To protect a mailbox from snowplows, set it 6 to 8 inches back from the curb as USPS asks, mount it on a sturdy steel or swing-away post your road department allows, mark it for the plow driver, and clear the snow left in front of it. If a plow damages it, many towns pay only for direct contact, not thrown snow.
Below we cover who pays when a snowplow damages your mailbox, how to set up a mailbox post that survives winter, and what to do before the first storm.
Who pays if a snowplow hits your mailbox?
It depends on who plows your road and what their written policy says. There is no single national rule. Most towns, counties and state highway departments draw the same line, though: they may pay if the plow blade or truck physically struck the mailbox or post, and they do not pay if the force of thrown snow knocked it down.
Mailboxes usually sit in the road right of way, and many policies treat them as there at the owner's risk. Where reimbursement exists, it is usually a small fixed amount for a basic post and box, not the cost of a decorative or premium system.
Real examples of municipal mailbox damage policies
These are examples only. Your town's policy may be different, so check with whoever plows your road.
| Road authority | Pays for direct plow contact? | Pays for thrown snow? | What the policy says |
|---|---|---|---|
| Salem, Connecticut | May repair, replace or reimburse | No | Reimbursement up to $40 for a standard wood post and $35 for a standard metal mailbox ($75 cap). Decorative or custom systems are not replaced. Boxes that do not meet USPS placement may be denied. |
| Bloomfield, Connecticut | Yes | No | Up to $50 for the post and $25 for the mailbox; labor is not reimbursed. |
| Harwinton, Connecticut | Yes | No | $25 for the post and $15 for the mailbox, no labor. Report within one week. Higher-value claims can go to the town's insurer in writing. |
| Brookline, New Hampshire | Yes, town or town-hired plow only | No | Covers only a standard wooden post and plain black mailbox. The installation must meet USPS and FHWA guidelines. |
| Marathon County, Wisconsin | Yes, for a properly installed box | No | Repairs or replaces with a standard metal mailbox. |
| Chisago County, Minnesota | Only for an approved swing-arm mailbox hit by the plow itself | No | Sells swing-away supports and posts to residents on county roads. |
Sources: Salem, CT, Bloomfield, CT, Harwinton, CT, Brookline, NH, Marathon County, WI, Chisago County, MN.
How to file a claim if your mailbox was damaged by a snowplow
- Find out who plows the road. A state highway, a county road and a town street can each have a different department and policy. A private plow contractor hired by an HOA is a separate matter.
- Take photos before you touch anything. Show the post, the box, any blade marks and where the snowbank sits.
- Note the date and time the damage happened, if you know it.
- Report it quickly. Some towns set a deadline; Harwinton, CT, for example, wants reports within one week.
- Ask what the payout covers before you buy a replacement. Most policies cover a standard box and post, not the one you may want to upgrade to.
Where to place your mailbox so the plow misses it
USPS asks for the mailbox to sit 41 to 45 inches from the road surface to the bottom of the box or the point of mail entry, and 6 to 8 inches back from the curb (see the USPS mailbox guidelines). If your road has no raised curb, USPS says to ask your local postmaster where the box should go.
Within that range, use the deeper end. A plow blade, and especially its wing, reaches past the plowed edge, so the extra couple of inches matter. Do not move the box so far back that the carrier cannot reach it from the vehicle, or you risk not getting curbside delivery. Our guide to how high a mailbox should be covers placement in more detail.
- Measure from the plowed edge, not the summer lawn line. Plows often push the road edge wider during the season.
- Keep the post itself further back than the box. An arm or bracket that cantilevers the box toward the road puts the box in reach while the post stays out of the blade's path.
- Avoid the outside of a curve if you have a choice; snow is thrown hardest there.
- Your postmaster has the final say on placement, and your road authority may have its own rules for anything in the right of way.
How to make a mailbox snow plow proof
No mailbox is truly plow proof. What you can do is make it harder to hit, sturdy enough to survive thrown snow, and quick to fix when the worst happens.
Option 1: A sturdy steel post and steel mailbox
Thrown snow is the most common cause of winter mailbox damage, and it is the damage towns usually do not pay for. A heavy steel box on a steel post resists it far better than a plastic box on a thin wood post.
The Mail Boss steel post is a 4 x 4 inch electro-galvanized steel post with a powder-coated finish. The in-ground version is 43 inches tall and is typically buried about one foot and set in concrete. It comes in black, granite, white and bronze, plus other finishes on some versions, and it fits all Mail Boss post-mount mailboxes.
Pair it with a steel box such as the Mail Boss Mail Manager: 14 and 16 gauge electro-galvanized welded steel, 11.25 x 10.75 x 21 inches, stainless steel hinges and a locking access door. The Mail Manager & Post package bundles the box, post and hardware.
Check the rules first. Many state and county highway departments limit how strong a mailbox support in the right of way can be, so a vehicle that leaves the road is not stopped by a rigid post. Minnesota's Local Road Research Board guidance, for example, treats a 4 x 4 inch wood post or a metal pipe of 2 inches or less in diameter as the maximum and calls anything stronger unsafe (LRRB mailbox guide). Brookline, NH, will not consider a claim for an installation that does not meet FHWA guidelines. On a rural or higher-speed road, ask your road department what support it allows before you set a steel post in concrete.
Option 2: A swing-away mailbox support
A swing-away support holds the box on an arm that pivots out of the way when it is hit, then swings back. It is the style many northern road departments prefer, and USPS itself suggests a semi-arch or extended arm-type support where snow removal is a problem, so the plow can clear near or under the box (Postal Bulletin 22702). Some, such as Chisago County, MN, sell them to residents and only pay for plow damage to approved swing-arm supports. If you live on a county or state road in snow country, ask whether your road department sells one or has a required design.
Option 3: A rear-access box set back from the road
The Mail Boss Street Safe Latitude has locking doors on both the front and the rear, so you can collect mail from the yard side instead of standing in the plowed lane. It is a steel box (21 x 11.25 x 10.75 inches) for an in-ground or surface-mount post sold separately.
Option 4: Surface mounting on a hard surface
If your box sits on a concrete or asphalt apron, the Mail Boss surface mount base plate (10-gauge galvanized steel) bolts a Mail Boss post to the surface. It suits driveways where you cannot dig, but confirm with your postmaster that the location works for delivery.
Make the mailbox visible to the plow driver
Plow drivers work at night, in whiteouts and against snowbanks taller than your box. Help them see it.
- Snow stakes or driveway markers on either side of the post, taller than the expected snowbank.
- Reflective tape on the post and the edges of the box.
- Reflective or high-contrast address numbers on the box or a nearby address plaque. These also help emergency crews find you.
- A light-colored or bright box stands out against a dark night better than a black one, though a black box with reflective markings works too.
Clear the snow so your mail still gets delivered
After the plow passes, the snowbank usually ends up right where the carrier needs to pull up. USPS asks customers to clear enough snow from curbside boxes for the mail truck to approach and leave without backing up, and to keep the approach and exit clear of snow, trash cans and parked vehicles. As one USPS release puts it: "if they cannot reach your mailbox, they cannot deliver your mail" (USPS, 2024).
- Clear a pull-in and pull-out lane on both sides of the box, a car length or so.
- Knock snow off the top of the box and clear the door so it opens fully.
- Shovel low around the post so the next plow pass has somewhere to put snow besides your box.
- Repeat after each plow pass, not just each storm.
Before-winter mailbox checklist
| Check | Why |
|---|---|
| Box is 6 to 8 inches back from the curb and 41 to 45 inches high | USPS placement, and some towns deny claims for non-compliant boxes |
| Post is solid, plumb and not rotted at ground level | Rotted posts are excluded by many policies |
| Support type is allowed by your road department | Some only pay for standard or swing-away supports |
| Snow stakes and reflectors installed | Visibility in storms and at night |
| Door, hinges and flag work freely | Ice and frozen hinges damage doors |
| You know who plows your road and how to report damage | Deadlines can be short |
If you are replacing a post this fall, our mailbox installation guide walks through setting it, and call 811 before you dig so buried utilities are marked.
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Frequently asked questions
Does the town pay if a snowplow hits my mailbox?
Often, but only if the plow physically struck it and the box met placement rules. Most towns pay a small fixed amount for a standard post and box. Damage from thrown snow is usually the owner's responsibility. Check your local policy.
Is snow thrown by a plow covered?
Usually not. Policies in towns such as Bloomfield and Harwinton, CT, and Marathon County, WI, say damage from the force of thrown snow is not reimbursed. A heavier steel box and post resist thrown snow better.
How far from the road should a mailbox be to avoid the plow?
USPS asks for the front of the box to be 6 to 8 inches back from the curb or road edge. Use the deeper end of that range, and ask your postmaster if there is no curb.
What is a swing-away mailbox post?
A support with a pivoting arm that swings aside when hit, then returns. Many northern road departments prefer them, and some sell them to residents. Ask your road department whether it has a required design.
Will the mail carrier deliver if snow blocks my mailbox?
USPS says that if carriers cannot reach your mailbox, they cannot deliver your mail. Clear a path for the mail truck to pull up and leave, and keep the mailbox door clear.
Can I use a steel post for my mailbox?
Often yes, especially on curbed residential streets. Some state and county road departments limit supports to a 4x4 wood post or a 2-inch metal pipe on their roads for crash safety, so check before you install.
******It is always recommended to contact your local postmaster prior to installation. While most of our mailboxes are USPS-approved your local postmaster may have specific preferences in terms of mailbox types and installation location******