Border history · 1886–2023

United Kingdom borders over time

CShapes records 1 change to the borders of United Kingdom between 1886 and 2023. It was independent for the whole period. Its territory covers 244,091 km², less than the 313,670 km² it covered in 1886. The largest single change came on December 6, 1921, when it lost about 69,579 km².

Open full mapAll countries
Border changes
1
Area today
244,091 km²
Largest change
−69,579 km² (1921)
Status
Independent
December 6, 1921 – presentChoose a period to see its borders. The dashed line is the period before.

Timeline of United Kingdom's borders

Each period is one border version in CShapes, with its area and the change from the period before.

  1. January 1, 1886 – December 5, 1921

    313,670 km²First recorded versionIndependentWorld map in 1886

  2. December 6, 1921 – present

    244,091 km²−69,579 km²IndependentWorld map in 1922

What changed

Independence, transfers between rulers, and border changes recorded for this country.

  1. United Kingdom loses about 69,579 km² of territory.