Last reviewed: September 2, 2026
Antigua and Barbuda is listed in Caribbean, within Americas. Its capital is Saint John's. This page brings together the most commonly needed identifiers and geography facts in one place, with links to related reference lists.
Where is Antigua and Barbuda?
For broad geographic classification, Antigua and Barbuda is grouped under Americas and the subregion Caribbean. Regional labels can vary between statistical and geographic organizations, so this site uses one consistent classification for browsing rather than claiming there is only one valid convention.
What are the country codes for Antigua and Barbuda?
The ISO-style two-letter code shown on this page is AG, while the three-letter code is ATG. Two-letter codes are especially common in software, forms and country-code domains; three-letter codes are useful where a more recognizable abbreviation is preferred. See our country code guide for context.
Borders and nearby geography
Antigua and Barbuda has the following land-border entries in our source dataset: No land borders listed. Island states and countries without a land frontier may show no land borders even though they have maritime neighbors.