Number of one-year-olds who are not vaccinated against polio in Cameroon
Cameroon: Number of one-year-olds who are not vaccinated against polio was 231,656 one-year-olds in 2023. ▼ Falling
Latest (2023)
231,656 one-year-olds
Change on year
down 30.8%
World rank
25th
of 194 countries
All-time high
334,889 one-year-olds
in 2022
All-time low
118,983 one-year-olds
in 2010
Years of data
43
1981–2023
Number of one-year-olds who are not vaccinated against polio in Cameroon, 1981–2023
Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.
Analysis
Cameroon recorded 231,656 one-year-olds for number of one-year-olds who are not vaccinated against polio in 2023.
The figure is down 30.8% on the previous year and up 25.4% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against polio in Cameroon peaked at 334,889 one-year-olds in 2022 and was at its lowest, 118,983 one-year-olds, in 2010.
That places Cameroon 25th out of 194 countries with data for 2023, putting it in the top quarter.
The long-run direction has been consistently falling across the 43 years of available data.
Number of one-year-olds who are not vaccinated against polio in Cameroon, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 1981 | 319,210 one-year-olds | — |
| 1982 | 295,844 one-year-olds | -7.3% |
| 1983 | 270,516 one-year-olds | -8.6% |
| 1984 | 272,391 one-year-olds | +0.7% |
| 1985 | 243,015 one-year-olds | -10.8% |
| 1986 | 222,920 one-year-olds | -8.3% |
| 1987 | 222,610 one-year-olds | -0.1% |
| 1988 | 201,073 one-year-olds | -9.7% |
| 1989 | 193,636 one-year-olds | -3.7% |
| 1990 | 197,941 one-year-olds | +2.2% |
| 1991 | 237,682 one-year-olds | +20.1% |
| 1992 | 284,130 one-year-olds | +19.5% |
| 1993 | 304,145 one-year-olds | +7.0% |
| 1994 | 272,200 one-year-olds | -10.5% |
| 1995 | 257,865 one-year-olds | -5.3% |
| 1996 | 276,506 one-year-olds | +7.2% |
| 1997 | 260,709 one-year-olds | -5.7% |
| 1998 | 235,138 one-year-olds | -9.8% |
| 1999 | 215,310 one-year-olds | -8.4% |
| 2000 | 226,969 one-year-olds | +5.4% |
| 2001 | 211,309 one-year-olds | -6.9% |
| 2002 | 188,474 one-year-olds | -10.8% |
| 2003 | 159,585 one-year-olds | -15.3% |
| 2004 | 165,118 one-year-olds | +3.5% |
| 2005 | 128,274 one-year-olds | -22.3% |
| 2006 | 138,833 one-year-olds | +8.2% |
| 2007 | 123,304 one-year-olds | -11.2% |
| 2008 | 119,822 one-year-olds | -2.8% |
| 2009 | 143,402 one-year-olds | +19.7% |
| 2010 | 118,983 one-year-olds | -17.0% |
| 2011 | 142,987 one-year-olds | +20.2% |
| 2012 | 160,005 one-year-olds | +11.9% |
| 2013 | 184,777 one-year-olds | +15.5% |
| 2014 | 180,464 one-year-olds | -2.3% |
| 2015 | 191,576 one-year-olds | +6.2% |
| 2016 | 181,359 one-year-olds | -5.3% |
| 2017 | 220,385 one-year-olds | +21.5% |
| 2018 | 268,534 one-year-olds | +21.8% |
| 2019 | 273,514 one-year-olds | +1.9% |
| 2020 | 276,782 one-year-olds | +1.2% |
| 2021 | 253,158 one-year-olds | -8.5% |
| 2022 | 334,889 one-year-olds | +32.3% |
| 2023 | 231,656 one-year-olds | -30.8% |
Cameroon compared with similar countries
- Cameroon's 231,656 one-year-olds is above the median for lower middle income countries, which is 47,525 one-year-olds, 4.9× the median. (46 countries reporting)
- Cameroon's 231,656 one-year-olds is above the median for Sub-Saharan Africa, which is 59,256 one-year-olds, 3.9× the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 249,024 one-year-olds | 193,636 one-year-olds | 319,210 one-year-olds | 9 |
| 1990s | 254,163 one-year-olds | 197,941 one-year-olds | 304,145 one-year-olds | 10 |
| 2000s | 160,509 one-year-olds | 119,822 one-year-olds | 226,969 one-year-olds | 10 |
| 2010s | 192,258 one-year-olds | 118,983 one-year-olds | 273,514 one-year-olds | 10 |
| 2020s | 274,121 one-year-olds | 231,656 one-year-olds | 334,889 one-year-olds | 4 |
Countries ranked near Cameroon
More health data for Cameroon
- Un projection of annual infant deaths, annual growth rate -1.28 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.7821 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 786.1 deaths per 1,000 people (2090)
- Number of infants who die before age 1 12,841 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 17 (2025)
- Population ages 00-04, female, annual growth rate 1.22 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0746 units per person (2025)
- Population ages 00-04, male, annual growth rate 1.21 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against polio in Cameroon?
- Number of one-year-olds who are not vaccinated against polio in Cameroon was 231,656 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 are not vaccinated against polio recorded in Cameroon?
- The highest recorded value was 334,889 one-year-olds in 2022.
- What is the lowest number of one-year-olds who are not vaccinated against polio recorded in Cameroon?
- The lowest recorded value was 118,983 one-year-olds in 2010.
- How does Cameroon rank for number of one-year-olds who are not vaccinated against polio?
- Cameroon ranks 25th out of 194 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against polio rising or falling in Cameroon?
- Over the last ten years it is up 25.4%. The long-run trend across the full record is falling.
- Where does this Cameroon 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 are not vaccinated against polio. 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 third dose of either the oral or inactivated polio vaccine in a given year.