Polio number unvaccinated in Tanzania

Tanzania: Polio number unvaccinated was 441,878 in 2023. β—† Volatile

Latest (2023)
441,878
Change on year
up 13.3%
World rank
11th
of 192 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

0200.0k400.0k600.0k800.0k1980200120231980: 337.1k1981: 433.7k1982: 427.0k1983: 428.3k1984: 455.9k1985: 316.1k1986: 241.3k1987: 181.8k1988: 166.7k1989: 322.2k1990: 212.9k1991: 186.8k1992: 180.0k1993: 224.6k1994: 177.5k1995: 225.4k1996: 221.9k1997: 241.0k1998: 247.4k1999: 314.5k2000: 447.9k2001: 446.4k2002: 117.9k2003: 40.4k2004: 69.4k2005: 129.6k2006: 134.0k2007: 183.2k2008: 170.6k2009: 188.5k2010: 95.8k2011: 195.1k2012: 165.3k2013: 152.2k2014: 52.6k2015: 127.3k2016: 204.9k2017: 210.3k2018: 356.3k2019: 264.9k2020: 812.4k2021: 764.6k2022: 389.9k2023: 441.9k

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 192 countries on this measure, in the top 10%.

The series is highly variable year to year, so single readings are best treated with caution.

Averages by decade

DecadeAverage LowestHighest 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

  1. 8 Yemen 697,470 compare
  2. 9 Viet Nam 566,102 compare
  3. 10 Afghanistan 556,070 compare
  4. 12 Philippines 409,385 compare
  5. 13 Brazil 392,271 compare
  6. 14 Madagascar 346,189 compare

See the full ranking of 194 places β†’

More health data for Tanzania

All data for Tanzania β†’

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 192 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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Polio number unvaccinated in Tanzania. Statizoid, drawing on Our World in Data. Retrieved 19 August 2026, from https://health.statizoid.com/stat/polio-number-unvaccinated/tanzania/

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About this data

Indicator
Polio number unvaccinated
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
194 places, 7,911 data points, 1980–2023
Last refreshed