Last reviewed: September 2, 2026
United Kingdom is listed in Northern Europe, within Europe. Its capital is London. This page brings together the most commonly needed identifiers and geography facts in one place, with links to related reference lists.
Where is United Kingdom?
For broad geographic classification, United Kingdom is grouped under Europe and the subregion Northern Europe. 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 United Kingdom?
The ISO-style two-letter code shown on this page is GB, while the three-letter code is GBR. 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
United Kingdom has the following land-border entries in our source dataset: Ireland. Island states and countries without a land frontier may show no land borders even though they have maritime neighbors.