Antigua and Barbuda Postal Codes are located here. Antigua and Barbuda zip codes can be accessed by clicking each dependencies.

Dependencies in Antigua and Barbuda

Parishes in Antigua and Barbuda

Antigua and Barbuda on the Map

Antigua and Barbuda zip codes can be seen on the map. All postcodes of Antigua and Barbuda can be viewed under each dependencies.

About Antigua and Barbuda

Geography and Climate

Antigua and Barbuda is a twin-island nation located in the eastern Caribbean Sea, forming part of the Lesser Antilles. It lies near the meeting point of the Caribbean Sea and the Atlantic Ocean, situated southeast of Puerto Rico and north of Guadeloupe. The country comprises the main islands of Antigua and Barbuda along with several smaller islets such as Redonda. Unlike many Caribbean nations, Antigua and Barbuda does not have major mountains or extensive rivers; instead, its landscape is characterized by rolling low hills, flat plains, and a series of bays and natural harbors. The coastline is highly indented, giving rise to hundreds of beaches, which are central to its identity and economy. The climate is tropical maritime, moderated by steady northeast trade winds, with warm temperatures year-round averaging between 24°C and 30°C. Rainfall is relatively low compared to other Caribbean islands, and the country is occasionally affected by hurricanes during the Atlantic hurricane season from June to November.

Brief History and Government

The official name of the country is Antigua and Barbuda, and it is an independent state within the Commonwealth of Nations. After more than three centuries of British colonial rule, the country achieved independence on November 1, 1981, with continued recognition of the British monarch as head of state. It functions as a parliamentary democracy under a constitutional monarchy, where the King of the United Kingdom is represented locally by a Governor-General, and executive power rests with the Prime Minister and Cabinet. The country retains strong historical ties with Britain, including membership in the Commonwealth, and it participates actively in regional organizations such as CARICOM. The capital city is St. John’s, located on the island of Antigua, which serves as the administrative, commercial, and cultural center of the nation.

Population, Language, and Culture

As of 2025, Antigua and Barbuda has an estimated population of approximately 100,000 people, most of whom reside on the island of Antigua, while Barbuda is much less densely populated. The official language is English, which is used in education, government, and media, though Antiguan Creole, a local English-based dialect, is commonly spoken in everyday life. The population is largely of African descent, reflecting the legacy of the transatlantic slave trade during the colonial plantation era. The culture is vibrant and deeply rooted in Afro-Caribbean traditions, with strong influences from British colonial history. A distinctive cultural hallmark is the annual Carnival of Antigua, celebrated with colorful costumes, steel band music, and calypso competitions, which commemorates the abolition of slavery. Cricket is also an important cultural and sporting tradition, with the country producing world-renowned players such as Sir Vivian Richards.

Economy and Currency

The economy of Antigua and Barbuda is primarily driven by tourism, which accounts for the majority of GDP and employment. The islands’ white sandy beaches, luxury resorts, and yachting facilities make the country a major destination for high-end travelers, especially from North America and Europe. Other contributors to the economy include offshore financial services, construction, and agriculture, though the latter plays a relatively minor role due to limited arable land and vulnerability to drought. The government has actively promoted investment in the tourism and services sectors to diversify economic activity. The official currency is the Eastern Caribbean dollar (XCD), which is shared with several other members of the Eastern Caribbean Currency Union and is pegged to the U.S. dollar, providing monetary stability.

The Postal Code System

Postal services in Antigua and Barbuda are operated by the General Post Office (GPO) under the Ministry of Communications. The country introduced a postal code system in 2006, designed to improve the efficiency of mail delivery. Postal codes in Antigua and Barbuda consist of six alphanumeric characters, structured in the format CCNNNN, where the first two letters (CC) represent the island and parish, followed by a four-digit number indicating specific areas or districts. For example, addresses in St. John’s, the capital, often begin with “AG” followed by the numerical sequence, such as AG001101 for certain neighborhoods. Barbuda has its own distinct codes beginning with “BB,” allowing mail to be sorted separately from Antigua. Despite the introduction of this system, in practice, many residents continue to rely on descriptive addressing that includes the recipient’s name, village, or landmark, especially in rural areas with no street numbering. Nevertheless, the standardized code system ensures compatibility with international mail networks and has improved postal logistics for businesses and government services.