人口(じんこう)減少(げんしょう)

じんこうげんしょう
noun
population decline; depopulation
1. population decline; depopulation
A decrease in the number of people living in a country, region, or area. A major social issue in Japan, where the declining birth rate and aging population are driving significant population loss.
人口(じんこう)減少(げんしょう)が進(すす)んでいる。
Population decline is progressing.
地方(ちほう)の人口(じんこう)減少(げんしょう)が深刻(しんこく)だ。
Population decline in rural areas is serious.
日本(にほん)は人口(じんこう)減少(げんしょう)社会(しゃかい)に入(はい)ったと言(い)われている。
Japan is said to have entered an era of population decline.
人口(じんこう)減少(げんしょう)に歯止(はど)めをかけるための対策(たいさく)が急(いそ)がれている。
Measures to halt population decline are urgently needed.

One of the most discussed social issues in modern Japan. Japan's population peaked around 2008 and has been declining since, driven by a low birth rate (少子化(しょうしか)) and an aging population (高齢化(こうれいか)). This term appears constantly in news, policy discussions, and social commentary.

COMMON COLLOCATIONS:

  • 人口(じんこう)減少(げんしょう)社会(しゃかい): depopulating society
  • 人口(じんこう)減少(げんしょう)問題(もんだい): depopulation problem
  • 人口(じんこう)減少(げんしょう)に歯止(はど)めをかける: to put a stop to population decline
  • 急速(きゅうそく)な人口(じんこう)減少(げんしょう): rapid population decline
  • 人口(じんこう)減少(げんしょう)対策(たいさく): measures against population decline

RELATED TERMS:

  • 少子化(しょうしか): declining birth rate — one of the main drivers of population decline
  • 高齢化(こうれいか): population aging — the other major driver
  • 過疎化(かそか): depopulation of rural areas — specific to the emptying of countryside communities
  • 人口(じんこう)増加(ぞうか): population growth — the opposite trend
general
Added 2026.4.19 1:24
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