The population of Guinea-Bissau is expected to grow by 48,293 in 2026 and reach 2,346,189 in 2027. Migration (including immigration and emigration) decreases population by 1,893 people yearly. On average there are 66,179 births and 16,009 deaths in Guinea-Bissau per year. Rate of natural increase is approximately 2.18 percent per year. The population density of Guinea-Bissau has changed from 29.5 in 1980 to 78.3 in 2024.
| Current population | 2,338,766 people at present (Thursday 5th of November 2026) | |
| Median Age | 24.5 years |
| Life expectancy | 64.6 years | |
| Population density | 81.7 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2026 | 2,297,808 | 48,293 (2.1%) | -1,893 | 24.5 | 3.63 | 82 | 1,084,713 (47.2%) |
| 2025 | 2,249,515 | 48,163 (2.1%) | -1,373 | 24.3 | 3.69 | 80 | 1,049,422 (46.7%) |
| 2024 | 0 | 0 (0.0%) | -1,712 | 24.1 | 3.76 | 78 | 1,015,114 (46.1%) |
| 2023 | 0 | 0 (0.0%) | -1,400 | 23.9 | 3.84 | 77 | 981,759 (45.6%) |
| 2022 | 0 | 0 (0.0%) | -1,400 | 23.7 | 3.91 | 75 | 950,914 (45.2%) |
| 2021 | 0 | 0 (0.0%) | -1,395 | 23.6 | 4.00 | 73 | 920,990 (44.7%) |
| 2020 | 2,013,255 | 45,559 (2.3%) | -1,394 | 23.4 | 4.08 | 72 | 891,949 (44.3%) |
| 2019 | 0 | 0 (0.0%) | -1,395 | 23.3 | 4.15 | 70 | 863,318 (43.9%) |
| 2018 | 0 | 0 (0.0%) | -1,396 | 23.1 | 4.24 | 68 | 835,084 (43.4%) |
| 2017 | 0 | 0 (0.0%) | -1,398 | 22.9 | 4.35 | 67 | 807,433 (43.0%) |
| 2016 | 0 | 0 (0.0%) | -1,392 | 22.8 | 4.52 | 65 | 780,132 (42.6%) |
| 2015 | 1,786,457 | 45,335 (2.5%) | -1,393 | 22.7 | 4.66 | 64 | 753,113 (42.2%) |
| 2010 | 1,566,347 | 39,970 (2.6%) | -2,257 | 22.3 | 5.11 | 56 | 626,689 (40.0%) |
| 2005 | 1,381,585 | 32,022 (2.3%) | -4,662 | 22.2 | 5.46 | 49 | 530,254 (38.4%) |
| 2000 | 1,234,741 | 24,535 (2.0%) | -6,971 | 22.1 | 5.79 | 44 | 454,893 (36.8%) |
| 1995 | 1,119,949 | 27,918 (2.5%) | -4,376 | 22.4 | 6.22 | 40 | 391,211 (34.9%) |
| 1990 | 973,669 | 15,880 (1.6%) | -8,151 | 23.0 | 6.50 | 35 | 310,123 (31.9%) |
| 1985 | 897,697 | 14,178 (1.6%) | -8,812 | 23.0 | 6.74 | 32 | 217,031 (24.2%) |
| 1980 | 829,303 | 9,436 (1.1%) | -8,086 | 23.0 | 6.49 | 29 | 143,142 (17.3%) |
| 1975 | 650,966 | 37,628 (5.8%) | 28,645 | 24.6 | 6.15 | 23 | 102,073 (15.7%) |
| 1970 | 584,403 | 2,793 (0.5%) | 1,123 | 25.3 | 6.04 | 21 | 87,449 (15.0%) |
| 1965 | 575,005 | -13,538 (-2.4%) | -19,928 | 25.4 | 5.97 | 20 | 82,718 (14.4%) |
| 1960 | 577,633 | 4,899 (0.8%) | -8,007 | 25.8 | 5.92 | 21 | 77,870 (13.5%) |
In 2025 the population of Guinea-Bissau was 2,249,515 and the average age decreased from 25.8 in 1960 to 24.3. Urban population has increased from 454,893 (36.8%) in 2000 to 1,084,713 (47.2%) in the current year. The population density of Guinea-Bissau has changed from 29.5 in 1980 to 78.3 in 2024.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | -1,394 | 23.4 | 4.08 | 72 | 891,949 (44.3%) |
| 2025 | 0 | 0 (0.0%) | -1,373 | 24.3 | 3.69 | 80 | 1,049,422 (46.7%) |
| 2030 | 2,488,934 | 47,352 (1.9%) | -3,273 | 25.2 | 3.37 | 89 | 1,192,219 (47.9%) |
| 2035 | 2,730,133 | 47,045 (1.7%) | -4,016 | 26.2 | 3.09 | 97 | 1,325,629 (48.6%) |
| 2040 | 2,969,702 | 47,715 (1.6%) | -2,563 | 27.3 | 2.87 | 106 | 1,455,044 (49.0%) |
| 2045 | 3,204,249 | 47,538 (1.5%) | 135 | 28.3 | 2.71 | 114 | 1,578,032 (49.2%) |
| 2050 | 3,438,608 | 46,040 (1.3%) | -746 | 29.4 | 2.56 | 122 | 1,696,462 (49.3%) |
The life expectancy at birth should reach 68.0 (65.3 years for male and 70.7 years for females). Population density will go up to 122.3 people per square kilometer.
The population growth rate is 2.15% (48,163 residents, including 15,429 deaths). The demographics of Guinea-Bissau constitutes of 1,161,174 women and 1,136,634 men, which means there are 979 men per 1000 women. As far as age distribution goes, 48.8% of population (1,120,871) is 19 or younger, 47.9% of population (1,101,110) is between age 20 and 64 and 3.3% of population (75,138) is over 65.