مساحة الأرض هي إجمالي مساحة الدولة باستثناء المساحة الوقاعة تحت سيطرة هيئات المياه الداخلية.

مساحة الأرض (كيلومتر مربع)

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بروناي دار السلام5,2705,2705,2705,2705,2705,2705,2705,2705,2705,2705,2705,2705,2705,2705,2705,2705,270
كمبوديا176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520176,520
الصين9,388,2509,388,2509,388,2209,388,2129,388,2119,388,2119,388,2119,388,2119,388,2119,388,2119,388,2109,388,2109,388,2109,388,2109,388,2109,388,2109,388,210
إندونيسيا1,811,5701,811,5701,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,877,5191,892,5551,892,555
اليابان366,700364,600364,500364,500364,500364,500364,500364,500364,500364,500364,500364,500364,500364,500364,500364,500364,500
جمهورية كوريا96,46096,46096,46096,85097,20097,19097,31097,42697,43097,44597,48997,51097,52097,60097,60097,60097,600
جمهورية لاو الديمقراطية الشعبية230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800230,800
ماليزيا328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550328,550
ميانمار653,540653,540653,540653,360653,260653,290653,150653,080653,080653,080652,780652,750652,700652,700652,670652,670652,670
الفلبين298,260298,170298,170298,170298,170298,170298,170298,170298,170298,170298,170298,170298,170298,170298,170298,170298,170
سنغافورة670670670689702704706707709709709712714716718718718
تايلاند510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890510,890
فييتنام325,490325,490311,060312,837313,294313,284313,457313,007313,371313,383313,387313,403313,429313,429313,429313,429313,429