上海市黄浦区地处市中心,全区面积仅4.1平方公里,至1996年底,常住户口26.7万人,并有两大特点:一、流动人口多.二、人口老龄化进程快,1994年时,老龄人口已占24%,预计到2000年将达25%.改革开放以来,特别是90年代以来,黄浦区经济和社会发展迅速,社会主义市场经济体制逐步建 Shanghai Huangpu District is located in the center of the city. The area of ​​the whole area is only 4.1 square kilometers. By the end of 1996, the permanent residence accounted for 267,000 people. It has two major characteristics: First, there are many floating populations. Second, the process of aging population is fast. In 1994, The old-age population already accounts for 24%, and it is expected to reach 25% by the year 2000. Since the beginning of reform and opening up, especially since the 1990s, economic and social development in Huangpu District has been rapid, and the socialist market economic system has gradually been built.