Put the recipient’s name on the first line
Put the street address on the second line
Put the city, state, and ZIP code on the third line
Use commas between the city and state and after the state if the sentence continues
Do not use a comma between the state and ZIP code
Use a colon after the salutation in a business letter
Use a comma after the salutation in a personal letter
Use a comma after the closing in a letter
Do not add punctuation at the end of each address line
Use periods in abbreviations such as St., Ave., Blvd., Apt., and P.O. Box
Put the country on a separate line for international addresses
Use the proper postal format for the destination country