World Population Day is an annual event, observed on July 11 every year, which seeks to raise awareness of global population issues.

July 11 is observed as World Population Day across the world to raise awareness about the reproductive health needs and susceptibilities of women.

The current population of China is 1,444,994,064 as of July 10, 2021, based on Worldometer elaboration of the latest United Nations data which makes it the most populated country in the world.

The theme of World Population Day 2021 is 'the impact of the Covid-19 pandemic on fertility'. It will be observed to shed more light on the impact of the Covid-19 pandemic on sexual and reproductive health and reproductive behavior globally.