Tanzania's adults (ages 15-49) newly infected with HIV was 36,000 in 2024, the latest year in the World Bank's World Development Indicators. That is down 48.57% from 70,000 in 2014 (6.43% a year on average, compounded).
Key figures
| Value | Year | |
|---|---|---|
| Latest | 36,000 | 2024 |
| Five years earlier | 70,000 | 2019 |
| Ten years earlier | 70,000 | 2014 |
| Highest | 120,000 | 1990 |
| Lowest | 36,000 | 2024 |
| Average since 2015 | 61,600 | 2015–2024 |
| First recorded | 120,000 | 1990 |
What the numbers say
In 2024, Tanzania's adults (ages 15-49) newly infected with HIV fell 21.7% on 2023 (from 46,000 to 36,000).
Across the 30 yearly changes before that (1994 to 2023), the average change was −2.8% and a typical year strayed about 4.7% from that (the standard deviation). This year's change was 4.0 standard deviations below that average, so it was unusually large compared with the rest of the record.
On record, the biggest yearly rise was 7.1% in 2016 and the biggest yearly fall was 21.7% in 2024. The numbers show how large and when, not why; for the cause, look at what happened in that country in those years.
From 2015 to 2024 the straight-line trend is downward, about 4,097 a year. A straight line explains 85% of the movement over 10 observed years.
Worked out from the yearly values above. How the checks work: standard deviation, z-scores and straight-line trends.
How it compares
In 2024, Tanzania had the 3rd highest value of the 132 economies reporting that year. Higher is not always better: for some indicators the lowest value is the one to aim for. See the full ranking.
| Value | Year | |
|---|---|---|
| Tanzania | 36,000 | 2024 |
| World | 1.1 million | 2024 |
Closest to Tanzania in the 2024 ranking
- South Africa — 1st of 132: 150,000
- Mozambique — 2nd of 132: 70,000
- Philippines — 4th of 132: 30,000
- Uganda — 5th of 132: 30,000
- Nigeria — 6th of 132: 29,000
What this measures
Number of adults (ages 15-49) newly infected with HIV.
All 35 values
| Year | Adults (ages 15-49) newly infected with HIV |
|---|---|
| 2024 | 36,000 |
| 2023 | 46,000 |
| 2022 | 52,000 |
| 2021 | 58,000 |
| 2020 | 61,000 |
| 2019 | 70,000 |
| 2018 | 74,000 |
| 2017 | 74,000 |
| 2016 | 75,000 |
| 2015 | 70,000 |
| 2014 |
Adults (ages 15-49) newly infected with HIV in nearby economies
- Angola — 15,000 (2024)
- Benin — 860 (2024)
- Botswana — 3,800 (2024)
- Burkina Faso — 2,000 (2024)
- Burundi — 930 (2024)
- Cabo Verde — 200 (2024)
- Cameroon — 9,700 (2024)
- Central African Republic — 2,800 (2024)
- Chad — 2,800 (2024)
- Comoros — 100 (2024)
More health data for Tanzania
- Population ages 00-04, female (% of female population) — 15.59% (2025)
- Population ages 00-04, male (% of male population) — 16.24% (2025)
- Population ages 0-14, female — 14.78 million (2025)
- Population ages 0-14, female (% of female population) — 41.56% (2025)
- Population ages 0-14, male — 15.09 million (2025)
- Population ages 0-14, male (% of male population) — 43.14% (2025)
- Population ages 0-14, total — 29.87 million (2025)
- Population ages 0-14 (% of total population) — 42.34% (2025)
- Population ages 05-09, female (% of female population) — 13.93% (2025)
Reading data like this
Questions people ask
- What is Tanzania's adults (ages 15-49) newly infected with HIV?
- 36,000 in 2024, according to the World Bank (World Development Indicators).
- How has it changed since 1990?
- It is down 70% from 120,000 in 1990 (3.48% a year on average, compounded). The highest value was 120,000 in 1990 and the lowest 36,000 in 2024.
- How does Tanzania rank?
- 3rd highest of 132 economies with data for 2024.
- Is the latest change in adults (ages 15-49) newly infected with HIV unusual for Tanzania?
- In 2024, Tanzania's adults (ages 15-49) newly infected with HIV fell 21.7% on 2023 (from 46,000 to 36,000). Across the 30 yearly changes before that (1994 to 2023), the average change was −2.8% and a typical year strayed about 4.7% from that (the standard deviation). This year's change was 4.0 standard deviations below that average, so it was unusually large compared with the rest of the record.
Source
World Bank, World Development Indicators, indicator SH.HIV.INCD, licensed CC BY 4.0. Original source: UNAIDS estimates, Joint United Nations Programme on HIV/AIDS (UNAIDS), uri: https://aidsinfo.unaids.org/, publisher: UNAIDS, date accessed: 2025-08-27, date published: 2025-07 Figures are fetched from the World Bank API and refreshed monthly; see the series on data.worldbank.org. The full definition and method are in the World Bank's metadata glossary. Comparisons use the same World Bank release.
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