Which has higher immunization, pol3, Iran, Islamic Republic of or Tonga?

Iran, Islamic Republic of, at 99.0% against 99.0% in Tonga as of 2024.

What is the difference in immunization, pol3 between Iran, Islamic Republic of and Tonga?

0.0%, with Iran, Islamic Republic of ahead.

How many years of comparable data are there for Iran, Islamic Republic of and Tonga?

45 years are reported by both, from 1980 to 2024.

Where does this data come from?

WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/), published as Immunization, Pol3 (% of one-year-old children). Statizoid refreshes it automatically from the source and publishes the full history for both places.

Iran, Islamic Republic of vs Tonga: Immunization, Pol3

Iran, Islamic Republic of

99.0%

in 2024

Tonga

99.0%

in 2024

Iran, Islamic Republic of rank

1st

Tonga rank

1st

Immunization, Pol3 over time

Iran, Islamic Republic of
Tonga

How they compare

Iran, Islamic Republic of currently reports 99.0% against 99.0% in Tonga, a difference of 0.0%.

The two have swapped places 11 times across 45 shared years of data; in 1980 it was Iran, Islamic Republic of ahead.

Iran, Islamic Republic of ranks 1st and Tonga ranks 1st of 193 countries.

Across the 5 decades both report, Iran, Islamic Republic of averaged higher in 3 and Tonga in 2.

Head to head by decade

Decade	Iran, Islamic Republic of	Tonga	Difference	Ahead
1980s	57.6%	66.6%	9.0%	Tonga
1990s	96.2%	94.9%	1.3%	Iran, Islamic Republic of
2000s	98.0%	97.2%	0.8%	Iran, Islamic Republic of
2010s	98.8%	97.9%	0.9%	Iran, Islamic Republic of
2020s	98.8%	99.0%	0.2%	Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher immunization, pol3, Iran, Islamic Republic of or Tonga?: Iran, Islamic Republic of, at 99.0% against 99.0% in Tonga as of 2024.
What is the difference in immunization, pol3 between Iran, Islamic Republic of and Tonga?: 0.0%, with Iran, Islamic Republic of ahead.
How many years of comparable data are there for Iran, Islamic Republic of and Tonga?: 45 years are reported by both, from 1980 to 2024.
How do Iran, Islamic Republic of and Tonga rank globally for immunization, pol3?: Iran, Islamic Republic of ranks 1st and Tonga ranks 1st of 193 countries.
Where does this data come from?: WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/), published as Immunization, Pol3 (% of one-year-old children). Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Iran, Islamic Republic of vs Tonga: Immunization, Pol3. Statizoid, drawing on WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/). Retrieved 08 September 2026, from https://health.statizoid.com/compare/immunization-pol3-percent-of-one-year-old-children/iran-islamic-rep/tonga/

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<a href="https://health.statizoid.com/compare/immunization-pol3-percent-of-one-year-old-children/iran-islamic-rep/tonga/">Iran, Islamic Republic of vs Tonga: Immunization, Pol3</a> — Statizoid

About this data

Indicator: Immunization, Pol3 (% of one-year-old children)
Unit: % of one-year-old children
Source: WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/)
Licence: CC BY 4.0 (World Bank Open Data)
Coverage: 236 places, 9,949 data points, 1980–2024
Last refreshed: 03 September 2026

Child immunization rate, polio, is the percentage of children ages 12-23 months who received polio vaccinations before 12 months or at any time before the survey. A child is considered adequately immunized after three doses.