Population and Demographics of Tanzania
A very young population · 42.54% under age 15 in 2024
Annual population movement in Tanzania is +2.92% in 2024. Compared with 2000, the 2024 population is 100.1% larger, showing the scale of the longer shift. The medium projection reaches 129.62 million in 2050, placing the mid-century total 89.1% above 2024.
Population Over Time in Tanzania
Tanzania's population stood at 34.260M in 2000 and 68.560M in 2024, equivalent to a +100.1% change over that period. For 2050, the medium projection is 129.621M. That is a difference of about 61.06 million people from the 2024 estimate. The chart connects dated reference points only and should not be read as an annual interpolated series.
Age Structure and Sex Balance
Looking beyond the headline population number, Tanzania's 2024 age structure is very young. Children under 15 make up 42.54% of the population, compared with 3.05% aged 65 or older, and 54.41% are 15 to 64. The age balance is weighted toward younger residents.
Population by broad age group
The 2024 World Bank sex-share indicator gives Tanzania a female share of 50.4% and a male share of 49.6%. Females exceed males by 0.8 percentage points.
Female and male population share
Females made up 50.4% of the population in the World Bank's 2024 series, compared with 49.6% males.
What Is Shaping Population Change
The 2024 population series for Tanzania records +2.92% annual change and a fertility rate of 4.5, with age composition adding a 39.49-point gap between children and older adults.
The difference between the 2000 and 2024 population points is +100.1% in Tanzania, with the projection period then moving +89.1% from 2024 to 2050; the aggregate numbers are not used to manufacture a causal explanation.
2024 estimate for Tanzania. The world comparison value is 2.25 children per woman.
Tanzania vs. World
The comparison puts Tanzania's +2.92% annual change beside a world rate of +0.87%, a fertility rate of 4.5 beside 2.25, and a median age of 17 years beside 30.6 globally.
| Indicator | Tanzania | World | Year |
|---|---|---|---|
| Annual population change | +2.92% | +0.87% | 2024 |
| Total fertility rate | 4.5 | 2.25 | 2024 |
| Median age | 17 | 30.6 | 2024 |
The table is built for like-for-like comparison, using 2024 values from a single harmonized source context linked to UN World Population Prospects 2024.
Key Takeaways
The 2024 total is 68,560,157 people. Annual change in the same harmonized table is +2.92%.
The 2024 age structure is 42.54% under 15, 54.41% aged 15 to 64 and 3.05% aged 65 or older.
The 2024 female and male shares are 50.4% and 49.6% respectively.
The 2050 medium projection is 129.621M, 89.1% above the 2024 estimate.
Frequently Asked Questions
What is the population of Tanzania?
The 2024 harmonized population estimate for Tanzania is 68,560,157 people.
Is the population of Tanzania growing or declining?
In the 2024 estimate, Tanzania's population is growing, with annual change of +2.92%.
What percentage of the population of Tanzania is aged 65 or older?
People aged 65 or older account for 3.05% of Tanzania's 2024 population in the UN WPP-based broad age data.
What is the projected population of Tanzania in 2050?
The UN World Population Prospects 2024 medium projection puts Tanzania's 2050 population at 129,621,102.
What is the fertility rate in Tanzania?
The 2024 harmonized fertility estimate for Tanzania is 4.5 children per woman.
Sources & methodology
This profile uses United Nations World Population Prospects 2024 as the primary framework for globally comparable population, age, fertility and projection data. The World Bank is the primary source for the female population share. Some country values were accessed through secondary retrieval interfaces that republish or organize UN data; those interfaces are identified below as secondary and are not treated as the original statistical publishers.
View sources used for this page
Primary global framework for the population estimates and projections.
Harmonized 2024 country table based on UN World Population Prospects 2024.
Harmonized broad age shares based on UN World Population Prospects 2024.
Harmonized reference for the 2000 population point.
Harmonized 2050 country projection based on UN World Population Prospects 2024.
Used for the 2024 female share; the male share is calculated as the remainder to 100%.