Portugal vs Singapore: Number of one-year-olds who have not received the inactivated polio vaccine

Portugal
824.42 one-year-olds
in 2023
Singapore
906.12 one-year-olds
in 2023
Portugal rank
148th
Singapore rank
146th

Number of one-year-olds who have not received the inactivated polio vaccine over time

  • Portugal
  • Singapore
4006008001.0k1.2k1.4k201520192023

How they compare

Singapore currently reports 906.12 one-year-olds against 824.42 one-year-olds in Portugal, a difference of 81.7 one-year-olds.

That makes Singapore's figure about 1.1 times Portugal's.

The two have swapped places 2 times across 9 shared years of data; in 2015 it was Singapore ahead.

Portugal ranks 148th and Singapore ranks 146th of 194 countries.

Across the 2 decades both report, Portugal averaged higher in 1 and Singapore in 1.

Head to head by decade

Decade Portugal Singapore Difference Ahead
2010s 851.49 one-year-olds 1,047 one-year-olds 195.99 one-year-olds Singapore
2020s 845.14 one-year-olds 568.51 one-year-olds 276.64 one-year-olds Portugal

Averages of every year both report within each decade.

Frequently asked questions

Which has higher number of one-year-olds who have not received the inactivated polio vaccine, Portugal or Singapore?
Singapore, at 906.12 one-year-olds against 824.42 one-year-olds in Portugal as of 2023.
What is the difference in number of one-year-olds who have not received the inactivated polio vaccine between Portugal and Singapore?
81.7 one-year-olds, with Singapore ahead.
How many years of comparable data are there for Portugal and Singapore?
9 years are reported by both, from 2015 to 2023.
How do Portugal and Singapore rank globally for number of one-year-olds who have not received the inactivated polio vaccine?
Portugal ranks 148th and Singapore ranks 146th of 194 countries.
Where does this data come from?
WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Number of one-year-olds who have not received the inactivated polio vaccine. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Portugal vs Singapore: Number of one-year-olds who have not received the inactivated polio vaccine. Statizoid, drawing on WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 31 August 2026, from https://health.statizoid.com/compare/ipv1-number-unvaccinated/portugal/singapore/

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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.