Number of one-year-olds who are not vaccinated against polio in Trinidad and Tobago
Trinidad and Tobago: Number of one-year-olds who are not vaccinated against polio was 658.36 one-year-olds in 2023. ◆ Volatile
Latest (2023)
658.36 one-year-olds
Change on year
down 44.2%
World rank
158th
of 194 countries
All-time high
18,184 one-year-olds
in 1980
All-time low
181.02 one-year-olds
in 2018
Years of data
44
1980–2023
Number of one-year-olds who are not vaccinated against polio in Trinidad and Tobago, 1980–2023
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 are not vaccinated against polio in Trinidad and Tobago stood at 658.36 one-year-olds.
Compared with earlier readings it is down 44.2% on the previous year and down 42.1% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against polio in Trinidad and Tobago peaked at 18,184 one-year-olds in 1980 and was at its lowest, 181.02 one-year-olds, in 2018.
Trinidad and Tobago ranks 158th of 194 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not vaccinated against polio in Trinidad and Tobago, year by year
| Year | one-year-olds | Change |
|---|---|---|
| 1980 | 18,184 one-year-olds | — |
| 1981 | 13,647 one-year-olds | -25.0% |
| 1982 | 12,772 one-year-olds | -6.4% |
| 1983 | 12,322 one-year-olds | -3.5% |
| 1984 | 10,805 one-year-olds | -12.3% |
| 1985 | 8,244 one-year-olds | -23.7% |
| 1986 | 9,151 one-year-olds | +11.0% |
| 1987 | 6,225 one-year-olds | -32.0% |
| 1988 | 5,118 one-year-olds | -17.8% |
| 1989 | 6,621 one-year-olds | +29.3% |
| 1990 | 3,570 one-year-olds | -46.1% |
| 1991 | 4,958 one-year-olds | +38.9% |
| 1992 | 3,229 one-year-olds | -34.9% |
| 1993 | 5,254 one-year-olds | +62.8% |
| 1994 | 3,453 one-year-olds | -34.3% |
| 1995 | 2,222 one-year-olds | -35.6% |
| 1996 | 2,137 one-year-olds | -3.8% |
| 1997 | 1,845 one-year-olds | -13.7% |
| 1998 | 1,785 one-year-olds | -3.2% |
| 1999 | 1,935 one-year-olds | +8.4% |
| 2000 | 1,912 one-year-olds | -1.2% |
| 2001 | 1,714 one-year-olds | -10.4% |
| 2002 | 758.84 one-year-olds | -55.7% |
| 2003 | 1,697 one-year-olds | +123.7% |
| 2004 | 1,125 one-year-olds | -33.7% |
| 2005 | 935.05 one-year-olds | -16.9% |
| 2006 | 2,063 one-year-olds | +120.6% |
| 2007 | 1,892 one-year-olds | -8.3% |
| 2008 | 1,715 one-year-olds | -9.4% |
| 2009 | 1,910 one-year-olds | +11.4% |
| 2010 | 1,720 one-year-olds | -9.9% |
| 2011 | 1,720 one-year-olds | +0.0% |
| 2012 | 1,715 one-year-olds | -0.3% |
| 2013 | 1,138 one-year-olds | -33.6% |
| 2014 | 1,129 one-year-olds | -0.8% |
| 2015 | 2,235 one-year-olds | +98.0% |
| 2016 | 1,657 one-year-olds | -25.8% |
| 2017 | 1,092 one-year-olds | -34.1% |
| 2018 | 181.02 one-year-olds | -83.4% |
| 2019 | 1,252 one-year-olds | +591.4% |
| 2020 | 1,229 one-year-olds | -1.8% |
| 2021 | 1,035 one-year-olds | -15.8% |
| 2022 | 1,180 one-year-olds | +13.9% |
| 2023 | 658.36 one-year-olds | -44.2% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | 10,309 one-year-olds | 5,118 one-year-olds | 18,184 one-year-olds | 10 |
| 1990s | 3,039 one-year-olds | 1,785 one-year-olds | 5,254 one-year-olds | 10 |
| 2000s | 1,572 one-year-olds | 758.84 one-year-olds | 2,063 one-year-olds | 10 |
| 2010s | 1,384 one-year-olds | 181.02 one-year-olds | 2,235 one-year-olds | 10 |
| 2020s | 1,026 one-year-olds | 658.36 one-year-olds | 1,229 one-year-olds | 4 |
Countries ranked near Trinidad and Tobago
More health data for Trinidad and Tobago
- Un projection of annual infant deaths, annual growth rate 0 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate -0.1463 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,638 deaths per 1,000 people (2090)
- Number of infants who die before age 1 24 deaths (2100)
- Population ages 0-14, female, annual growth rate -1.55 % change on previous year (2025)
- Population ages 0-14, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 0-14, female, per capita 0.0859 units per person (2025)
- Population ages 0-14, male, annual growth rate -1.55 % change on previous year (2025)
- Population ages 0-14, male, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 0-14, male, per capita 0.089 units per person (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against polio in Trinidad and Tobago?
- Number of one-year-olds who are not vaccinated against polio in Trinidad and Tobago was 658.36 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 Trinidad and Tobago?
- The highest recorded value was 18,184 one-year-olds in 1980.
- What is the lowest number of one-year-olds who are not vaccinated against polio recorded in Trinidad and Tobago?
- The lowest recorded value was 181.02 one-year-olds in 2018.
- How does Trinidad and Tobago rank for number of one-year-olds who are not vaccinated against polio?
- Trinidad and Tobago ranks 158th out of 194 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against polio rising or falling in Trinidad and Tobago?
- Over the last ten years it is down 42.1%. The long-run trend across the full record is volatile.
- Where does this Trinidad and Tobago 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.