Sex ratio in China 2018, by age group

The gender or sex ratio in China has been a contentious issue since the introduction of the one-child policy in 1979, intended to limit the population of the country. Although the policy is no longer in place, the population gender difference throughout the country is still evident. In 2018, five to nine-year old children had the largest gender disparity of 118.03 males to every 100 females.

Gender imbalance

While the difference of gender at birth has been decreasing in the country over the past decade, China still boasts the world’s most skewed sex ratio at birth at around 115 males born for every 100 females as of 2018. In fact, there are about 30 million more men in the country than women. This imbalance likely came from the country’s traditional preference for male children to continue the family lineage and from the population control policies enforced.

Where does that leave the population?

The surplus of young, single men across the country poses a risk for China in many different socio-economic areas. Some of the roll-on effects include males overrepresenting specific labor markets, savings rates increasing, consumption reducing and violent crime increasing across the country.

For the Chinese population over 65 years old, the sex ratio tended to decline, with more females outliving their male counterparts. The adult mortality rate in China, that is, the probability of a 15-year-old dying before reaching age 60, was significantly higher for men than for women.

Sex ratio in China in 2018, by age group

Sex ratio by age group (female = 100)
0 to 4 years113.91
5 to 9 years118.03
10 to 14 years118.62
15 to 19 years118.14
20 to 24 years112.89
25 to 29 years105.39
30 to 34 years101.05
35 to 39 years102.84
40 to 44 years103.75
45 to 49 years103.64
50 to 54 years102.15
55 to 59 years101.65
60 to 64 years100.5
65 to 69 years 96.94
70 to 74 years94.42
75 to 79 years89.15
80 to 84 years76.97
85 to 89 years71.16
90 to 94 years48.74
95 years and older40.07
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Source

Release date

October 2019

Region

China

Survey time period

2018

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