https://twitter.com/ShinagawaJP/status/1589226094002962433?t=c5mdn5-4YIDPJ69idV-uAg&s=09

ここに総人口の半分が住んでます。
日本の国土面積のわずか4.25%（1.6万㎢）

#30DayMapChallenge Day 3: Polygons - Municipalities with more than 2,500 inhabitants per sqkm of inhabitable land