1.
population density
The number of people living per unit area, typically expressed as people per square kilometer. A standard geographic and demographic term.
東京は人口密度が高い。
Tokyo has a high population density.
この地域の人口密度は1平方キロメートルあたり約300人だ。
The population density of this area is about 300 people per square kilometer.
都市部の人口密度が上がり続ける一方で、地方では過疎化が進んでいる。
While population density in urban areas keeps rising, depopulation is advancing in rural areas.
USAGE NOTES:
人口密度 is a compound of 人口 (population) and 密度 (density). It is used in geography, news, and everyday conversation about urban crowding.
COMMON COLLOCATIONS:
- 人口密度が高い (population density is high)
- 人口密度が低い (population density is low)
- 世界一の人口密度 (the world's highest population density)
Japan's overall 人口密度 is among the highest in the world, but there is a stark contrast between densely packed urban areas like 東京 and sparsely populated rural regions.