Core Viewpoint - The article discusses the trend of decreasing household sizes in China, highlighting the average household size of 2.51 people per household in 2024, as reported by the National Bureau of Statistics in the "China Statistical Yearbook 2025" [3][4]. Summary by Sections Household Size by Province - In 2024, 16 provinces have an average household size equal to or exceeding the national average, with Hainan having the largest at 3.21 people per household [4]. - The provinces with larger household sizes are often correlated with higher birth rates, indicating a relationship between family size and demographic trends [4]. Birth and Death Rates - In 2024, 10 provinces reported a birth rate of 8‰ or higher, primarily located in the western and southern regions of China, including Tibet, Ningxia, and Hainan [4]. - The article notes that the overall trend of smaller household sizes is influenced by a decrease in the average number of children per family and a decline in multi-generational households [5]. Population Mobility - The seventh national census indicates that as of 2020, 49.276 million people were living separately from their registered households, with 37.582 million being part of the mobile population, reflecting significant increases since 2010 [5]. - Regions with lower birth rates and out-migration of young populations tend to have smaller average household sizes [6]. Living Conditions - Improved living conditions have contributed to smaller family sizes, as many adult children choose to live independently from their parents, leading to a decrease in multi-generational living arrangements [6].

Group 1 - The average household size in China for 2024 is reported to be 2.51 persons per household, with significant variations across provinces [1][2] - Provinces with larger average household sizes include Hainan (3.21), Tibet, Guangxi, Xinjiang, Guizhou, Gansu, Qinghai, Yunnan, Ningxia, and Jiangxi, with 16 provinces exceeding the national average [1][2] - The size of households is closely related to birth rates, with regions having larger household sizes generally exhibiting higher birth rates [1][2] Group 2 - In 2024, 10 provinces have birth rates reaching or exceeding 8‰, primarily located in the western and southern regions of China [2][3] - Factors influencing household size include the decrease in average number of children per family and the decline of multi-generational households [2][3] - Improvements in living conditions have led to a trend where adult children live independently from their parents, contributing to smaller household sizes [3]