If you're not sure how to address an envelope, you're not alone. Plenty of people pay rent online and email everything else, so the first time they need to mail a real letter — a birthday card, a check, a job application — they stare at a blank envelope and draw a blank.

The good news: there is exactly one right layout, and it takes about two minutes to learn. Here it is.

Labeled envelope layout diagram showing the sender address in the top-left corner, the recipient address centered, and the stamp in the top-right corner
The three zones of a properly addressed envelope: return address top-left, recipient centered, stamp top-right.

The three zones of an envelope

Before you write anything, know where everything goes. Every US envelope has three zones:

  1. Top-left corner: your return address (the sender).
  2. Center: the recipient's address. The sorting machines read this first.
  3. Top-right corner: the postage stamp. Keep that corner clear.

If the machines can't make sense of the center of the envelope, your letter gets delayed or sent back — which is exactly why the return address matters.

Step 1: Write your return address in the top-left corner

In the upper-left corner, write your full name on the first line, your street address on the second, and your city, state, and ZIP on the third:

“` Jamal Rivera 1420 Birchwood Ave, Apt 4B Austin, TX 78745 “`

You can technically skip the return address, but don't. If the recipient moved or you mistyped a ZIP, the letter comes straight back to you instead of vanishing into a dead-letter pile.

Step 2: Write the recipient's address in the center

Center this block about halfway down the envelope, one piece of information per line:

“` Mrs. Dana Whitfield 8900 Harbor View Drive, Suite 210 Seattle, WA 98101 “`

Name first — full name, spelled the way the person writes it. For a business, use the company name plus a person or department ("Attn: Priya Sharma," "Customer Service") so it lands on the right desk.

Line two is the street address, all of it: house or building number first, then street name, then the apartment, suite, or unit number. "1420 Birchwood Ave" alone won't cut it in an apartment building — without "Apt 4B," your letter reaches the building and stops.

Step 3: Keep city, state, and ZIP on one line

The bottom line has a strict format: city, state, ZIP — in that order, all on one line. Write the state as its two-letter abbreviation (TX, not Texas) and double-check the ZIP. Sorting machines route mail primarily by ZIP, so a wrong digit can send your letter to the wrong state before anyone notices.

Know the full ZIP+4 (like 78745-2130)? Use it — it speeds up sorting. If not, the standard five digits work fine.

Step 4: Put the stamp in the top-right corner

One First-Class stamp goes in the upper-right corner. The scanners expect postage there; a stamp anywhere else can force manual handling and slow things down.

One stamp covers a standard letter (one ounce or less) anywhere in the US. A heavier envelope needs additional postage. When in doubt, have it weighed at the post office. A letter returned for insufficient postage often loses a week.

Common mistakes that delay mail

  • Mixing up the zones. The scanner reads the center as the destination. A centered return address sends the letter to the wrong place — or back to you.
  • Sloppy handwriting. The machines read clear printed capitals best. Write in dark ink, and skip the glitter pen. Truly illegible? A printed label works better.
  • Abbreviating the state wrong. "Cal." or "Cali" instead of CA can confuse automated systems. Use the official two-letter abbreviations.
  • Forgetting the unit number. The most common reason a letter reaches the right building and never finds the person.
  • Putting the stamp anywhere creative. Top-right. That's it.

Personal vs. business envelopes

The layout never changes — only the details. Business mail adds the company name and department in the recipient block, and the return address carries the company name and office address instead of a home address. If you're mailing a check, it helps to know how to write a check correctly first — a properly written check in a properly addressed envelope means zero delays on either end.

And if you put things in writing more than most — maybe you're working on a novel — this beginner's roadmap to writing a book breaks that process into steps as plain as these.

Frequently Asked Questions

Does the return address have to be in the top-left corner?

It's not legally required, but it's the standard USPS expects. Without it, a letter that can't be delivered has nowhere to go back to. Always include it for anything you don't want to lose.

What happens if I put the stamp in the wrong place?

The letter may still go through, but automated sorters look for postage in the top-right corner. A misplaced stamp can force manual processing, which slows delivery — or the envelope gets flagged and returned.

Can I type the address instead of handwriting it?

Yes — and typed or printed addresses are actually easier for sorting machines to read. A clean printed label is perfectly acceptable, often more reliable than shaky handwriting.

Do I need the full nine-digit ZIP code?

No. The standard five-digit ZIP works fine. ZIP+4 just helps the post office sort a little faster. If you know it, use it; if not, don't worry about it.