The Americas
This list of national postal services shows the individual national postal administrations of the world's states.
A post office is a public facility and a retailer that provides mail services, such as accepting letters and parcels, providing post office boxes, and selling postage stamps, packaging, and stationery. Post offices may offer additional services, which vary by country. These include providing and accepting government forms, and processing government services and fees. The chief administrator of a post office is called a postmaster.
The United States Postal Service (USPS), also known as the Post Office, U.S. Mail, or Postal Service, is an independent agency of the executive branch of the United States federal government responsible for providing postal service in the U.S., its insular areas, and its associated states. It is one of the few government agencies explicitly authorized by the Constitution of the United States. As of 2023, the USPS has 525,469 career employees and 114,623 non-career employees.
A ZIP Code is a system of postal codes used by the United States Postal Service (USPS). The term ZIP was chosen to suggest that the mail travels more efficiently and quickly when senders use the code in the postal address.
Postal codes used in the United Kingdom, British Overseas Territories and Crown dependencies are known as postcodes. They are alphanumeric and were adopted nationally between 11 October 1959 and 1974, having been devised by the General Post Office. A full postcode is known as a "postcode unit" and designates an area with several addresses or a single major delivery point.
A Canadian postal code is a six-character string that forms part of a postal address in Canada. Like British, Irish and Dutch postcodes, Canada's postal codes are alphanumeric. They are in the format A1A 1A1, where A is a letter and 1 is a digit, with a space separating the third and fourth characters. As of October 2019, there were 876,445 postal codes using Forward Sortation Areas from A0A in Newfoundland to Y1A in Yukon.
Royal Mail Group Limited, trading as Royal Mail, is a British postal service and courier company. It is owned by International Distributions Services. It operates the brands Royal Mail and Parcelforce Worldwide (parcels). The company used the name Consignia for a brief period in the early 2000s.
Australia Post, formally known as the Australian Postal Corporation, is a Commonwealth government-owned corporation that provides postal services throughout Australia. Australia Post's head office is located on Bourke Street, Melbourne, above the Bourke Street Post Office.
Spanish postal codes were introduced on 1 July 1984, when the Sociedad Estatal de Correos y Telégrafos introduced automated mail sorting. They consist of five numerical digits, where the first two digits, ranging 01 to 52, correspond either to one of the 50 provinces of Spain or to one of the two autonomous cities on the African coast.
A post office box is a uniquely addressable lockable box located on the premises of a post office.
An address is a collection of information, presented in a mostly fixed format, used to give the location of a building, apartment, or other structure or a plot of land, generally using political boundaries and street names as references, along with other identifiers such as house or apartment numbers and organization name. Some addresses also contain special codes, such as a postal code, to make identification easier and aid in the routing of mail.
Hongkong Post is a government department of Hong Kong responsible for postal services, though operated as a trading fund. Founded in 1841, it was known as Postal Department or Post Office before the handover of Hong Kong in 1997. It has been a sub-member of the Universal Postal Union since 1877, and is a separate entity from China Post.
A post box, also known as a collection box, mailbox, letter box or drop box, is a physical box into which members of the public can deposit outgoing mail intended for collection by the agents of a country's postal service. The term post box can also refer to a private letter box for incoming mail.
A pillar box is a type of free-standing post box. They are found in the United Kingdom and its associated the Crown Dependencies and British Overseas Territories, and, less commonly, in many members of the Commonwealth of Nations such as Cyprus, India, Gibraltar, Hong Kong, Malta, New Zealand and Sri Lanka, as well as in the Republic of Ireland. Pillar boxes were provided in territories administered by the United Kingdom, such as Mandatory Palestine, and territories with agency postal services provided by the British Post Office such as Bahrain, Dubai, Kuwait and Morocco. The United Kingdom also exported pillar boxes to countries that ran their own postal services, such as Argentina, Portugal and Uruguay.
CTT – Correios de Portugal, S.A. is a Portuguese company that operates as both the national postal service of Portugal and a commercial group with subsidiaries operating in banking, e-commerce, and other postal services. It was founded in 1520 by King Manuel I of Portugal, during the Portuguese Renaissance, and CTT is the oldest company still in operation in Portugal to this day.
The postal history of Morocco is complex due to the country's political development in the 20th century. Mail was sent via post offices operated by the Sherifian post created by the Sultan, and by the European powers. After Morocco was partitioned into protectorates of France and of Spain in 1912, both European administrations established postal services in their respective zones.
Postcodes in Australia are used to more efficiently sort and route mail within the Australian postal system. Postcodes in Australia have four digits and are placed at the end of the Australian address, before the country. Postcodes were introduced in Australia in 1967 by the Postmaster-General's Department and are now managed by Australia Post, Australia's national postal service. Postcodes are published in booklets available from post offices or online from the Australia Post website.
A postal museum is a museum dedicated to the display of objects relating to the postal service. A subcategory of postal museums are philatelic museums, which focus on philately and postage stamps.
The Royal Gibraltar Post Office is the postal services in the British overseas territory of Gibraltar. It is currently a department within the Government of Gibraltar.
Postal codes in Hungary are four-digit numeric postcodes administered by Magyar Posta, the postal service of Hungary. The current system was introduced on 1 January 1973.
The Official Post Service of the Argentine Republic is the state-owned company that covers the postal service in Argentina. The company is a S.A. under the country's Office of the Cabinet Chief.