Some Puerto Rico addresses include an urbanization or community code for a specific area or development. Include the following on separate lines:Īdvanced Tips for Secondary Addresses (like Apartment or Suite) Postal Addressing Standards Special U.S. Write the delivery address (the 'recipient' address) in the bottom center of the envelope. Write your address (the 'return address') in the top-left corner. Include the ZIP+4 ® Code whenever possible.Print addresses neatly in capital letters.Print your return address and the delivery address clearly, in the correct spots, to make sure your mail is delivered on time.

Size & Weight Requirements – Postcards & Envelopes

Standard postcards are usually made of paper, are between 5' to 6' long and 3-1/2' to 4-1/4' high, and are between 0.007' and 0.016' thick. Save money using a $0.48 postcard stamp to send a standard-sized postcard anywhere in the U.S. Postcards are for short messages that you don't need to put in an envelope. ( See additional postage in Step 3.) You'll also have to pay more if your envelopes are square or vertical (taller than they are wide). TIP: If your envelope can't fit through USPS mail processing machines, or is rigid, lumpy or has clasps, string, or buttons, it's 'nonmachinable' and you'll have to pay $0.40 more to send it.

If your large envelope is nonrectangular, rigid (can't bend), or lumpy (not uniformly thick), you'll have to pay the package price. If you want to send letter-sized papers without folding them, you can use a large envelope (called a 'flat') the postage for flats starts at $1.26. 10 envelope is 9-1/2' long x 4-1/8' high.) You can fold what you put in your envelope, but it needs to stay flat-no more than 1/4' thick. Your envelope can be a maximum of 11-1/2' long x 6-1/8' high. You can also pan and zoom the map to find mailboxes anywhere in the United States.Envelopes must be rectangular and made of paper to qualify for letter prices.

Type any location in the field above, or click the GPS button to automatically find mailboxes near you.

Post office drop box