Commonwealth of Nations
The Commonwealth comprises 53 countries, across all continents. The members have a combined population of 2.4 billion people, almost a third of the world population, of which 1.26 billion live in India, 220 million live in Pakistan and 94% live in Asia and Africa combined. After India, the next-largest Commonwealth countries by population are Pakistan (220 million ), Nigeria (170 million), Bangladesh (156 million), and the United Kingdom (65 million). Tuvalu is the smallest member, with about 10,000 people.
Member states of the Commonwealth of Nations
Currently sixteen of the member states are Commonwealth realms, with the Head of the Commonwealth as their head of state. Five others are monarchies with their own individual monarchs (Brunei, Eswatini, Lesotho, Malaysia, Tonga) and the rest are republics. Republic of Ireland (from 1949 according to the Commonwealth; 1936 according to Irish government), Zimbabwe (2003), and Maldives (2016) are former members of the Commonwealth. South Africa, Pakistan and The Gambia left and later rejoined the Commonwealth.
All dates below are provided by the Commonwealth of Nations Secretariat members list, and population figures are as of 1 January 2018.
A. Unless otherwise noted, independence was gained from the United Kingdom on the date (shown in column 2) of joining the Commonwealth.
B. Not a member of the Commonwealth Foundation.
C. Though Pakistan celebrates 14 August 1947 as its independence day, independence was officially granted at midnight, 15 August 1947. Therefore, its date of joining the Commonwealth would be 15 August 1947.
D. Commonwealth realms, recognising Queen Elizabeth II as their head of state since the day of their independence, distinctly from her being the sovereign of the United Kingdom.
E. Geopolitically part of Europe, but geographically part of Asia.