There have been established in Zhejiang 2 cities of vice-provincial governor level namely Hangzhou and Ningbo, 9 cities of regional level namely Wenzhou, Huzhou, Jiaxing, Shaoxing, Jinhua, Quzhou, Zhoushan, Taizhou and Lishui, 36 counties, 22 cities of county level, 32 urban districts subordinated to different cities, 837 towns, 562 villages and 212 residential districts. The province has a population of 46.47 million, among which 400,000 belong to ethnic minority groups, which occupies 0.86% of the total population. The She group  is the largest ethnic minority in the province. According to the statistics of the fifth census in the year 2000, senior citizens above ages of 65 takes 8.9% in the whole population of the province. Zhejiang has entered the stage of an aged society.