Sex ratio in china by age group. In 2021, china's official census report showed a sex ratio of 112 male to 100 female births, compared to a global average of 105 or 106 male to 100 female births This is down from a high of 118 male to 100 female births from 2002 to 2008 [2] the sex imbalance in some rural areas and even cities is higher, at 130 boys to 100 girls (e.g The sex ratio of china's population varies significantly across age groups Population pyramid, age structure, sex ratio (males to females), life expectancy, dependency ratio of china
Background china's sex ratio at birth (srb) has declined in the past decade but still exceeds the normal level This study seeks to depict the srb trend in the past two decades.methods we depicted the srb trend, including srb by birth order, children composition, residence and hukou type, education, race and province using latest data available from multiple data sources and standardisation. China's population declined for the third consecutive year in 2024, dropping by 1.39 million to 1.408 billion, reflecting demographic challenges Rising living costs, delayed marriages, and low immigration rates contribute to fewer births An aging population strains the social security system, causing concerns over future economic stability and potential policy changes regarding retirement age. The ratio in young adults will remain above 115 well into the 2040s
Eventually, the numbers of young men and women could equalise. Tiemenguan in xinjiang, china and lienchiang county in taiwan have 73.8 women for every 100 men The lowest in east asia The rest of the 100 areas in east asia with the lowest ratio of women to men, are all chinese The areas with the largest surplus of men, are mostly concentrated in xinjiang and guangdong. One in six young chinese men won't find a marriage partner
The economist has analysed data from the un's world population prospects, a biennial report, and from china's 2020 census
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