Border history · 1918–2023

Poland borders over time

CShapes records 5 changes to the borders of Poland between 1918 and 2023. It was independent for the whole period. Its territory covers 311,677 km², more than the 130,204 km² it covered in 1918. The largest single change came on March 18, 1921, when it gained about 103,780 km².

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Border changes
5
Area today
311,677 km²
Largest change
+103,780 km² (1921)
Status
Independent
May 8, 1945 – presentChoose a period to see its borders. The dashed line is the period before.

Timeline of Poland's borders

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

  1. November 11, 1918 – June 27, 1919

    130,204 km²First recorded versionIndependent

  2. June 28, 1919 – September 9, 1919

    177,762 km²+47,558 km²IndependentWorld map in 1919

  3. September 10, 1919 – October 6, 1920

    256,573 km²+78,811 km²IndependentWorld map in 1920

  4. October 7, 1920 – March 17, 1921

    284,598 km²+28,025 km²Independent

  5. March 18, 1921 – May 7, 1945

    388,378 km²+103,780 km²IndependentWorld map in 1921

  6. May 8, 1945 – present

    311,677 km²−76,701 km²IndependentWorld map in 1945

What changed

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

  1. Poland becomes an independent state.
  2. Poland gains about 126,369 km² of territory in 2 separate changes during the year.
  3. Poland gains about 28,024 km² of territory.
  4. Poland gains about 103,780 km² of territory.
  5. Poland loses about 76,701 km² of territory.