Share of one-year-olds who are vaccinated against polio in Tanzania, United Republic of
Tanzania, United Republic of: Share of one-year-olds who are vaccinated against polio was 80.0% in 2024. ▲ Rising
Share of one-year-olds who are vaccinated against polio in Tanzania, United Republic of, 1980–2024
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
Tanzania, United Republic of recorded 80.0% for share of one-year-olds who are vaccinated against polio in 2024.
Compared with earlier readings it is down 17.5% over ten years.
Over the whole period, share of one-year-olds who are vaccinated against polio in Tanzania, United Republic of peaked at 97.0% in 2003 and was at its lowest, 46.0%, in 1981.
Tanzania, United Republic of ranks 141st of 194 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 45 years of available data.
Share of one-year-olds who are vaccinated against polio in Tanzania, United Republic of, year by year
| Year | % | Change |
|---|---|---|
| 1980 | 57.0% | — |
| 1981 | 46.0% | -19.3% |
| 1982 | 48.0% | +4.3% |
| 1983 | 49.0% | +2.1% |
| 1984 | 47.0% | -4.1% |
| 1985 | 64.0% | +36.2% |
| 1986 | 73.0% | +14.1% |
| 1987 | 80.0% | +9.6% |
| 1988 | 82.0% | +2.5% |
| 1989 | 66.0% | -19.5% |
| 1990 | 78.0% | +18.2% |
| 1991 | 81.0% | +3.8% |
| 1992 | 82.0% | +1.2% |
| 1993 | 78.0% | -4.9% |
| 1994 | 83.0% | +6.4% |
| 1995 | 79.0% | -4.8% |
| 1996 | 80.0% | +1.3% |
| 1997 | 79.0% | -1.2% |
| 1998 | 79.0% | +0.0% |
| 1999 | 74.0% | -6.3% |
| 2000 | 64.0% | -13.5% |
| 2001 | 65.0% | +1.6% |
| 2002 | 91.0% | +40.0% |
| 2003 | 97.0% | +6.6% |
| 2004 | 95.0% | -2.1% |
| 2005 | 91.0% | -4.2% |
| 2006 | 91.0% | +0.0% |
| 2007 | 88.0% | -3.3% |
| 2008 | 89.0% | +1.1% |
| 2009 | 88.0% | -1.1% |
| 2010 | 94.0% | +6.8% |
| 2011 | 88.0% | -6.4% |
| 2012 | 90.0% | +2.3% |
| 2013 | 91.0% | +1.1% |
| 2014 | 97.0% | +6.6% |
| 2015 | 93.0% | -4.1% |
| 2016 | 89.0% | -4.3% |
| 2017 | 89.0% | +0.0% |
| 2018 | 82.0% | -7.9% |
| 2019 | 87.0% | +6.1% |
| 2020 | 61.0% | -29.9% |
| 2021 | 64.0% | +4.9% |
| 2022 | 82.0% | +28.1% |
| 2023 | 80.0% | -2.4% |
| 2024 | 80.0% | +0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 61.2% | 46.0% | 82.0% | 10 |
| 1990s | 79.3% | 74.0% | 83.0% | 10 |
| 2000s | 85.9% | 64.0% | 97.0% | 10 |
| 2010s | 90.0% | 82.0% | 97.0% | 10 |
| 2020s | 73.4% | 61.0% | 82.0% | 5 |
Countries ranked near Tanzania, United Republic of
More health data for Tanzania, United Republic of
- Un projection of annual infant deaths, annual growth rate -1.03 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.7342 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 658.6 deaths per 1,000 people (2090)
- Number of infants who die before age 1 32,514 deaths (2100)
- Total tetanus - number of reported cases, gaps filled 13 (2025)
- Total tetanus - number of reported cases, per capita 0 units per person (2025)
- Diphtheria - number of reported cases, gaps filled 0 (2013)
- Diphtheria - number of reported cases, per capita 0 units per person (2013)
- Measles - number of reported cases, gaps filled 99 (2025)
- Measles - number of reported cases, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is share of one-year-olds who are vaccinated against polio in Tanzania, United Republic of?
- Share of one-year-olds who are vaccinated against polio in Tanzania, United Republic of was 80.0% in 2024, according to WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest share of one-year-olds who are vaccinated against polio recorded in Tanzania, United Republic of?
- The highest recorded value was 97.0% in 2003.
- What is the lowest share of one-year-olds who are vaccinated against polio recorded in Tanzania, United Republic of?
- The lowest recorded value was 46.0% in 1981.
- How does Tanzania, United Republic of rank for share of one-year-olds who are vaccinated against polio?
- Tanzania, United Republic of ranks 141st out of 194 countries with data for 2024.
- Is share of one-year-olds who are vaccinated against polio rising or falling in Tanzania, United Republic of?
- Over the last ten years it is down 17.5%. The long-run trend across the full record is rising.
- Where does this Tanzania, United Republic of data come from?
- The figures come from WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Share of one-year-olds who are vaccinated against polio. Statizoid updates them automatically from the source API.
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About this data
Share of one-year-olds who have had the third dose of either the oral or inactivated polio vaccine in a given year.