全球城市人口占82亿人口的45%,其中33个特大城市和中小城市快速增长,特别是在非洲和亚洲。 Global urban population reaches 45% of 8.2 billion, with 33 megacities and rapid growth in small and medium cities, especially in Africa and Asia.

截至2025年,全世界82亿人口中的45%生活在城市,而1950年的20%,根据一份使用标准化城市定义的订正的联合国报告,这一数字高于1950年的20%。 As of 2025, 45% of the world’s 8.2 billion people live in cities, up from 20% in 1950, according to a revised UN report using a standardized urban definition. 特大城市——居住人数在1 000万或以上的城市地区——已增加到33个,其中19个在亚洲;雅加达人口最多,近4 200万。 The number of megacities—urban areas with 10 million or more residents—has grown to 33, with 19 in Asia; Jakarta is the most populous, with nearly 42 million. 虽然特大城市正在扩大,但大多数人口生活在中小型城市,这些城市的增长速度更快,尤其是在非洲和亚洲。 While megacities are expanding, most people live in small and medium-sized cities, which are growing faster, especially in Africa and Asia. 全球城市数量自1975年以来翻了一番多,到2050年可能超过15 000个。 The global number of cities has more than doubled since 1975 and could exceed 15,000 by 2050. 报告介绍了一种新的地理空间方法,用于连贯一致的城乡分类、帮助气候和发展规划。 The report introduces a new geospatial method for consistent urban-rural classification, aiding climate and development planning.