Adjust the mailbox’s height as necessary using a tape measure for accuracy. When attached to the post, the bottom of the mailbox needs to be 41 to 45 inches off the road’s surface.

Did you know that May 19 through May 25 is Mailbox Improvement Week? Skip to Article. ... The post office wants you to get a new mailbox: Here’s why. Updated: May. 22, 2024, 1:06 p.m.