How many years of comparable data are there for Chad and Congo, Democratic Republic of the?

41 years are reported by both, from 1984 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.

Chad vs Congo, Democratic Republic of the: Immunization, Pol3

Chad

67.0%

in 2024

Congo, Democratic Republic of the

65.0%

in 2024

Chad rank

172nd

Congo, Democratic Republic of the rank

175th

Immunization, Pol3 over time

Chad
Congo, Democratic Republic of the

How they compare

Chad currently reports 67.0% against 65.0% in Congo, Democratic Republic of the, a difference of 2.0%.

The two have swapped places 5 times across 41 shared years of data; in 1984 it was Congo, Democratic Republic of the ahead.

Chad ranks 172nd and Congo, Democratic Republic of the ranks 175th of 193 countries.

Congo, Democratic Republic of the has averaged higher in every one of the 5 decades both report.

Head to head by decade

Decade	Chad	Congo, Democratic Republic of the	Difference	Ahead
1980s	10.3%	36.7%	26.3%	Congo, Democratic Republic of the
1990s	20.3%	23.6%	3.3%	Congo, Democratic Republic of the
2000s	34.0%	51.5%	17.5%	Congo, Democratic Republic of the
2010s	45.5%	69.7%	24.2%	Congo, Democratic Republic of the
2020s	60.0%	65.8%	5.8%	Congo, Democratic Republic of the

Averages of every year both report within each decade.

Frequently asked questions

Which has higher immunization, pol3, Chad or Congo, Democratic Republic of the?: Chad, at 67.0% against 65.0% in Congo, Democratic Republic of the as of 2024.
What is the difference in immunization, pol3 between Chad and Congo, Democratic Republic of the?: 2.0%, with Chad ahead.
How many years of comparable data are there for Chad and Congo, Democratic Republic of the?: 41 years are reported by both, from 1984 to 2024.
How do Chad and Congo, Democratic Republic of the rank globally for immunization, pol3?: Chad ranks 172nd and Congo, Democratic Republic of the ranks 175th 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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Chad vs Congo, Democratic Republic of the: Immunization, Pol3. Statizoid, drawing on WHO and UNICEF (http://www.who.int/immunization/monitoring_surveillance/en/). Retrieved 05 September 2026, from https://health.statizoid.com/compare/immunization-pol3-percent-of-one-year-old-children/chad/congo-dem-rep/

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<a href="https://health.statizoid.com/compare/immunization-pol3-percent-of-one-year-old-children/chad/congo-dem-rep/">Chad vs Congo, Democratic Republic of the: 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.