Number of estimated paralytic polio cases by world region in Chad

Chad: Number of estimated paralytic polio cases by world region was 61.05 in 2023. β—† Volatile

Latest (2023)
61.05
Change on year
up 25.0%
World rank
3rd
of 196 countries
All-time high
2,282
in 1997
All-time low
0
in 1994
Years of data
34
1983–2023

Number of estimated paralytic polio cases by world region in Chad, 1983–2023

05001.0k1.5k2.0k2.5k1983200320231983: 1681984: 631985: 3151986: 631994: 01995: 1.3k1996: 6511997: 2.3k1998: 281999: 7702000: 4202001: 02002: 02003: 502004: 482005: 2.22006: 1.12007: 24.42008: 41.12009: 712010: 302011: 146.52012: 18.92013: 3.32014: 02015: 02016: 02017: 02018: 02019: 12.22020: 2022021: 02022: 48.82023: 61

Source: Our World in Data.

Analysis

In 2023, number of estimated paralytic polio cases by world region in Chad stood at 61.05.

The figure is up 25.0% on the previous year and up 1,733.3% over ten years.

Over the whole period, number of estimated paralytic polio cases by world region in Chad peaked at 2,282 in 1997 and was at its lowest, 0, in 1994.

Chad ranks 3rd of 196 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 152.25 63 315 4
1990s 845.83 0 2,282 6
2000s 65.79 0 420 10
2010s 21.09 0 146.52 10
2020s 77.97 0 202 4

Countries ranked near Chad

  1. 1 Cook Islands 0 compare
  2. 1 Congo, Democratic Republic of the 247.53 compare
  3. 1 Niue 0 compare
  4. 1 St. Helena 0 compare
  5. 2 Nigeria 96.57 compare
  6. 4 Guinea 52.17 compare
  7. 5 Madagascar, Republic of 26.64 compare
  8. 6 Mali 16.65 compare

See the full ranking of 199 places β†’

More reference data data for Chad

All data for Chad β†’

Frequently asked questions

What is number of estimated paralytic polio cases by world region in Chad?
Number of estimated paralytic polio cases by world region in Chad was 61.05 in 2023, according to Our World in Data.
What is the highest number of estimated paralytic polio cases by world region recorded in Chad?
The highest recorded value was 2,282 in 1997.
What is the lowest number of estimated paralytic polio cases by world region recorded in Chad?
The lowest recorded value was 0 in 1994.
How does Chad rank for number of estimated paralytic polio cases by world region?
Chad ranks 3rd out of 196 countries with data for 2023.
Is number of estimated paralytic polio cases by world region rising or falling in Chad?
Over the last ten years it is up 1,733.3%. The long-run trend across the full record is volatile.
Where does this Chad 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 Chad. Statizoid, drawing on Our World in Data. Retrieved 18 August 2026, from https://reference.statizoid.com/stat/number-of-estimated-paralytic-polio-cases-by-world-region/chad/

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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