Number of one-year-olds who have not received the inactivated polio vaccine in Grenada

Grenada: Number of one-year-olds who have not received the inactivated polio vaccine was 110.64 one-year-olds in 2023. ◆ Volatile

Latest (2023)
110.64 one-year-olds
Change on year
down 62.5%
World rank
172nd
of 194 countries
All-time high
771.88 one-year-olds
in 2015
All-time low
41.01 one-year-olds
in 2019
Years of data
9
2015–2023

Number of one-year-olds who have not received the inactivated polio vaccine in Grenada, 2015–2023

02004006008002015201920232015: 771.9 one-year-olds2016: 159.9 one-year-olds2017: 137 one-year-olds2018: 56 one-year-olds2019: 41 one-year-olds2020: 297.8 one-year-olds2021: 368.9 one-year-olds2022: 295.1 one-year-olds2023: 110.6 one-year-olds

Source: WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Measured in one-year-olds.

Analysis

The most recent figure for number of one-year-olds who have not received the inactivated polio vaccine in Grenada is 110.64 one-year-olds, measured in 2023.

The figure is down 62.5% on the previous year and down 85.7% over ten years.

Over the whole period, number of one-year-olds who have not received the inactivated polio vaccine in Grenada peaked at 771.88 one-year-olds in 2015 and was at its lowest, 41.01 one-year-olds, in 2019.

That places Grenada 172nd out of 194 countries with data for 2023, putting it in the bottom quarter.

Number of one-year-olds who have not received the inactivated polio vaccine in Grenada, year by year

Annual values for Number of one-year-olds who have not received the inactivated polio vaccine in Grenada, 2015 to 2023.
Year one-year-olds Change
2015 771.88 one-year-olds
2016 159.9 one-year-olds -79.3%
2017 136.98 one-year-olds -14.3%
2018 56.04 one-year-olds -59.1%
2019 41.01 one-year-olds -26.8%
2020 297.78 one-year-olds +626.1%
2021 368.94 one-year-olds +23.9%
2022 295.05 one-year-olds -20.0%
2023 110.64 one-year-olds -62.5%

Grenada compared with similar countries

  • Grenada's 110.64 one-year-olds is below the median for upper middle income countries, which is 3,855 one-year-olds, 3% of the median. (58 countries reporting)
  • Grenada's 110.64 one-year-olds is below the median for Latin America & Caribbean, which is 1,828 one-year-olds, 6% of the median. (32 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
2010s 233.16 one-year-olds 41.01 one-year-olds 771.88 one-year-olds 5
2020s 268.1 one-year-olds 110.64 one-year-olds 368.94 one-year-olds 4

Countries ranked near Grenada

  1. 169 Trinidad and Tobago 164.59 one-year-olds compare
  2. 170 Fiji 163.81 one-year-olds compare
  3. 171 Cyprus 149.69 one-year-olds compare
  4. 173 Saint Lucia 80.84 one-year-olds compare
  5. 174 Saint Vincent and the Grenadines 74.28 one-year-olds compare
  6. 175 Micronesia (country) 73.26 one-year-olds compare

See the full ranking of 194 places →

More health data for Grenada

All data for Grenada →

Frequently asked questions

What is number of one-year-olds who have not received the inactivated polio vaccine in Grenada?
Number of one-year-olds who have not received the inactivated polio vaccine in Grenada was 110.64 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 Grenada?
The highest recorded value was 771.88 one-year-olds in 2015.
What is the lowest number of one-year-olds who have not received the inactivated polio vaccine recorded in Grenada?
The lowest recorded value was 41.01 one-year-olds in 2019.
How does Grenada rank for number of one-year-olds who have not received the inactivated polio vaccine?
Grenada ranks 172nd 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 Grenada?
Over the last ten years it is down 85.7%. The long-run trend across the full record is volatile.
Where does this Grenada 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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Number of one-year-olds who have not received the inactivated polio vaccine in Grenada. Statizoid, drawing on WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 24 September 2026, from https://health.statizoid.com/stat/ipv1-number-unvaccinated/grenada/

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About this data

Indicator
Number of one-year-olds who have not received the inactivated polio vaccine
Unit
one-year-olds
Source
WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
194 places, 1,629 data points, 2015–2023
Last refreshed

Number of one-year-olds who have not had the first dose of the inactivated polio vaccine in a given year.