This study classifies municipalities according to the demography of the population aged 75 and over, and identifies the years in which the population aged 75 and over peaks in each municipality. We classified the population dynamics of the 75 years old and over in municipalities into ten types and showed them on a national map. We found that 14.45% of the target municipalities have already reached their peak, and that 40.31% of them will reach their peaks in 2030. This means that around 2030 is the period of maximum demand for senior care facilities in Japan.
