Border history · 1886–2023

Thailand borders over time

CShapes records 4 changes to the borders of Thailand between 1886 and 2023. It was independent for the whole period. Its territory covers 512,205 km², less than the 778,579 km² it covered in 1886. The largest single change came on October 3, 1893, when it lost about 174,274 km².

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Border changes
4
Area today
512,205 km²
Largest change
−174,274 km² (1893)
Status
Independent
March 10, 1909 – presentChoose a period to see its borders. The dashed line is the period before.

Timeline of Thailand's borders

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

  1. January 1, 1886 – October 2, 1893

    778,579 km²First recorded versionIndependentWorld map in 1886

  2. October 3, 1893 – February 17, 1904

    604,305 km²−174,274 km²IndependentWorld map in 1894

  3. February 18, 1904 – March 22, 1907

    585,590 km²−18,715 km²IndependentWorld map in 1904

  4. March 23, 1907 – March 9, 1909

    552,813 km²−32,777 km²IndependentWorld map in 1907

  5. March 10, 1909 – present

    512,205 km²−40,608 km²IndependentWorld map in 1909

What changed

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

  1. Thailand loses about 174,273 km² of territory.
  2. Thailand loses about 18,715 km² of territory.
  3. Thailand loses about 32,777 km² of territory.
  4. Thailand loses about 40,607 km² of territory.