| Country | Year | |||||
|---|---|---|---|---|---|---|
| Benin | 2020 | 5,822,221 | 5,750,755 | 11,572,976 | ||
| Cabo Verde | 2020 | 277,767 | 294,517 | 572,284 | ||
| Gambia, The | 2020 | 1,045,335 | 1,072,886 | 2,118,221 | ||
| Ghana | 2020 | 14,036,282 | 14,465,099 | 28,501,381 | ||
| Guinea | 2020 | 6,495,277 | 6,484,016 | 12,979,293 | ||
| Cote d'Ivoire | 2020 | 12,555,076 | 12,306,879 | 24,861,955 | ||
| Liberia | 2020 | 2,281,989 | 2,302,127 | 4,584,116 | ||
| Mali | 2020 | 9,162,495 | 9,697,577 | 18,860,072 | ||
| Mauritania | 2020 | 1,872,479 | 2,021,408 | 3,893,887 | ||
| Niger | 2020 | 10,183,891 | 10,123,451 | 20,307,342 | ||
| Nigeria | 2020 | 100,870,383 | 97,089,280 | 197,959,663 | ||
| Guinea-Bissau | 2020 | 898,649 | 938,590 | 1,837,239 | ||
| Senegal | 2020 | 7,371,358 | 7,883,773 | 15,255,131 | ||
| Saint Helena | 2020 | 3,914 | 3,875 | 7,789 | ||
| Sierra Leone | 2020 | 3,111,603 | 3,291,669 | 6,403,272 | ||
| Togo | 2020 | 4,135,275 | 4,207,730 | 8,343,005 | ||
| Burkina Faso | 2020 | 10,528,046 | 10,622,210 | 21,150,256 |