Share of one-year-olds who are vaccinated against polio in Chad
Chad: Share of one-year-olds who are vaccinated against polio was 67.0% in 2024. ▲ Rising
Share of one-year-olds who are vaccinated against polio in Chad, 1984–2024
Source: WHO & UNICEF (2026); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in %.
Analysis
In 2024, share of one-year-olds who are vaccinated against polio in Chad stood at 67.0%. That is the highest value across all 41 years on record.
The figure is up 52.3% over ten years.
Over the whole period, share of one-year-olds who are vaccinated against polio in Chad peaked at 67.0% in 2023 and was at its lowest, 3.0%, in 1985.
That places Chad 173rd out of 194 countries with data for 2024, putting it in the bottom quarter.
The long-run direction has been consistently rising across the 41 years of available data.
Share of one-year-olds who are vaccinated against polio in Chad, year by year
| Year | % | Change |
|---|---|---|
| 1984 | 4.0% | — |
| 1985 | 3.0% | -25.0% |
| 1986 | 8.0% | +166.7% |
| 1987 | 13.0% | +62.5% |
| 1988 | 14.0% | +7.7% |
| 1989 | 20.0% | +42.9% |
| 1990 | 20.0% | +0.0% |
| 1991 | 18.0% | -10.0% |
| 1992 | 10.0% | -44.4% |
| 1993 | 12.0% | +20.0% |
| 1994 | 18.0% | +50.0% |
| 1995 | 18.0% | +0.0% |
| 1996 | 20.0% | +11.1% |
| 1997 | 24.0% | +20.0% |
| 1998 | 29.0% | +20.8% |
| 1999 | 34.0% | +17.2% |
| 2000 | 30.0% | -11.8% |
| 2001 | 26.0% | -13.3% |
| 2002 | 31.0% | +19.2% |
| 2003 | 36.0% | +16.1% |
| 2004 | 31.0% | -13.9% |
| 2005 | 37.0% | +19.4% |
| 2006 | 49.0% | +32.4% |
| 2007 | 38.0% | -22.4% |
| 2008 | 30.0% | -21.1% |
| 2009 | 32.0% | +6.7% |
| 2010 | 43.0% | +34.4% |
| 2011 | 40.0% | -7.0% |
| 2012 | 51.0% | +27.5% |
| 2013 | 46.0% | -9.8% |
| 2014 | 44.0% | -4.3% |
| 2015 | 52.0% | +18.2% |
| 2016 | 44.0% | -15.4% |
| 2017 | 44.0% | +0.0% |
| 2018 | 45.0% | +2.3% |
| 2019 | 46.0% | +2.2% |
| 2020 | 51.0% | +10.9% |
| 2021 | 57.0% | +11.8% |
| 2022 | 58.0% | +1.8% |
| 2023 | 67.0% | +15.5% |
| 2024 | 67.0% | +0.0% |
Chad compared with similar countries
- Chad's 67.0% is below the median for low income countries, which is 72.0%, 93% of the median. (25 countries reporting)
- Chad's 67.0% is below the median for Sub-Saharan Africa, which is 77.0%, 87% of the median. (48 countries reporting)
Biggest year-on-year movements
Years where Share of one-year-olds who are vaccinated against polio in Chad changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1986 | +166.7% | 3.0% | 8.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 10.3% | 3.0% | 20.0% | 6 |
| 1990s | 20.3% | 10.0% | 34.0% | 10 |
| 2000s | 34.0% | 26.0% | 49.0% | 10 |
| 2010s | 45.5% | 40.0% | 52.0% | 10 |
| 2020s | 60.0% | 51.0% | 67.0% | 5 |
Countries ranked near Chad
- 171 Nigeria 69.0% compare
- 172 Guinea-Bissau 68.0% compare
- 173 Azerbaijan 67.0% compare
- 173 Equatorial Guinea 67.0% compare
- 176 Democratic Republic of Congo 65.0% compare
- 176 Vanuatu 65.0% compare
More health data for Chad
- Un projection of annual infant deaths, annual growth rate -0.9964 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.6578 % change on previous year (2090)
- Number of infants who die before age 1 41,435 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 245 (2025)
- Population ages 00-04, female, annual growth rate 3.76 % 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 0.0898 units per person (2025)
- Population ages 00-04, male, annual growth rate 3.77 % 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 0.0924 units per person (2025)
Frequently asked questions
- What is share of one-year-olds who are vaccinated against polio in Chad?
- Share of one-year-olds who are vaccinated against polio in Chad was 67.0% in 2024, according to WHO & UNICEF (2026); 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 Chad?
- The highest recorded value was 67.0% in 2023.
- What is the lowest share of one-year-olds who are vaccinated against polio recorded in Chad?
- The lowest recorded value was 3.0% in 1985.
- How does Chad rank for share of one-year-olds who are vaccinated against polio?
- Chad ranks 173rd out of 194 countries with data for 2024.
- Is share of one-year-olds who are vaccinated against polio rising or falling in Chad?
- Over the last ten years it is up 52.3%. The long-run trend across the full record is rising.
- Where does this Chad data come from?
- The figures come from WHO & UNICEF (2026); 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.