Number of estimated paralytic polio cases by world region in Tanzania, United Republic of

Tanzania, United Republic of: Number of estimated paralytic polio cases by world region was 2.22 in 2023. ◆ Volatile

Latest (2023)
2.22
World rank
20th
of 196 countries
All-time high
4,046
in 1987
All-time low
0
in 1999
Years of data
43
1980–2023

Number of estimated paralytic polio cases by world region in Tanzania, United Republic of, 1980–2023

01.0k2.0k3.0k4.0k1980200120231980: 6371981: 4831982: 1821983: 7071984: 7561985: 2.4k1986: 1.6k1987: 4.0k1988: 281989: 211990: 211991: 281992: 631993: 71994: 631996: 631997: 701998: 4621999: 02000: 02001: 02002: 02003: 02004: 02005: 02006: 02007: 02008: 02009: 02010: 02011: 02012: 02013: 02014: 02015: 02016: 02017: 02018: 02019: 02020: 02021: 02022: 02023: 2.2

Source: Our World in Data.

Analysis

Tanzania, United Republic of recorded 2.22 for number of estimated paralytic polio cases by world region in 2023.

Over the whole period, number of estimated paralytic polio cases by world region in Tanzania, United Republic of peaked at 4,046 in 1987 and was at its lowest, 0, in 1999.

That places Tanzania, United Republic of 20th out of 196 countries with data for 2023, putting it in the top 10%.

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

Number of estimated paralytic polio cases by world region in Tanzania, United Republic of, year by year

Annual values for Number of estimated paralytic polio cases by world region in Tanzania, United Republic of, 1980 to 2023.
Year Value Change
1980 637
1981 483 -24.2%
1982 182 -62.3%
1983 707 +288.5%
1984 756 +6.9%
1985 2,380 +214.8%
1986 1,610 -32.4%
1987 4,046 +151.3%
1988 28 -99.3%
1989 21 -25.0%
1990 21 +0.0%
1991 28 +33.3%
1992 63 +125.0%
1993 7 -88.9%
1994 63 +800.0%
1996 63 +0.0%
1997 70 +11.1%
1998 462 +560.0%
1999 0 -100.0%
2000 0
2001 0
2002 0
2003 0
2004 0
2005 0
2006 0
2007 0
2008 0
2009 0
2010 0
2011 0
2012 0
2013 0
2014 0
2015 0
2016 0
2017 0
2018 0
2019 0
2020 0
2021 0
2022 0
2023 2.22

Averages by decade

DecadeAverage LowestHighest Years
1980s 1,085 21 4,046 10
1990s 86.33 0 462 9
2000s 0 0 0 10
2010s 0 0 0 10
2020s 0.555 0 2.22 4

Countries ranked near Tanzania, United Republic of

  1. 17 Niger 4 compare
  2. 18 Benin 3.33 compare
  3. 18 Burkina Faso 3.33 compare
  4. 21 Israel 2 compare
  5. 21 Mauritania 2 compare
  6. 23 Burundi 1.11 compare
  7. 23 Zambia 1.11 compare
  8. 23 Zimbabwe 1.11 compare

See the full ranking of 199 places →

More reference data data for Tanzania, United Republic of

All data for Tanzania, United Republic of →

Frequently asked questions

What is number of estimated paralytic polio cases by world region in Tanzania, United Republic of?
Number of estimated paralytic polio cases by world region in Tanzania, United Republic of was 2.22 in 2023, according to Our World in Data.
What is the highest number of estimated paralytic polio cases by world region recorded in Tanzania, United Republic of?
The highest recorded value was 4,046 in 1987.
What is the lowest number of estimated paralytic polio cases by world region recorded in Tanzania, United Republic of?
The lowest recorded value was 0 in 1999.
How does Tanzania, United Republic of rank for number of estimated paralytic polio cases by world region?
Tanzania, United Republic of ranks 20th out of 196 countries with data for 2023.
Where does this Tanzania, United Republic of data come from?
The figures come from Our World in Data, published as part of Number of estimated paralytic polio cases by world region. Statizoid updates them automatically from the source API.

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Number of estimated paralytic polio cases by world region in Tanzania, United Republic of. Statizoid, drawing on Our World in Data. Retrieved 25 August 2026, from https://reference.statizoid.com/stat/number-of-estimated-paralytic-polio-cases-by-world-region/tanzania/

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About this data

Indicator
Number of estimated paralytic polio cases by world region
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
199 places, 7,608 data points, 1980–2023
Last refreshed