Ireland vs Japan

Japan is 5.4 times larger than Ireland — 377,915 against 70,273 km². Japan is 22 times more populous than Ireland — 123,366,734 against 5,484,367 people.

Side by side

Population density

Japan is 4.2 times more densely populated than Ireland — 326 against 78 people per km². Density is where area and population interact, and it often reverses the impression the headline figures give — a large country with a small population can feel emptier than a small crowded one by an enormous margin.

Practical differences

• Different currencies: the Euro and the Japanese yen.
• Different continents — Europe and Asia.

Ireland

The interior is a low limestone plain ringed by coastal mountains, which is why the rivers drain inward and the middle of the country is bog. The Cliffs of Moher run 14 km and reach 214 m. Ireland has no native snakes, and only one native reptile.

Japan

A 2023 government survey using digital mapping counted 14,125 islands, more than double the long-quoted figure of 6,852. About three-quarters of the land is mountain, so nearly everyone lives on a narrow band of coastal plain. Japan sits where four tectonic plates meet and records a fifth of the world's magnitude-6-and-above earthquakes.

Neutral facts only. Nothing here addresses politics, government, economics or which country is preferable in any respect — population is the one figure that dates, and it carries its year.