World Population Review
Western Africa includes the following countries:
Source: By Mondo Magic (Own work) [Public domain], via Wikimedia Commons
| Year | Population | Density (km²) | Growth Rate |
| 2018 | 381,980,688 | 62.99 | 2.69% |
| 2015 | 352,613,862 | 58.15 | 2.74% |
| 2010 | 307,781,164 | 50.75 | 2.77% |
| 2005 | 268,607,649 | 44.30 | 2.70% |
| 2000 | 235,508,297 | 38.84 | 2.65% |
| 1995 | 206,554,911 | 34.06 | 2.70% |
| 1990 | 180,533,356 | 29.77 | 2.72% |
| 1985 | 157,843,113 | 26.03 | 2.77% |
| 1980 | 137,485,899 | 22.67 | 2.79% |
| 1975 | 120,136,269 | 19.81 | 2.62% |
| 1970 | 106,101,929 | 17.50 | 2.37% |
| 1965 | 94,726,623 | 15.62 | 2.22% |
| 1960 | 85,094,151 | 14.03 | 2.07% |
| 1955 | 77,141,556 | 12.72 | 1.85% |
| 1950 | 70,875,879 | 11.69 | 0.00% |
| Year | Population | Density (km²) | Growth Rate |
| 2020 | 402,578,892 | 66.39 | 2.65% |
| 2025 | 457,751,516 | 75.49 | 2.57% |
| 2030 | 518,446,478 | 85.49 | 2.49% |
| 2035 | 584,660,206 | 96.41 | 2.39% |
| 2040 | 655,870,068 | 108.16 | 2.28% |
| 2045 | 731,217,432 | 120.58 | 2.14% |
| 2050 | 809,718,821 | 133.53 | 2.00% |
| 2055 | 890,569,489 | 146.86 | 1.87% |
| 2060 | 972,882,889 | 160.43 | 1.73% |
| 2065 | 1,056,014,668 | 174.14 | 1.60% |
| 2070 | 1,139,088,478 | 187.84 | 1.47% |
| 2075 | 1,220,931,096 | 201.34 | 1.35% |
| 2080 | 1,300,331,807 | 214.43 | 1.22% |
| 2085 | 1,376,451,912 | 226.99 | 1.10% |
| 2090 | 1,448,504,976 | 238.87 | 0.98% |
| 2095 | 1,515,750,815 | 249.96 | 0.87% |
