The population of United Republic of Tanzania is expected to grow by 2,113,000 in 2026 and reach 76,952,000 in 2027. Migration (including immigration and emigration) decreases population by 40,000 people yearly. The population density of Tanzania has changed from 21.1 in 1980 to 79.7 in 2024.
| Current population | 75,030,493 people at present (Monday 9th of February 2026) | |
| Median Age | 22.8 years |
| Population density | 84.4 per km2 |
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2026 | 74,794,000 | 2,113,000 (2.8%) | -40,000 | 22.8 | 84 | 29,377,000 (39.3%) | |
| 2025 | 72,681,000 | 2,067,000 (2.8%) | -40,000 | 22.7 | 4.48 | 82 | 28,055,000 (38.6%) |
| 2024 | 0 | 0 (0.0%) | -40,000 | 22.6 | 80 | 26,775,000 (37.9%) | |
| 2023 | 0 | 0 (0.0%) | -40,000 | 22.5 | 77 | 25,536,000 (37.2%) | |
| 2022 | 0 | 0 (0.0%) | -40,000 | 22.4 | 75 | 24,337,000 (36.5%) | |
| 2021 | 0 | 0 (0.0%) | -40,000 | 22.3 | 73 | 23,178,000 (35.8%) | |
| 2020 | 62,775,000 | 1,861,000 (3.0%) | -40,000 | 22.3 | 4.77 | 71 | 22,058,000 (35.1%) |
| 2019 | 0 | 0 (0.0%) | -40,000 | 22.2 | 4.83 | 69 | 20,976,000 (34.4%) |
| 2018 | 0 | 0 (0.0%) | -40,000 | 22.1 | 4.89 | 67 | 19,932,000 (33.7%) |
| 2017 | 0 | 0 (0.0%) | -40,000 | 22.0 | 4.96 | 65 | 18,925,000 (33.0%) |
| 2016 | 0 | 0 (0.0%) | -40,000 | 21.9 | 5.02 | 63 | 17,958,712 (32.3%) |
| 2015 | 53,879,957 | 1,645,088 (3.1%) | -40,000 | 21.9 | 5.08 | 61 | 17,030,377 (31.6%) |
| 2010 | 46,098,591 | 1,434,360 (3.1%) | -40,000 | 21.8 | 5.43 | 52 | 12,960,158 (28.1%) |
| 2005 | 39,410,545 | 1,160,561 (2.9%) | -53,063 | 21.7 | 5.64 | 44 | 9,791,550 (24.8%) |
| 2000 | 34,178,042 | 886,502 (2.6%) | -59,190 | 21.7 | 5.69 | 39 | 7,624,779 (22.3%) |
| 1995 | 29,960,776 | 890,161 (3.0%) | -41,175 | 21.6 | 5.88 | 34 | 6,154,842 (20.5%) |
| 1990 | 25,459,604 | 799,029 (3.1%) | 118,257 | 21.5 | 6.21 | 29 | 4,807,792 (18.9%) |
| 1985 | 21,836,999 | 663,396 (3.0%) | 13,642 | 21.5 | 6.47 | 25 | 3,661,410 (16.8%) |
| 1980 | 18,683,157 | 573,273 (3.1%) | 7,436 | 21.4 | 6.65 | 21 | 2,719,334 (14.6%) |
| 1975 | 15,980,301 | 503,007 (3.2%) | -4,450 | 21.4 | 6.75 | 18 | 1,781,164 (11.1%) |
| 1970 | 13,605,529 | 418,972 (3.1%) | 23,798 | 21.5 | 6.77 | 15 | 1,068,306 (7.9%) |
| 1965 | 11,683,528 | 344,431 (3.0%) | 7,205 | 21.5 | 6.80 | 13 | 704,517 (6.0%) |
| 1960 | 10,074,507 | 298,891 (2.9%) | 5,399 | 21.5 | 6.81 | 11 | 528,509 (5.2%) |
In 2025 the population of Tanzania was 72,681,000 and the average age increased from 21.5 in 1960 to 22.7. Urban population has increased from 7,624,779 (22.3%) in 2000 to 29,377,000 (39.3%) in the current year. The population density of Tanzania has changed from 21.1 in 1980 to 79.7 in 2024.
| Year | Population | Year change | Migrants | Median age | Fertility rate | Density (Ppl/km2) | Urban population |
|---|---|---|---|---|---|---|---|
| 2020 | 0 | 0 (0.0%) | -40,000 | 22.3 | 4.77 | 71 | 22,058,000 (35.1%) |
| 2025 | 0 | 0 (0.0%) | -40,000 | 22.7 | 4.48 | 82 | 28,055,000 (38.6%) |
| 2030 | 83,702,000 | 2,296,000 (2.7%) | -40,000 | 23.3 | 4.21 | 95 | 35,079,000 (41.9%) |
| 2035 | 95,862,000 | 2,519,000 (2.6%) | -40,000 | 23.9 | 3.96 | 108 | 43,115,000 (45.0%) |
| 2040 | 109,060,000 | 2,717,000 (2.5%) | -40,000 | 24.6 | 3.73 | 123 | 52,027,000 (47.7%) |
| 2045 | 123,174,000 | 2,890,000 (2.4%) | -40,000 | 25.4 | 3.53 | 139 | 62,012,000 (50.3%) |
| 2050 | 138,082,000 | 3,043,000 (2.2%) | -40,000 | 26.2 | 3.35 | 156 | 73,160,000 (53.0%) |
The life expectancy at birth should reach 74.0 (72.1 years for male and 76.0 years for females). Population density will go up to 155.9 people per square kilometer.
The demographics of Tanzania constitutes of 37,696,000 women and 37,098,000 men, which means there are 984 men per 1000 women. As far as age distribution goes, 53.5% of population (39,999,831) is 19 or younger, 43.3% of population (32,385,802) is between age 20 and 64 and 3.2% of population (2,393,408) is over 65.