World Population Day, which seeks to focus attention on the urgency and importance of population issues, was established by the then-Governing Council of the United Nations Development Programme in 1989, an outgrowth of the interest generated by the Day of Five Billion, which was observed on 11 July 1987.
World Population
7,774,310,757
TOP 10 MOST POPULOUS COUNTRIES (July 1, 2021)
1. China
1,397,897,720
6. Nigeria
219,463,862
2. India
1,339,330,514
7. Brazil
213,445,417
3. United States
332,475,723
8. Bangladesh
164,098,818
4. Indonesia
275,122,131
9. Russia
142,320,790
5. Pakistan
238,181,034
10. Mexico
130,207,371
Information from https://www.census.gov/popclock/print.php?component=counter