| Country | Year | |||||
|---|---|---|---|---|---|---|
| Benin | 2040 | 9,219,333 | 9,042,100 | 18,261,433 | ||
| Cabo Verde | 2040 | 337,399 | 357,693 | 695,092 | ||
| Gambia, The | 2040 | 1,402,421 | 1,444,741 | 2,847,162 | ||
| Ghana | 2040 | 21,017,943 | 21,787,865 | 42,805,808 | ||
| Guinea | 2040 | 10,532,983 | 10,498,310 | 21,031,293 | ||
| Cote d'Ivoire | 2040 | 16,575,577 | 16,405,035 | 32,980,612 | ||
| Liberia | 2040 | 3,419,271 | 3,462,940 | 6,882,211 | ||
| Mali | 2040 | 15,104,804 | 16,051,069 | 31,155,873 | ||
| Mauritania | 2040 | 2,686,797 | 2,899,070 | 5,585,867 | ||
| Niger | 2040 | 17,636,972 | 17,655,623 | 35,292,595 | ||
| Nigeria | 2040 | 158,698,139 | 153,604,179 | 312,302,318 | ||
| Guinea-Bissau | 2040 | 1,235,397 | 1,274,420 | 2,509,817 | ||
| Senegal | 2040 | 11,078,742 | 11,774,389 | 22,853,131 | ||
| Saint Helena | 2040 | 3,718 | 3,901 | 7,619 | ||
| Sierra Leone | 2040 | 5,145,892 | 5,366,812 | 10,512,704 | ||
| Togo | 2040 | 6,581,124 | 6,696,083 | 13,277,207 | ||
| Burkina Faso | 2040 | 18,194,141 | 18,370,715 | 36,564,856 |