishes and weatherproof seals. They install quickly with 3M adhesive and resist corrosion, UV, and humidity, so your curb appeal stays intact with little upkeep. Keep going to see which specific numbers balance visibility, finish, and long-term performance for your mailbox.
| 2″ Solid Brass Mailbox Number #1 (Weatherproof) |  | Best Overall | Material: Solid brass | Size (height): 2 inches tall | Protective Finish: Clear coat sealed (weatherproof) | VIEW LATEST PRICE | Read Our Analysis |
| 2″ Solid Brass Mailbox Number #6 (Weatherproof) |  | Most Durable | Material: Solid brass | Size (height): 2 inches tall | Protective Finish: Clear coat sealed (weatherproof) | VIEW LATEST PRICE | Read Our Analysis |
| 2″ Solid Brass Mailbox Number 2 (Weatherproof) |  | Sleek Design | Material: Solid brass | Size (height): 2 inches tall | Protective Finish: Clear coat sealed (weatherproof) | VIEW LATEST PRICE | Read Our Analysis |
| 2″ Solid Brass Mailbox Number #0 – Weatherproof |  | Weatherproof Pick | Material: Solid brass | Size (height): 2 inches tall | Protective Finish: Clear coat sealed (weatherproof) | VIEW LATEST PRICE | Read Our Analysis |
| 2″ Solid Brass Mailbox Number “3” with Adhesive |  | Easy Install | Material: Solid brass | Size (height): 2 inches tall | Protective Finish: Clear coat sealed (weatherproof) | VIEW LATEST PRICE | Read Our Analysis |
| 2″ Solid Brass Mailbox Number #4 – Weatherproof |  | Solid Construction | Material: Solid brass | Size (height): 2 inches tall | Protective Finish: Clear coat sealed (weatherproof) | VIEW LATEST PRICE | Read Our Analysis |
| 2″ Brass Mailbox Number “5” with Adhesive and Seal |  | Best Value | Material: Solid brass | Size (height): 2 inches tall | Protective Finish: Clear coat sealed (weatherproof) | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
2″ Solid Brass Mailbox Number #1 (Weatherproof)
If you want a durable, low-maintenance number that won’t tarnish on a curbside mailbox, the 2″ Solid Brass Mailbox Number #1 is a smart pick: its polished solid-brass construction sealed with a clear coat resists oxidation and comes with 3M automotive-grade peel-and-stick tape for fast, tool-free installation on any clean, flat surface. You’ll stick up to five 2″ numbers per side, relying on the clear coat to keep the brass bright and weatherproof. It’s sturdy, won’t bend easily, fits Better Box Mailboxes, and includes manufacturer support plus a standard 30-day Amazon return window.
- Material:Solid brass
- Size (height):2 inches tall
- Protective Finish:Clear coat sealed (weatherproof)
- Adhesive Type / Installation:3M double-sided automotive trim tape (peel-and-stick)
- Intended Mount Surfaces:Mailboxes, number plates, smooth/flat/clean surfaces
- Compatibility / Brand Fit:Compatible with Better Box Mailboxes curbside models (up to five 2″ numbers per plate)
- Additional Feature:Model BN1 / BBM050
- Additional Feature:Clear coat sealed
- Additional Feature:First released 2014
2″ Solid Brass Mailbox Number #6 (Weatherproof)
For homeowners who want a polished, maintenance-free address display, the 2″ Solid Brass Mailbox Number #6 delivers: You get a 2″ by 2″ solid brass numeral (model BN6, BBM055) that adds a designer accent to mailboxes and number plates. Its polished, clear-coated finish resists tarnish and oxidation, so it stays bright without frequent upkeep. Installation’s quick—3M automotive double-sided trim tape sticks to smooth, flat, clean surfaces for weather-resistant adhesion without screws. Compatible with Better Box Mailboxes curbside plates (up to five numbers per side). Launched in 2014, it’s durable, well-reviewed, and returnable within 30 days.
- Material:Solid brass
- Size (height):2 inches tall
- Protective Finish:Clear coat sealed (weatherproof)
- Adhesive Type / Installation:3M double-sided automotive trim tape (peel-and-stick)
- Intended Mount Surfaces:Mailboxes, number plates, smooth/flat/clean surfaces
- Compatibility / Brand Fit:Compatible with Better Box Mailboxes curbside models (up to five 2″ numbers per plate)
- Additional Feature:Model BN6 / BBM055
- Additional Feature:Customer high satisfaction
- Additional Feature:Clear coat sealed
2″ Solid Brass Mailbox Number 2 (Weatherproof)
Homeowners who want a polished, low-maintenance address marker will appreciate the 2″ Solid Brass Mailbox Number 2 (Weatherproof). You’ll get a designer accent that complements mailbox hardware and boosts curb appeal. It’s solid brass with a polished finish and clear coat seal to block moisture and air, resisting tarnish, bending, and breaking. Each number stands two inches tall; Better Box Mailboxes accept up to five 2″ numbers per side for flexible displays. Installation’s simple: 3M double-sided automotive trim tape is included for peel-and-stick mounting on smooth, clean surfaces without tools. It’s durable, stylish, and low-effort.
- Material:Solid brass
- Size (height):2 inches tall
- Protective Finish:Clear coat sealed (weatherproof)
- Adhesive Type / Installation:3M double-sided automotive trim tape (peel-and-stick)
- Intended Mount Surfaces:Mailboxes, number plates, smooth/flat/clean surfaces
- Compatibility / Brand Fit:Compatible with Better Box Mailboxes curbside models (up to five 2″ numbers per plate)
- Additional Feature:Designer accent detail
- Additional Feature:Long-lasting appearance
- Additional Feature:Clear coat sealed
2″ Solid Brass Mailbox Number #0 – Weatherproof
Choose the 2″ Solid Brass Mailbox Number #0 when you want a durable, weatherproof address numeral that still looks refined; made from solid brass, it offers exceptional durability and timeless appeal. Its polished finish resists bending and breaking, and a clear coat seals against tarnish from moisture and air, preventing oxidation and keeping brightness. At 2 inches tall, it fits Better Box curbside mailboxes and accommodates up to five 2-inch brass numbers per side. You get easy peel-and-stick installation with included 3M automotive trim tape for smooth, flat, clean surfaces. It adds elegant strength and designer polish to your mailbox.
- Material:Solid brass
- Size (height):2 inches tall
- Protective Finish:Clear coat sealed (weatherproof)
- Adhesive Type / Installation:3M double-sided automotive trim tape (peel-and-stick)
- Intended Mount Surfaces:Mailboxes, number plates, smooth/flat/clean surfaces
- Compatibility / Brand Fit:Compatible with Better Box Mailboxes curbside models (up to five 2″ numbers per plate)
- Additional Feature:Ideal for multiple uses
- Additional Feature:Designer accent profile
- Additional Feature:Clear coat sealed
2″ Solid Brass Mailbox Number “3” with Adhesive
If you want a durable, polished number that installs in seconds, the 2″ solid brass “3” with 3M adhesive is an ideal pick. You’ll get a 2-inch, solid brass numeral (model BN3) made by Better Box Mailboxes, polished and clear-coated to resist tarnish and weather. It complements mailbox hardware and fits Better Box curbside plates, which accept up to five two-inch brass numbers per side. Installation’s simple: peel the included 3M double-sided automotive tape and stick to any smooth, clean surface—no tools needed. Amazon offers a 30-day return window; full warranty details appear on the product page.
- Material:Solid brass
- Size (height):2 inches tall
- Protective Finish:Clear coat sealed (weatherproof)
- Adhesive Type / Installation:3M double-sided automotive trim tape (peel-and-stick)
- Intended Mount Surfaces:Mailboxes, number plates, smooth/flat/clean surfaces
- Compatibility / Brand Fit:Compatible with Better Box Mailboxes curbside models (up to five 2″ numbers per plate)
- Additional Feature:Model BN3 / BBM052
- Additional Feature:Warranty/support available
- Additional Feature:Clear coat sealed
2″ Solid Brass Mailbox Number #4 – Weatherproof
For anyone who wants a polished, maintenance-free address display, the 2″ Solid Brass Mailbox Number #4 is a smart pick — it’s crafted from solid brass with a clear coat seal to resist tarnish and withstand moisture. You’ll get a polished finish that resists bending and breaking, so numbers stay crisp over time. Installation’s simple: 3M automotive double-sided trim tape peels and sticks to clean, flat surfaces like mailboxes and number plates. It fits Better Box curbside models and accommodates up to five 2″ digits per side. This weatherproof option boosts curb appeal while minimizing upkeep.
- Material:Solid brass
- Size (height):2 inches tall
- Protective Finish:Clear coat sealed (weatherproof)
- Adhesive Type / Installation:3M double-sided automotive trim tape (peel-and-stick)
- Intended Mount Surfaces:Mailboxes, number plates, smooth/flat/clean surfaces
- Compatibility / Brand Fit:Compatible with Better Box Mailboxes curbside models (up to five 2″ numbers per plate)
- Additional Feature:Designer accent styling
- Additional Feature:Long-lasting brightness
- Additional Feature:Clear coat sealed
2″ Brass Mailbox Number “5” with Adhesive and Seal
Homeowners who want a polished, low-maintenance address accent will appreciate the 2″ solid brass number 5 with adhesive and clear-coat seal. You’ll get a durable, polished numeral made from solid brass that resists bending and complements mailbox hardware. The clear-coat seal prevents tarnish from moisture and air, keeping the bright finish longer without polishing. Installation’s quick: 3M double-sided automotive trim tape lets you peel and stick to any smooth, flat, clean surface—mailbox, number plate, or similar. You can mount up to five numbers per side, adding elegant, long-lasting curb appeal with minimal effort and maintenance.
- Material:Solid brass
- Size (height):2 inches tall
- Protective Finish:Clear coat sealed (weatherproof)
- Adhesive Type / Installation:3M double-sided automotive trim tape (peel-and-stick)
- Intended Mount Surfaces:Mailboxes, number plates, smooth/flat/clean surfaces
- Compatibility / Brand Fit:Compatible with Better Box Mailboxes curbside models (up to five 2″ numbers per plate)
- Additional Feature:Adhesive + protective seal
- Additional Feature:Elegant designer accent
- Additional Feature:Clear coat sealed
Factors to Consider When Choosing Waterproof Mailbox Numbers
When choosing waterproof mailbox numbers, think about the material and coating for rust resistance and the size so they’re clearly visible from the street. Check adhesive durability and whether the product’s weather resistance rating matches your local conditions. Also confirm the numbers are compatible with your installation surface to guarantee a secure, long-lasting fit.
Material And Coating
Although materials vary, you’ll get the best longevity from solid brass numbers with a polished finish and a clear coat seal, since brass resists bending and the clear coating keeps moisture and air from causing tarnish and oxidation. You should favor brass for durability and structural integrity; it stands up to impacts and doesn’t deform easily. The polished surface improves appearance and helps the clear coat adhere evenly, preserving that look through rain and humidity. Always check that the manufacturer applies a weatherproof coating designed for outdoor metals, because that barrier prevents corrosion and maintains luster. Choosing coated, solid-brass numbers minimizes maintenance, reduces replacement frequency, and guarantees your mailbox numbers stay functional and attractive despite prolonged exposure to the elements.
Size And Visibility
Because visibility affects delivery and safety, pick mailbox numbers that are easy to read from the street: go at least 2 inches tall (bigger if your mailbox sits far from the curb), choose bold, clearly shaped digits, and guarantee strong contrast with the mailbox surface so carriers and visitors can spot them quickly in daylight and low light. You should favor larger numbers when lighting is poor or the mailbox is recessed, since size directly improves readability at a distance and at night. Place numbers on a smooth, flat area to avoid shadows or distortion, and orient them for direct sightlines from the road. High-contrast colors and clean, simple fonts speed recognition. Thoughtful size and placement reduce missed deliveries and make your home safer.
Adhesive Durability
How will your mailbox numbers hold up through rain, sun, and wide temperature swings? You’ll want adhesive durability at the top of your checklist. Choose double-sided automotive-grade tapes — they bond strongly and resist peeling from rain, humidity, and UV exposure. Look for weatherproof formulations that specifically resist moisture and air degradation so numbers don’t loosen or fall off over time. A high-quality adhesive should let you peel and stick for easy installation while still providing long-term hold without extra screws. Prefer adhesives made for outdoor use; they often include treatments that prevent oxidation and breakdown, which directly extends the lifespan of your mailbox numbers and reduces the need for frequent replacements or reattachments.
Weather Resistance Rating
Want numbers that actually survive the elements? You should check the weather resistance rating before buying mailbox numbers. A high rating means they resist moisture, rain, and air without tarnishing or oxidizing. Look for protective clear-coat seals or similar coatings that create a barrier against water and corrosion. Products tested for humidity and temperature fluctuations will retain their finish longer and avoid ugly discoloration. Structural strength matters too: numbers that resist bending or breaking under weather stress score higher on durability. And don’t forget the adhesive—reliable glue that stays secure in wet, humid conditions is essential to preserve the seal and prevent gaps where moisture can intrude. Prioritize these traits for lasting, low-maintenance numbers.
Installation Surface Compatibility
Curious which surfaces will keep your waterproof mailbox numbers stuck and looking good? You’ll want a smooth, flat, clean surface for ideal adhesive bonding. Metal, plastic, and painted wood usually offer the best compatibility for peel-and-stick numbers, letting tape make full contact. Any dirt, rust, moisture, or oil will reduce adhesive effectiveness and risk long-term failure, so proper surface preparation—cleaning and drying—is essential before you apply numbers. Rough or uneven surfaces can prevent full adhesive contact and encourage peeling or detachment over time, so avoid them or choose mechanically mounted options. In short, match your attachment method to the substrate: peel-and-stick for smooth, flat, clean materials; alternative fastenings for textured or compromised surfaces.
Maintenance And Cleaning
Once your numbers are firmly attached, keeping them looking new comes down to simple maintenance and gentle cleaning. Wipe them regularly with a soft cloth and mild soap to remove dirt and grime; that routine preserves the polished look and prevents buildup. Don’t use abrasive cleaners or harsh chemicals, since those can strip clear coatings and compromise weatherproof seals. Check the numbers periodically for any oxidation or tarnishing, and address spots promptly to maintain brightness. Gentle methods also avoid scratching or dulling polished surfaces, which keeps both appearance and protection intact. Keep the area around the numbers clean and dry to limit moisture exposure, reducing risks of discoloration or adhesive weakening that could shorten their lifespan.
Design And Finish Options
When choosing waterproof mailbox numbers, think about how finish, material, and protective coatings work together to balance curb appeal and longevity. You’ll want polished finishes for an elegant look that boosts curb appeal while keeping a bright, shiny appearance. Solid brass with a polished finish gives you a timeless, sturdy option that resists bending and breaking. Look for a clear coat seal to protect against tarnishing and oxidation from moisture and air exposure. Choose numbers with a smooth, uniform surface and high-quality coating so the finish stays consistent and weather-resistant. By pairing durable material, a polished aesthetic, and a reliable protective layer, you’ll get stylish, long-lasting numbers that maintain their visual appeal.
Long-Term Corrosion Protection
Because mailbox numbers face constant exposure to moisture, salt, and temperature swings, you’ll want materials and seals that fight corrosion over the long haul. Choose solid brass or another inherently corrosion-resistant alloy so the base metal won’t oxidize or deteriorate. Look for a durable clear-coat seal that blocks air and moisture; without it even brass can lose shine over years. Confirm the coating’s rated durability for UV, salt spray, and temperature cycles so the finish stays bright. Pay attention to adhesive application—numbers that sit on a continuous, well-bonded bead prevent water wicking under edges and reduce hidden corrosion. Combining a resistant base material with an effective weatherproof seal extends service life and preserves appearance with minimal maintenance.
Frequently Asked Questions
Are These Numbers Visible at Night Without Illumination?
They’re not inherently visible at night without illumination; you’ll need reflective paint, glow-in-the-dark stickers, or external lighting to see them clearly. Adding a small solar or LED light will make your numbers readable after dark.
Can They Be Safely Used on Painted or Vinyl Surfaces?
Aye, you can safely use them on painted or vinyl surfaces if you clean and dry thoroughly, use recommended adhesive or screws, and avoid extreme temperatures; just press firmly, let cure, and you’ll have lasting, secure numbers like a telegram.
Do Any Numbers Interfere With Mail Slot Operation?
No, they typically won’t interfere with the mail slot if you place them away from the opening; you’ll want low-profile or flush-mounted numbers and to measure before installing so the slot clears fully and mail slides without snagging.
Are Replacement Adhesives or Screws Available Separately?
Good news — yes, you can snag replacement adhesives or screws separately. You’ll often find manufacturer kits or universal adhesives and stainless screws sold online or at hardware stores, so you won’t be stuck without mounting options.
Do They Comply With Local Addressing Ordinances?
They can, but you’ll need to check local ordinances first; you’re responsible for meeting size, color, reflectivity, and placement rules, so verify municipal or postal standards before installation to guarantee full compliance.
