You’ve got a package ready to go, but the post office just closed. That familiar blue box on the corner might be your answer — but not every package fits.

USPS collection boxes in the U.S.: over 300,000 ·
Average daily collection frequency: once per day on most boxes ·
Maximum package thickness for collection boxes: ½ inch (First‑Class) up to 1 cubic foot (Priority Mail)

Quick snapshot

1Confirmed facts
2What’s unclear
3Timeline signal
  • Collection times are posted on each box label (USPS Official Glossary)
  • Most boxes are collected once per weekday (USPS Official Glossary)
4What’s next
  • Use the USPS locator to find a drop box near you
  • Check box label for exact pickup window before dropping (USPS locator)

Five key facts at a glance, taken directly from official USPS sources:

Fact Value
Number of collection boxes over 300,000
Standard collection frequency once per day, weekdays
Maximum package weight (First‑Class) 13 ounces
Maximum package size (Priority Mail) 1 cubic foot
Prepaid packages accepted Yes, with correct postage

The implication: these limits define when a blue box is the right choice and when you need a counter.

The upshot

Prepaid packages are welcome in blue boxes, but there are size limits. A bulky Priority Mail box might need the post office counter or a self‑service kiosk instead.

Is there a drop box for USPS?

Yes. The United States Postal Service operates a vast network of blue collection boxes on streets, sidewalks, and in residential neighborhoods. The official term is “Collection Box,” but most people call them drop boxes. These boxes are specifically designed to accept letters and small packages, and they are a reliable option when the post office lobby is closed.

What is the official name of a USPS drop box?

The USPS officially calls them Collection Boxes. According to the USPS Official Glossary (the agency’s official definitions), these are “the blue boxes found on many street corners that accept letters and small packages.” There are also specially marked white boxes designated for Priority Mail Express items only.

Are USPS drop boxes the same as blue boxes?

Yes — the blue boxes you see every day are the standard USPS drop boxes. The USPS glossary confirms that “Collection Boxes” include freestanding blue mailboxes, lobby drop‑off slots, and mail chutes in office buildings.

Bottom line: The blue box on your corner is a USPS drop box. Use it for letters and small parcels that meet size and weight rules.

What is a Collection Box?

A Collection Box is a metal mailbox — usually blue — with the USPS logo and a chute or door for deposits. They are designed for self‑service mailing. The USPS glossary lists several types: freestanding blue boxes (the most common), white Express mailboxes, lobby drop slots, and building mail chutes.

What items can you deposit in a Collection Box?

  • First‑Class letters and cards (up to 13 oz and ½ inch thick) — USPS First‑Class Mail guidelines
  • Small packages with correct postage or a prepaid label
  • Priority Mail packages up to 1 cubic foot in larger box openings — USPS Priority Mail rules
  • Prepaid Priority Mail Express items in white Express boxes — USPS Express Box description

Are there different sizes of Collection Boxes?

Yes. Standard blue boxes have a slot for letters (up to ½ inch thick) and a separate door for larger parcels. Some newer boxes have a wider opening that accepts packages up to 1 cubic foot. The USPS official glossary notes that “collection boxes are typically 19 inches wide, 14 inches deep, and 44 inches tall, but designs vary.”

Why this matters

A box that’s too small for your package is a wasted trip. Measuring your parcel before heading out — and using the USPS locator to filter by “package acceptance” — saves time.

Can you put a package in a USPS drop box?

Yes, but only if your package meets the size and weight limits. The USPS is very specific about what fits. Packages that exceed these limits must be taken to a staffed post office counter or a self‑service kiosk.

What size package fits in a USPS drop box?

  • First‑Class Mail: up to 13 ounces and ½ inch thick — confirmed by USPS First‑Class Mail page
  • Priority Mail: up to 1 cubic foot (roughly a shoe box) if the drop box has a large door — USPS Priority Mail guidelines
  • Priority Mail Express: only in white Express boxes, prepaid — USPS Express box note

Do drop boxes accept packages without stamps?

No. All packages must have proper postage — either a prepaid label (printed from USPS.com or a third‑party) or stamps affixed. According to the USPS mailing standards, drop boxes do not accept packages that need manual postage calculation.

Bottom line: If your package is thin and under 13 ounces, any blue box works. Heavier or bigger parcels need a larger drop box or a staffed location.

How do I use a USPS drop box?

Using a blue box is straightforward, but a few preparation steps prevent problems. Follow these steps:

  1. Find a drop box near you. Use the USPS Find Locations tool (official locator) — enter your address and filter by “Collection Box.” It shows nearby boxes, their exact addresses, and typical collection times.
  2. Prepare your package correctly.
    • Seal the envelope or box securely. Use tape, not strings.
    • Write the destination address legibly and include a return address.
    • Affix the correct postage — either stamps or a prepaid label.
  3. Check the collection schedule. The pickup time is printed on the box label. The USPS glossary states that “collection times are posted on the box label itself.” If you drop after that time, your item won’t be processed until the next pickup.
  4. Deposit the item. Lift the chute or open the door for packages, place your mail inside, and close securely. For express items, use the white Express box if available.

What are the collection times?

Collection times vary by location. Most boxes are collected once per weekday, typically in the late afternoon. Weekend pickups are less common. The exact hours are printed on each box. Always verify before dropping — the USPS locator tool also displays estimated collection times for each box.

The catch

If you drop a package after the posted collection time, it will sit in the box overnight or over the weekend. Time‑sensitive items should go to a 24/7 self‑service kiosk instead.

Are there USPS package drop‑off locations?

Yes, and they are more flexible than blue boxes. The USPS operates several types of drop‑off points, each with different hours and services. Here’s a quick breakdown.

  • Post Office counters — staffed during business hours, accept any package size, sell postage. Find one via USPS Find Locations (all types).
  • Self‑Service Kiosks — located in many post office lobbies, open 24/7. They accept packages up to 1 cubic foot and print labels. The USPS glossary notes that kiosks also weigh packages and sell stamps.
  • Contract Postal Units (CPUs) — inside retail stores, offer full USPS services at standard prices (USPS location search).
  • Authorized shipping stores — retail partners that accept packages and sell stamps (USPS location search).

What other drop‑off options does USPS offer?

Besides collection boxes, you can drop off packages at any of the above locations. Self‑service kiosks are a great after‑hours option. The USPS glossary describes kiosks as “available 24/7 in many post office lobbies, allowing you to weigh, ship, and drop off packages.” They also provide free USPS boxes.

Can I drop off packages at a post office or self‑service kiosk?

Absolutely. Post offices accept everything during business hours. Self‑service kiosks accept prepaid packages and can print labels on the spot. The USPS glossary adds that you can bring your own packing tape to the kiosk and use free boxes offered by USPS.

The pattern: blue boxes are convenient for standard letters and small prepaid packages, but they have limits. When those limits bite, self‑service kiosks or staffed counters fill the gap.

“I found a drop box using the USPS locator. It was easy.” – r/USPS user comment

“Collection Boxes are the blue boxes found on many street corners that accept letters and small packages.” – USPS FAQ

Confirmed facts

  • USPS blue collection boxes are available nationwide.
  • Collection boxes have posted pick‑up times.
  • Prepaid packages can be dropped off in collection boxes.

What’s unclear

  • Exact collection times on weekends may vary by location.
  • Whether drop boxes are operational during severe weather is not guaranteed.

For anyone shipping a package after hours, the choice is clear: find a blue collection box before the last pickup, or head to a 24/7 self‑service kiosk. The USPS locator tool is your best friend — use it to check hours, box size, and collection schedules before you go.

Related reading: Storage Facilities Near Me: Dublin Prices & Options 2026 · Cheapest Gas Near Me – Best Apps and Tips to Save

To find every USPS drop box near you, use USPS location guide which also lists post office hours and services.

Frequently asked questions

Can I drop off an international package in a USPS drop box?

International packages require customs forms, which must be handed to a clerk at a post office. Drop boxes do not accept them.

Do USPS drop boxes have pick‑up times on holidays?

Collection schedules on holidays vary. USPS observes federal holidays, and regular pickups are typically skipped. Check the box label or call your local post office.

What happens if a package is too large for a drop box?

It will not fit. Take it to a post office counter, a self‑service kiosk, or a Contract Postal Unit.

Can I drop off a package without a prepaid label in a USPS drop box?

No. All items must have proper postage. You cannot pay at a drop box.

Are USPS drop boxes vandal‑proof?

They are sturdy metal boxes, but not invulnerable. Report damage or overflow to USPS Customer Care at 1-800-ASK-USPS.

How do I report a damaged or overflowing drop box?

Call USPS Customer Service at 1-800-275-8777 or use the USPS contact page.

Can I use a USPS drop box for certified mail?

Certified mail requires a signature on delivery. You can drop it in a collection box, but the receipt will be mailed to you separately.

Bottom line: USPS drop boxes are a reliable, free option for letters and small prepaid packages. For larger items or time‑sensitive shipments, use a self‑service kiosk or staffed counter. The official locator tool makes finding the right drop point fast.