Demographic profile
Tanzania is the 20th most populous of the 237 countries and territories tracked on this site, home to about 0.88% of everyone alive. Within Eastern Africa, it ranks 2 of 20.
Each day brings roughly 6,984 births and 1,180 deaths, adding about 2,119,867 people over a year. At the current natural-increase rate of 2.9% annually, the population would double in roughly 24 years if the rate held. Real trajectories bend as fertility, mortality and migration shift, which is why the chart below shows both history and projection.
Among its first-level divisions, the largest by our modelled allocation is Pemba South, holding an estimated 19.7% of the national population. The full breakdown of all 31 states and regions is in the table below. Regional figures outside Sudan are modelled estimates built on real region names, and are flagged as such.
Literacy stands near 81.8% and adult smoking prevalence around 8.7%, with life expectancy at about 52.3 years. Baselines come from UN World Population Prospects, the World Bank, WHO surveys, WorldPop and HDX; the counters project them forward in real time — the method, and every caveat, is documented on our data sources page.
Quick answers
What is the population of Tanzania in 2026? Approximately 73,090,518 people (live projection; the counter above updates every second).
How fast is Tanzania growing? About 2.9% per year — roughly 6,984 births and 1,180 deaths every day.
What share of the world lives in Tanzania? Around 0.88% — ranked 20 worldwide by population.