The population in Motoyama was 7,343 in 1965, but as of 2008 it has gone down to 4,110 and continues to decrease [REF].
According to the 2005 census: the population of people 15 years old and under is 417, the population of those 65 years and over is 1,657 and the percentage of seniors in Motoyama is 38% compared to the prefectural average of 26%.