| Region (for Council purposes) | Number of Full Member Nations (for Council purposes) | Number of Council Seats 1961–65 | Population (in thousands)1 | Percentage Contribution 1964/1965 |
| AFRICA | 302 | 4 | 161,3293 | 1.905 |
| ASIA AND THE FAR EAST | 14 | 5 | 910,422 | 8.58 |
| EUROPE | 25 | 7 | 422,803 | 42.38 |
| LATIN AMERICA | 22 | 5 | 217,619 | 6.31 |
| NEAR EAST | 12 | 3 | 91,5294 | 1.27 |
| NORTH AMERICA | 2 | 2 | 205,191 | 36.17 |
| SOUTHWEST PACIFIC | 2 | 1 | 12,993 | 2.76 |
1 Taken from the United Nations Demographic yearbook 1962; data varies from 1960 to 1962.
3 No population estimates given for Ethiopia and Liberia.
4 No population estimates given for Saudi Arabia and Yemen.
5 Excluding contribution of South Africa.