How to Format a US Domestic Package Address
A practical labels & addressing guide to format a us domestic package address, with a repeatable method, worked example, checklist, limitations, and official source links.
Quick answer
Build a domestic package address from verified data in this order: recipient or organization name, complete delivery address including any secondary unit, then the USPS-recognized city, two-letter state abbreviation, and ZIP Code or ZIP+4. Keep the delivery block together and readable. Put the return address in the upper-left area and the delivery address below and to its right on the same package face. Use USPS ZIP Code Lookup rather than guessing a spelling or code.
Collect the address from the recipient
Ask for a mailing address, not merely a location shared from a map. Confirm the recipient name used by the building, street number and name, predirectional or postdirectional where applicable, street suffix, apartment or suite, city, state, and ZIP Code. For a business, confirm department, floor, mail stop, or receiving instructions through the organization.
A complete address depends on the USPS delivery record. The current DMM 602 addressing standards explain complete address elements. Publication 28 provides postal addressing standards, including street suffixes, directionals, and secondary unit designators.
Basic domestic block
| Line | Content | Example placeholder |
|---|---|---|
| 1 | Recipient or company name | RECIPIENT NAME |
| 2 | Primary delivery address and secondary unit | 123 MAIN ST APT 4B |
| 3 | City, state abbreviation, ZIP Code | ANYTOWN NY 12345-6789 |
The example is a format placeholder, not a real destination. Generate the actual block from recipient-confirmed information and the official USPS ZIP Code Lookup. Do not invent ZIP+4 digits or “correct” a valid local name from memory.
Format and verify
- Standardize from an official result. Preserve apartment, suite, PMB, rural route, PO Box, Puerto Rico urbanization, or military elements exactly as applicable.
- Use readable type. Print or write in dark permanent ink on a light area. USPS consumer guidance recommends neat capital letters for handwritten packages.
- Keep lines aligned. Do not scatter a unit number near the recipient name or put delivery notes inside the city-state-ZIP line.
- Compare character by character. Check house number, directional, street, suffix, unit, city, state, and ZIP against the approved source.
- Protect privacy. Destroy misprints and redact names, addresses, tracking numbers, and barcodes before sharing a photo.
- Add an interior card. When appropriate, place matching recipient and sender information inside as backup.
Place the block on a package
USPS says on its package addressing page to place the address parallel to the longest side, with return address, delivery address, and postage on the same side. Printed labels should not be folded over an edge, bent, overlapped, or placed across a seam. Use the generated label’s layout rather than cutting apart barcode and address elements.
Special domestic formats
Puerto Rico addresses may require an urbanization line. U.S. Virgin Islands, rural route, highway contract route, PO Box, private mailbox, and APO/FPO/DPO formats have distinct elements. A military address should not be rewritten as an overseas street address. Follow the current USPS format for the exact type and use the ZIP returned by its tools.
A private mailbox at a commercial mail receiving agency is not a USPS PO Box. DMM 602 addresses the correct PMB or number designation. When the address combines a street and PO Box, delivery treatment can depend on line order and matching ZIP information; confirm with the recipient or USPS.
Pre-purchase checklist
- Recipient confirmed the complete mailing address and unit.
- USPS ZIP Code Lookup result was reviewed.
- Recipient, delivery line, and city-state-ZIP remain one coherent block.
- Return address and required package markings are present.
- No old address, barcode, postage, or routing sticker remains visible.
- Label lies flat on one suitable face and matches purchased postage.
Limitations
This guide cannot verify that a person lives at an address, guarantee deliverability, or cover every special address. USPS products, local addressing records, required elements, and label systems change. Use the current official lookup and DMM, and confirm unusual formats with USPS or the recipient. An address that looks standardized can still be wrong. Never alter a destination to obtain a preferred price, bypass restrictions, or conceal the true sender.