Mailbox Numbers

Measure the available flat area on your mailbox, then choose numbers sized to fit with clear spacing; common heights range from 1 to 4 inches. Pick a finish and font that contrast with the mailbox color for visibility and match any local addressing regulations or HOA guidelines

Durable options include stainless steel, brass, aluminum, and weather-resistant plastics; stainless steel and brass resist corrosion best while many coated metals or UV-stable plastics resist fading. Consider the climate — coastal or high-salt areas benefit from stainless steel or marine-grade finishes

Typical mounting methods are self-adhesive backing, screw-mounted with predrilled holes, and stick-on with adhesive pads; screw mounts are the most secure for metal or wood mailboxes, while high-strength adhesives are suitable for smooth surfaces and renters. Check that adhesive alternatives are rated for outdoor use and that screw mounts won’t void mailbox warranty or violate local rules

Visibility depends on number height, contrast, finish, and placement; choose larger numbers, high-contrast colors (e.g., light numbers on dark mailboxes), and reflective or polished finishes for low-light visibility. Place numbers on the mailbox front or a clearly visible side and avoid obstructing them with decorations or plants

Wipe numbers periodically with mild soap and water and avoid abrasive cleaners that can scratch finishes; for metal numbers, a light polish or protective clear coat can reduce tarnishing. Recheck adhesive bonds and screw tightness annually, especially after extreme weather

Some municipalities, postal services, or homeowner associations specify minimum size, placement, or contrast for address numbers to ensure emergency and mail delivery visibility; check local codes or HOA rules before installation. Following common guidelines (visible from the street, contrasting color, and at least 3-inch height for houses) helps meet typical requirements