Rank Country Population % of world Date Source (official or UN)
1 China 1,404,810,000 18.0% 11 Oct 2020 National population clock
2 India 1,368,266,736 17.5% 11 Oct 2020 National population clock
3 United States 330,454,154 4.23% 11 Oct 2020 National population clock
4 Indonesia 269,603,400 3.45% 1 Jul 2020 National annual projection
5 Pakistan 220,892,331 2.83% 1 Jul 2020 UN Projection
6 Brazil 212,184,009 2.71% 11 Oct 2020 National population clock
7 Nigeria 206,139,587 2.64% 1 Jul 2020 UN Projection
8 Bangladesh 169,452,112 2.17% 11 Oct 2020 National population clock
9 Russia 146,748,590 1.88% 1 Jan 2020 National annual estimate
10 Mexico 127,792,286 1.63% 1 Jul 2020 National annual projection