Polio number unvaccinated in Tanzania
Tanzania: Polio number unvaccinated was 441,878 in 2023. ◆ Volatile
Latest (2023)
441,878
Change on year
up 13.3%
World rank
11th
of 194 countries
All-time high
812,404
in 2020
All-time low
40,384
in 2003
Years of data
44
1980–2023
Polio number unvaccinated in Tanzania, 1980–2023
Source: Our World in Data.
Analysis
In 2023, polio number unvaccinated in Tanzania stood at 441,878.
The figure is up 13.3% on the previous year and up 190.3% over ten years.
Over the whole period, polio number unvaccinated in Tanzania peaked at 812,404 in 2020 and was at its lowest, 40,384, in 2003.
Tanzania ranks 11th of 194 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Polio number unvaccinated in Tanzania, year by year
| Year | Value | Change |
|---|---|---|
| 1980 | 337,106 | — |
| 1981 | 433,714 | +28.7% |
| 1982 | 426,983 | -1.6% |
| 1983 | 428,304 | +0.3% |
| 1984 | 455,867 | +6.4% |
| 1985 | 316,120 | -30.7% |
| 1986 | 241,277 | -23.7% |
| 1987 | 181,798 | -24.7% |
| 1988 | 166,660 | -8.3% |
| 1989 | 322,204 | +93.3% |
| 1990 | 212,888 | -33.9% |
| 1991 | 186,757 | -12.3% |
| 1992 | 180,006 | -3.6% |
| 1993 | 224,552 | +24.7% |
| 1994 | 177,458 | -21.0% |
| 1995 | 225,353 | +27.0% |
| 1996 | 221,948 | -1.5% |
| 1997 | 241,046 | +8.6% |
| 1998 | 247,413 | +2.6% |
| 1999 | 314,495 | +27.1% |
| 2000 | 447,901 | +42.4% |
| 2001 | 446,436 | -0.3% |
| 2002 | 117,933 | -73.6% |
| 2003 | 40,384 | -65.8% |
| 2004 | 69,429 | +71.9% |
| 2005 | 129,587 | +86.6% |
| 2006 | 133,990 | +3.4% |
| 2007 | 183,214 | +36.7% |
| 2008 | 170,595 | -6.9% |
| 2009 | 188,511 | +10.5% |
| 2010 | 95,767 | -49.2% |
| 2011 | 195,096 | +103.7% |
| 2012 | 165,323 | -15.3% |
| 2013 | 152,237 | -7.9% |
| 2014 | 52,608 | -65.4% |
| 2015 | 127,291 | +142.0% |
| 2016 | 204,928 | +61.0% |
| 2017 | 210,333 | +2.6% |
| 2018 | 356,275 | +69.4% |
| 2019 | 264,909 | -25.6% |
| 2020 | 812,404 | +206.7% |
| 2021 | 764,591 | -5.9% |
| 2022 | 389,855 | -49.0% |
| 2023 | 441,878 | +13.3% |
Tanzania compared with similar countries
- Tanzania's 441,878 is above the median for lower middle income countries, which is 47,525, 9.3× the median. (46 countries reporting)
- Tanzania's 441,878 is above the median for Sub-Saharan Africa, which is 59,256, 7.5× the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 331,003 | 166,660 | 455,867 | 10 |
| 1990s | 223,192 | 177,458 | 314,495 | 10 |
| 2000s | 192,798 | 40,384 | 447,901 | 10 |
| 2010s | 182,477 | 52,608 | 356,275 | 10 |
| 2020s | 602,182 | 389,855 | 812,404 | 4 |
Countries ranked near Tanzania
- 8 Yemen 697,470 compare
- 9 Vietnam 566,102 compare
- 10 Afghanistan 556,070 compare
- 12 Philippines 409,385 compare
- 13 Brazil 392,271 compare
- 14 Madagascar 346,189 compare
More health data for Tanzania
- 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)
- Un projection of annual infant deaths 32,514 (2100)
- Neonatal tetanus - number of reported cases, gaps filled 13 (2025)
- Population ages 00-04, female, annual growth rate 1.86 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0.0001 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0786 units per person (2025)
- Population ages 00-04, male, annual growth rate 1.89 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0.0001 units per US$ of GDP (2025)
- Population ages 00-04, male, per capita 0.0805 units per person (2025)
Frequently asked questions
- What is polio number unvaccinated in Tanzania?
- Polio number unvaccinated in Tanzania was 441,878 in 2023, according to Our World in Data.
- What is the highest polio number unvaccinated recorded in Tanzania?
- The highest recorded value was 812,404 in 2020.
- What is the lowest polio number unvaccinated recorded in Tanzania?
- The lowest recorded value was 40,384 in 2003.
- How does Tanzania rank for polio number unvaccinated?
- Tanzania ranks 11th out of 194 countries with data for 2023.
- Is polio number unvaccinated rising or falling in Tanzania?
- Over the last ten years it is up 190.3%. The long-run trend across the full record is volatile.
- Where does this Tanzania data come from?
- The figures come from Our World in Data, published as part of Polio number unvaccinated. Statizoid updates them automatically from the source API.
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