Mailbox Height & Placement – Official USPS Guidelines

Mailbox Height

Your mailbox height may not interest you most of the time, but rest assured that this is a very important topic to your mail carrier.  The USPS official mailbox regulations state that the mailbox should be positioned at a height between 41″ – 45″.

mailbox height

When measuring, take note that this height measurement is from the ground where your post is placed and not the road.  This is assuming that your post is on somewhat level ground.  If your post is on the downside of a hill, take this into consideration when measuring as this will position your box lower.  Also, notice that your measurement is to the bottom of the mailbox door, where the hinge is located.  This is the standard mailbox height that is most accessible from the mail carrier’s vehicle.  If you position the mailbox too high or too low, it may force the carrier to open their door to insert your mail.  This will not result in a happy mail carrier and we definitely want to keep those who are delivering our mail happy!  (See Unfriendly Mail Carrier)


Curb Placement

Equally as important, be sure the front edge of your mailbox is 6-8″ from the curb.  If you do not have a curb, place it 6-8″ from the edge of the road.  The distance you place the post from the road does not matter, it’s all about that front mailbox door.  This will enable your mail carrier to pull up to the mailbox, insert your mail, and proceed without having to exit the vehicle.

mailbox placement


Which side of the road?

Your mailbox placement should always be on the right side of the road on one-way streets.  That is, if you are driving down the road, your mailbox should be on your right side.  This is the direction the mail carrier’s route will naturally take as they are traveling down the road.

In rural settings, look at other mailboxes on the same road.  You will want your mailbox on the same side as the others, even if it means you must cross the road to get your mail.

Don’t forget to keep trash cans and vehicles a good distance from your mailbox to allow your carrier enough free clearance.  They will greatly appreciate this little courtesy!

13 Responses

  1. Pamela Sullivan

    Where can you place your mailbox on the street? Does it matter if it’s near a sewer grate or white line So?

  2. L. Powell

    Where should RFD Mailbox be house mounted for handecaped delivery?

  3. Cris R Petersen

    The 1st diagram shows a requirement of 6 to 8″ from the curb to the mail box front with the door closed.
    The 2nd diagram shows a requirement of 6 to 8″ from the curb to the top of the door when opened.

    Which is it? ?

    • D Staven

      6 to 8 inches from the curb when mail box front with door closed.

  4. Norma J Green

    My mailbox has been the same box, on the very same post and at the same exact spot and height since 1976, thats 44 years since my father put it there as per postal requirements. They, nor I, since I’ve been living here now for 13 of those 44 years, have never had an issue with the mail carrier about the mailbox, however, since last summer 2019 I’ve noticed that almost every week , at least twice a week my door has been left opened, some others on the street have been having the same issue. I do not know who our carrier is as I have seen 3 different carriers over the past year.
    When I decided to make a complaint about the opened door then I received a recording stating my mailbox must be adjusted in height and placement.
    I fully believe this is retaliation for my complaint, Which by the way was Not to cause trouble But to have someone talk to the carrier about being more careful.
    I do not see why we have to adjust our mailbox after 44 years.

  5. Cecilla Vickers

    Our mailbox was the same height as all the other boxes along our road and suddenly we were told that our box was a foot to short and we had to raise it by one foot. I am 4 foot 11 inches tall now My box comes to my nose and I cannot see over it. It gets hit and knocked down about once a month. I got permission to move it just this week. I have nearly been hit by cars and fallen down the hill that it stands on and hurt myself several times I am 65 years old.

  6. Brian O'Connor

    We installed our mailbox in 1999 and we’ve had over 20 years of service without any complaints. Today (April 19, 2020), we got a notice from our present carrier “Ron Xxxxx” (dated 17 April) telling us that our mailbox was non-compliant because it is too low and we needed to have problem corrected. “Ron’s” notice kindly gave us until May 1 to solve our problem, or else our mail delivery might be suspended.

    I’d like to know when these regulations went into effect.

    If after 2000, why wasn’t there a grandfather clause that would protect us and people like us, we who in good faith had our mailbox installed according to the then-current rules when we built our house, from being sucker-punched like this?

    It’s going to cost $$$ to satisfy “Ron” and whoever the chipper author who wrote the above prose telling us how tough delivering mail to non-compliant mail boxes is.

    • Connie

      Did you ever get an answer to this question? I, too, have had a mailbox in for over 20 years and got a similar notice to yours. What is going on?

  7. Bill Coul

    Two diagrams with dimensions of where and how high, etc have differing measurements. On one diagram the distance from the mailbox closed door is 6-8″ from the edge of the road/curb. On another diagram you show the distance 6-8″ from the front of the opened mailbox door. Which is correct because that distance difference is 8″ (length of the open mailbox door).


    A mailbox with the Postmaster General’s (PMG) seal of approval meets USPS size and construction standards. If you build your own mailbox or buy a custom-made one, it must meet the PMG standards. Show your local postmaster your mailbox plans or your custom-made box for approval.

  9. david brewster

    The first drawing shows the box 41″ to 45″ from the ground level. The second shows 41″ to 45″ from the street level. Which one is correct?

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