A complete mailing address for domestic mail includes the person's name, department (if applicable), institution or company (if applicable), street address or post office box, city, state and zip code. An example of a complete domestic mailing address is Ryan Smith, Drama Department, UNC Charlotte, 1149 Boulder St., Charlotte NC 27125.
With regards to international addresses, the city, state and zip code are replaced by a city line. A city line is unique to a country and may incorporate a city, state, province or area and a code. The country's name is also added at the end of the address.
A complete international mailing address is Brenda Boggs, Writing Department, University of Technology, 767 Lent St., Bentley WA 6102, Australia.