How to Use C/O in a Mailing Address

Written by kim blakesley Google
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How to Use C/O in a Mailing Address
Add the c/o line below the recipient's name on an envelop or package. (Envelope for the letter image by Cosmic from

The c/o in an address means "care of." "Care of" refers to the individual who is the primary resident of an address. Use a c/o line in an address when an individual is living with someone else and it is not that individual's main residence, or he wishes to receive mail at an alternate address that is not his own. The c/o line is added to ensure the post office knows that the letter is addressed correctly.

Skill level:


  1. 1

    Write the name of the recipient in the centre of the envelope.

  2. 2

    Write "C/O" and the individual's name who is the main recipient of mail at the address directly under the recipient's name.

  3. 3

    Write the street and apartment address directly under the C/O line.

  4. 4

    Write the city, state and zip code directly under the address.

  5. 5

    Write the return address in the upper left hand corner of the envelope.

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