Share of one-year-olds vaccinated against diphtheria, tetanus in Tanzania
Tanzania: Share of one-year-olds vaccinated against diphtheria, tetanus was 83.0% in 2025. ▲ Rising
Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Tanzania, 1980–2025
Source: WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
The most recent figure for share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Tanzania is 83.0%, measured in 2025.
That represents a change of down 13.5% over ten years.
Over the whole period, share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Tanzania peaked at 97.0% in 2014 and was at its lowest, 50.0%, in 1982.
Tanzania ranks 140th of 195 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 46 years of available data.
Share of one-year-olds vaccinated against diphtheria, tetanus in Tanzania, year by year
| Year | % | Change |
|---|---|---|
| 1980 | 59.0% | — |
| 1981 | 55.0% | -6.8% |
| 1982 | 50.0% | -9.1% |
| 1983 | 52.0% | +4.0% |
| 1984 | 58.0% | +11.5% |
| 1985 | 67.0% | +15.5% |
| 1986 | 74.0% | +10.4% |
| 1987 | 79.0% | +6.8% |
| 1988 | 85.0% | +7.6% |
| 1989 | 77.0% | -9.4% |
| 1990 | 78.0% | +1.3% |
| 1991 | 81.0% | +3.8% |
| 1992 | 83.0% | +2.5% |
| 1993 | 83.0% | +0.0% |
| 1994 | 84.0% | +1.2% |
| 1995 | 81.0% | -3.6% |
| 1996 | 82.0% | +1.2% |
| 1997 | 79.0% | -3.7% |
| 1998 | 79.0% | +0.0% |
| 1999 | 76.0% | -3.8% |
| 2000 | 79.0% | +3.9% |
| 2001 | 87.0% | +10.1% |
| 2002 | 89.0% | +2.3% |
| 2003 | 95.0% | +6.7% |
| 2004 | 95.0% | +0.0% |
| 2005 | 90.0% | -5.3% |
| 2006 | 90.0% | +0.0% |
| 2007 | 83.0% | -7.8% |
| 2008 | 86.0% | +3.6% |
| 2009 | 85.0% | -1.2% |
| 2010 | 91.0% | +7.1% |
| 2011 | 90.0% | -1.1% |
| 2012 | 92.0% | +2.2% |
| 2013 | 91.0% | -1.1% |
| 2014 | 97.0% | +6.6% |
| 2015 | 96.0% | -1.0% |
| 2016 | 92.0% | -4.2% |
| 2017 | 90.0% | -2.2% |
| 2018 | 89.0% | -1.1% |
| 2019 | 91.0% | +2.2% |
| 2020 | 91.0% | +0.0% |
| 2021 | 86.0% | -5.5% |
| 2022 | 87.0% | +1.2% |
| 2023 | 83.0% | -4.6% |
| 2024 | 83.0% | +0.0% |
| 2025 | 83.0% | +0.0% |
Tanzania compared with similar countries
- Tanzania's 83.0% is below the median for lower middle income countries, which is 86.0%, 97% of the median. (47 countries reporting)
- Tanzania's 83.0% is below the median for Sub-Saharan Africa, which is 84.0%, 99% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 65.6% | 50.0% | 85.0% | 10 |
| 1990s | 80.6% | 76.0% | 84.0% | 10 |
| 2000s | 87.9% | 79.0% | 95.0% | 10 |
| 2010s | 91.9% | 89.0% | 97.0% | 10 |
| 2020s | 85.5% | 83.0% | 91.0% | 6 |
Countries ranked near Tanzania
More reference data data for Tanzania
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.6405 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 11.44 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 14.14 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.7582 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 14.14 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 2.15 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 1.26 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 59.37 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 72.45 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 4.13 (2050)
Frequently asked questions
- What is share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Tanzania?
- Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis in Tanzania was 83.0% in 2025, according to WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest share of one-year-olds vaccinated against diphtheria, tetanus and pertussis recorded in Tanzania?
- The highest recorded value was 97.0% in 2014.
- What is the lowest share of one-year-olds vaccinated against diphtheria, tetanus and pertussis recorded in Tanzania?
- The lowest recorded value was 50.0% in 1982.
- How does Tanzania rank for share of one-year-olds vaccinated against diphtheria, tetanus and pertussis?
- Tanzania ranks 140th out of 195 countries with data for 2025.
- Is share of one-year-olds vaccinated against diphtheria, tetanus and pertussis rising or falling in Tanzania?
- Over the last ten years it is down 13.5%. The long-run trend across the full record is rising.
- Where does this Tanzania data come from?
- The figures come from WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Share of one-year-olds vaccinated against diphtheria, tetanus and pertussis. Statizoid updates them automatically from the source API.
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About this data
Share of one-year-olds who have had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.