A full address puts the recipient name, street line, city line, and postal code in the country’s expected order so mail arrives without delays.
Writing an address sounds simple until a parcel bounces back or a letter drifts around for weeks. Most delivery errors come from tiny slip-ups: a missing unit number, the wrong postal code, or lines that are out of order.
This walkthrough gives you a clean, repeatable way to write a full address on envelopes, labels, and online forms, plus country-by-country patterns you can copy.
Once you learn the line order, how to write a full address becomes quick and repeatable, even when you’re mailing to a new country.
Full Address Parts And Where They Go
| Address Part | What To Write | Placement Tip |
|---|---|---|
| Recipient Name | Full name or name + title | Top line; match the name on the mailbox when possible |
| Company Or Department | Company name, then ATTN line if needed | Above the street line; keep each item on its own line |
| Street Address Line | House/building number + street name | Main delivery line; avoid extra punctuation |
| Unit Line | APT/Suite/Unit + number | End of the street line or on the next line, not buried in notes |
| Locality Line | Neighborhood, district, or village (only if used locally) | Use a separate line only when it helps carriers in that area |
| City Or Town | City/town name (official spelling) | Often shares a line with state/province and postal code |
| State/Province/Region | State abbreviation or province/region name | Keep it close to the city name; don’t hide it on another line |
| Postal Code | ZIP/postcode/pin code | Put it on the last domestic line; double-check digits |
| Country | Country name in English (or the destination’s common English name) | Last line for international mail, in all caps if you like |
How To Write A Full Address In The Right Order
Start at the top with who it’s for, then move down to where it’s going. Keep the delivery block in one tight stack, left aligned, with one idea per line.
If you’re typing, stick to plain letters and numbers. If you’re handwriting, use a dark pen and steady spacing so scanners and humans can read it fast.
Default Five-Line Template
Use this as your base. Add or remove one line only when the destination needs it.
Recipient Name Street Number Street Name APT 4B City State/Province Postal Code COUNTRY (international only)
When A Company Or Department Is Involved
Put the company first when the location is a workplace, campus, or large building. Add a department line so it lands on the right desk.
Company Name ATTN: Recipient Name Street Number Street Name STE 120 City State/Province Postal Code
Street Line Rules That Prevent Returned Mail
The street line does the heavy lifting. Keep it clean and direct: number, street name, and the right street type. Skip extras like landmarks or long directions that don’t appear in the official mailing address.
House Number And Street Name
- Write the building or house number first.
- Then write the street name as locals use it on signs and bills.
- Use standard street types when you know them (Street, Road, Avenue).
If the location uses a building name more than a number, place the building name on the street line and put the street name right under it.
Apartment, Suite, Unit, Floor
Missing unit details is a classic reason mail gets stuck at a building lobby. Put the unit designator right after the street line or on the next line.
- Use the label people expect: APT, STE, UNIT, FL, RM.
- Write the unit number clearly: “APT 12” beats “#12”.
- If you’re mailing in the United States, USPS prefers clear designators like APT or STE over symbols.
P.O. Box Addresses
A P.O. Box is a delivery address by itself. Don’t pair it with a street address unless the recipient gave you that exact setup for that post office.
Recipient Name PO BOX 123 City State/Province Postal Code
Rural Routes And Areas Without Street Numbers
Some regions still use route names, village names, and delivery points instead of street numbers. Keep the line order the same: recipient, delivery line, then locality line(s), then the postal code line.
City Line Details: City, Region, Postal Code
This is the line sorting machines lean on. Treat it like you’re entering a password: one wrong character can send the item to the wrong place.
Use Official City Spelling
Go with the city name the postal service recognizes, not a nickname. If you’re unsure, look up the postal code and use the city spelling tied to it.
Keep Region And Postal Code Close
- Many countries put the postal code at the end of the city line.
- Some place the postal code on its own line or before the city name.
- When you’re mailing inside the United States, USPS describes the city, state, and ZIP sequence in its Addressing Your Mail rules.
Country Line And International Addresses
For international mail, the last line should be the destination country. Write it in English in all caps. Keep everything above it in the destination’s preferred order when you know it.
If you only know your own country’s order, that’s still fine. Make the postal code and country line correct, then keep the block neat.
Return Address Placement That Gets Mail Back To You
Use a return address so the item can come back to you if delivery fails. Place it in the top-left corner of the envelope, or on the back flap if the destination rules call for that layout.
Write the return address in the same line style as the destination address. Keep it smaller so it doesn’t compete with the delivery block.
Care-Of, Mail Stop, And Building Notes
Use short routing hints when the name on the mailbox won’t match the recipient.
- c/o (care of) goes under the name when the recipient is staying with someone else.
- Room or mail stop details go above the street line for offices and campuses.
- Skip long instructions like “ring bell twice” in the address block.
Recipient Name c/o Host Name Street Number Street Name City State/Province Postal Code
Handwriting And Print Style
If you’re writing by hand, use block letters and give each line breathing room. Skip cursive. A clean address block beats fancy handwriting every time.
- Use dark ink, not pencil.
- Keep letters upright and avoid touching lines together.
- Write postal codes and postcodes with extra care.
Address Formats By Country You Can Copy
Below are reliable patterns for common destinations. Keep punctuation light, keep lines left aligned, and don’t add extra words that aren’t part of the mailing address.
United States
Name Street Number Street Name APT 4B CITY ST ZIP
- Use the two-letter state abbreviation on the city line.
- Use ZIP+4 when you have it; it helps routing in busy areas.
United Kingdom
Name House Number Street Name POST TOWN POSTCODE UNITED KINGDOM (international only)
- Keep the postcode accurate and easy to spot.
- Royal Mail’s clear addressing tips are on its help page for addresses and return addresses.
Canada
Name Street Number Street Name CITY PROVINCE POSTAL CODE
- Leave one space in the middle of the postal code (A1A 1A1).
- Keep city, province, and postal code on one line.
Australia
Name Street Number Street Name SUBURB STATE POSTCODE AUSTRALIA (international only)
Suburb names matter in Australia. Put the suburb on the city line with the state abbreviation and postcode.
India
Name House/Flat, Street/Area City District State PIN INDIA (international only)
Add the PIN at the end of the city line. If the area is large, include the district so local delivery staff can route it faster.
Bangladesh
Name House/Building, Road, Area Thana/Upazila, District Postal Code BANGLADESH (international only)
In many cities, the thana or upazila name helps routing. Keep the postal code on the same line as the district when it fits.
Common Full Address Mistakes And Quick Fixes
Most fixes take ten seconds. Do this check before you seal the envelope or click “buy postage.”
| Mistake | Why It Slows Delivery | Quick Fix |
|---|---|---|
| Postal code missing or wrong | Sorting sends it to the wrong route | Look up the code and rewrite the city line |
| Unit number left out | Carrier can’t finish the drop | Add APT/STE/UNIT on the street line |
| Extra commas, slashes, emojis | Optical scanners misread lines | Use plain text with clean spacing |
| Lines centered or scattered | Sorting expects a tight block | Left align the whole address block |
| Country missing on international mail | It can stall in export handling | Add the country as the last line in caps |
| Using nicknames for cities | Databases match official spellings | Use the city name tied to the postal code |
| Return address looks like the destination | Mail can be routed back by mistake | Place return address top-left in smaller text |
| Label covers barcodes or seams | Scanners miss tracking codes | Place labels flat on a clean surface |
Writing An Address On Envelopes, Parcels, And Forms
Envelopes
- Put the destination block on the front, centered-left area.
- Keep the stamp area clear in the top-right corner.
- Leave a little blank space under the block for sorting marks.
Parcels And Shipping Labels
Use a printed label when you can. A smudged marker on a glossy box is a recipe for reroutes.
- Tape over the whole label only when the carrier allows it and the barcode stays scannable.
- Put a second copy of the destination details inside the box or under the top flap when shipping valuable items.
- Keep “fragile” notes away from the address block so they don’t crowd the lines.
Online Forms
Forms split the address into fields. Use them as they’re meant to be used:
- Address line 1: street number and street name.
- Address line 2: apartment, suite, floor, building, care-of.
- City: official city name.
- State/Province: pick from the dropdown when possible.
- Postal code: double-check every digit.
- Country: choose the destination country, not your own.
If a form offers an extra address line, leave it blank unless the recipient gave you that exact line. Extra lines can push the city or postal code out of place.
Mini Checklist Before You Send
- Name is spelled right and matches the mailbox when that matters.
- Street line has the number, street name, and unit details.
- City line matches the postal code database.
- Country line is present for international mail.
- Return address is present and placed away from the destination block.
- Label is flat, readable, and not folded over an edge.
If you follow the line order, keep the text clean, and verify the postal code, you’ll dodge the mistakes that cause most delivery delays. That’s how to write a full address that gets read right the first time.