Observed arrival · 2026-11-09
まちの人口くらべ: Japan’s municipal population comparison
A Japanese-language public-data tool for comparing population, household, age-structure, and annual population changes across prefectures and municipalities.
○Open
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People comparing demographic trends across Japanese municipalities
- Worth noticing
- The figures distinguish natural change from social change and show foreign-resident share alongside age structure.
Field notes
The national view pairs a population pyramid in five-year age bands, with a prior-year line, and a prefecture table whose columns can be sorted. The page identifies the Basic Resident Register as its source, with a January 1, 2026 reference date, and says annual movement figures cover 2025. It lists 47 prefectures and 1,741 municipalities; municipality search includes designated-city wards.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
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