Number of one-year-olds who have not received the inactivated polio vaccine in Chad
Chad: Number of one-year-olds who have not received the inactivated polio vaccine was 242,358 one-year-olds in 2023. ▼ Falling
Number of one-year-olds who have not received the inactivated polio vaccine in Chad, 2015–2023
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
In 2023, number of one-year-olds who have not received the inactivated polio vaccine in Chad stood at 242,358 one-year-olds.
The figure is up 0.6% on the previous year and down 43.9% over ten years.
Over the whole period, number of one-year-olds who have not received the inactivated polio vaccine in Chad peaked at 431,975 one-year-olds in 2015 and was at its lowest, 240,827 one-year-olds, in 2022.
Chad ranks 18th of 194 countries on this measure, in the top 10%.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2010s | 362,126 one-year-olds | 320,157 one-year-olds | 431,975 one-year-olds | 5 |
| 2020s | 261,976 one-year-olds | 240,827 one-year-olds | 309,086 one-year-olds | 4 |
Countries ranked near Chad
More health data for Chad
- Estimated changes in temperature-related death rates compared to projected death rates 1,071 deaths per 1,000 people (2090)
- Number of infants who die before age 1 41,435 deaths (2100)
- Deaths in armed conflicts based on where they occurred 33 deaths (2026)
- Deaths in armed conflicts by region 33 deaths (2026)
- Age population, age 25, male, interpolated 173,746 (2025)
- Age population, age 25, female, interpolated 172,562 (2025)
- Age population, age 24, male, interpolated 178,917 (2025)
- Age population, age 24, female, interpolated 177,370 (2025)
- Age population, age 23, male, interpolated 183,288 (2025)
- Age population, age 23, female, interpolated 181,223 (2025)
Frequently asked questions
- What is number of one-year-olds who have not received the inactivated polio vaccine in Chad?
- Number of one-year-olds who have not received the inactivated polio vaccine in Chad was 242,358 one-year-olds in 2023, according to WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest number of one-year-olds who have not received the inactivated polio vaccine recorded in Chad?
- The highest recorded value was 431,975 one-year-olds in 2015.
- What is the lowest number of one-year-olds who have not received the inactivated polio vaccine recorded in Chad?
- The lowest recorded value was 240,827 one-year-olds in 2022.
- How does Chad rank for number of one-year-olds who have not received the inactivated polio vaccine?
- Chad ranks 18th out of 194 countries with data for 2023.
- Is number of one-year-olds who have not received the inactivated polio vaccine rising or falling in Chad?
- Over the last ten years it is down 43.9%. The long-run trend across the full record is falling.
- Where does this Chad data come from?
- The figures come from WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Number of one-year-olds who have not received the inactivated polio vaccine. Statizoid updates them automatically from the source API.
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About this data
Number of one-year-olds who have not had the first dose of the inactivated polio vaccine in a given year.