Address the envelope as follows (example):
Recipient Name
Street Address (include apartment/unit number)
City, State/Province ZIP/Postal Code
Country (if sending internationally)
Use the recipient’s full name and correct spelling
Use the full street address including:
Street number
Street name
Direction (N, S, E, W) if applicable
Apartment, suite, unit, or box number
Format city/state/ZIP (US example):
City, ST ZIP
Example: Austin, TX 78701
For international mail, format as:
Recipient Name
Street Address
Postal Code City
Country (in all caps)
Place the return address in the top-left corner:
Return Name or Organization
Return Street Address
Return City, State/Province ZIP/Postal Code
Return Country (if applicable)
Place postage in the top-right corner
Ensure the address is parallel to the longest side of the envelope
Use a clear, legible font or handwriting in dark ink
Capitalize key address lines (city/state/country) if handwriting
Keep abbreviations consistent with local postal standards (use standard postal abbreviations for state/province if applicable)
Include “ATTN:” or “c/o” when needed:
Recipient Name (or Organization)
ATTN: Department/Person
Street Address
City, State ZIP
If using a PO Box:
Recipient Name
PO Box Number
City, State ZIP
Country (if applicable)