The population of Guinea-Bissau is expected to grow by 49,000 in 2026 and reach 2,341,000 in 2027. Migration (including immigration and emigration) decreases population by 1,999 people yearly. The population density of Guinea-Bissau has changed from 28.5 in 1980 to 78.0 in 2024.
| Current population | 2,296,479 people at present (Monday 9th of February 2026) | |
| Median Age | 24.1 years |
| Population density | 81.5 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2026 | 2,291,000 | 49,000 (2.1%) | -1,999 | 24.1 | 82 | 1,294,000 (56.5%) | |
| 2025 | 2,242,000 | 49,000 (2.2%) | -1,999 | 24.0 | 4.00 | 80 | 1,254,000 (56.0%) |
| 2024 | 0 | 0 (0.0%) | -2,000 | 23.9 | 78 | 1,215,000 (55.4%) | |
| 2023 | 0 | 0 (0.0%) | -2,000 | 23.7 | 76 | 1,175,000 (54.8%) | |
| 2022 | 0 | 0 (0.0%) | -2,000 | 23.6 | 75 | 1,136,000 (54.2%) | |
| 2021 | 0 | 0 (0.0%) | -2,000 | 23.5 | 73 | 1,097,000 (53.6%) | |
| 2020 | 2,001,000 | 47,000 (2.4%) | -2,000 | 23.4 | 4.34 | 71 | 1,059,000 (52.9%) |
| 2019 | 0 | 0 (0.0%) | -1,999 | 23.3 | 4.41 | 70 | 1,021,000 (52.2%) |
| 2018 | 0 | 0 (0.0%) | -1,999 | 23.1 | 4.49 | 68 | 983,000 (51.6%) |
| 2017 | 0 | 0 (0.0%) | -1,999 | 23.1 | 4.56 | 66 | 946,000 (50.8%) |
| 2016 | 0 | 0 (0.0%) | -1,999 | 22.9 | 4.64 | 65 | 909,556 (50.1%) |
| 2015 | 1,770,526 | 44,782 (2.5%) | -1,999 | 22.9 | 4.71 | 63 | 873,436 (49.3%) |
| 2010 | 1,555,880 | 38,432 (2.5%) | -2,001 | 22.5 | 5.05 | 55 | 703,584 (45.2%) |
| 2005 | 1,380,838 | 30,493 (2.2%) | -5,000 | 22.3 | 5.39 | 49 | 564,307 (40.9%) |
| 2000 | 1,243,229 | 22,435 (1.8%) | -7,980 | 21.9 | 5.82 | 44 | 455,693 (36.7%) |
| 1995 | 1,137,122 | 23,581 (2.1%) | -11,761 | 22.0 | 6.29 | 40 | 371,077 (32.6%) |
| 1990 | 1,012,280 | 23,760 (2.4%) | -6,000 | 22.0 | 6.63 | 36 | 284,764 (28.1%) |
| 1985 | 899,509 | 22,636 (2.5%) | -5,601 | 22.3 | 6.74 | 32 | 201,769 (22.4%) |
| 1980 | 800,854 | 8,392 (1.1%) | -6,000 | 22.8 | 6.49 | 28 | 140,990 (17.6%) |
| 1975 | 778,470 | 9,525 (1.2%) | -15,873 | 24.3 | 6.15 | 28 | 124,166 (16.0%) |
| 1970 | 711,827 | 13,489 (1.9%) | -3,000 | 24.4 | 6.04 | 25 | 107,714 (15.1%) |
| 1965 | 652,562 | 8,601 (1.3%) | -1,446 | 24.5 | 5.97 | 23 | 93,636 (14.3%) |
| 1960 | 616,409 | 7,006 (1.1%) | -4,000 | 24.4 | 5.92 | 22 | 83,832 (13.6%) |
In 2025 the population of Guinea-Bissau was 2,242,000 and the average age decreased from 24.4 in 1960 to 24.0. Urban population has increased from 455,693 (36.7%) in 2000 to 1,294,000 (56.5%) in the current year. The population density of Guinea-Bissau has changed from 28.5 in 1980 to 78.0 in 2024.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | -2,000 | 23.4 | 4.34 | 71 | 1,059,000 (52.9%) |
| 2025 | 0 | 0 (0.0%) | -1,999 | 24.0 | 4.00 | 80 | 1,254,000 (56.0%) |
| 2030 | 2,493,000 | 51,000 (2.1%) | -1,998 | 24.8 | 3.71 | 89 | 1,456,000 (58.4%) |
| 2035 | 2,755,000 | 53,000 (1.9%) | -1,998 | 25.6 | 3.46 | 98 | 1,661,000 (60.3%) |
| 2040 | 3,031,000 | 56,000 (1.9%) | -2,000 | 26.5 | 3.24 | 108 | 1,873,000 (61.8%) |
| 2045 | 3,316,000 | 58,000 (1.8%) | -1,999 | 27.3 | 3.06 | 118 | 2,098,000 (63.3%) |
| 2050 | 3,603,000 | 58,000 (1.6%) | -1,999 | 28.2 | 2.90 | 128 | 2,332,000 (64.7%) |
The life expectancy at birth should reach 67.9 (65.6 years for male and 70.3 years for females). Population density will go up to 128.1 people per square kilometer.
The demographics of Guinea-Bissau constitutes of 1,160,000 women and 1,131,000 men, which means there are 975 men per 1000 women. As far as age distribution goes, 49.6% of population (1,136,794) is 19 or younger, 47.1% of population (1,078,145) is between age 20 and 64 and 3.3% of population (74,458) is over 65.