Geographic Trend Analysis of Depopulated and Aging Areas in Saga Based on Web-browsing Community Database

Depopulation and aging of agricultural settlements due to the lacking in heir and the aging of residents has been becoming a major concern in planning the system of regional disaster prevention. To reveal the geographic characteristics of the depopulation and the aging in agricultural areas, we investigated the demographic characteristics in Saga prefecture based on web-browsing community database. Although only one precinct currently indicated high population aging rate more than 50%, we found that 50 precincts has high potential of becoming such aging precinct within 10 years. Additionally, local depopulation and aging are detected in urban areas such as shopping streets near station and aging public housings.