China vs Tonga: Number of one-year-olds who are not vaccinated against diphtheria

China
0.0421 one-year-olds per square kilometre
in 2023
Tonga
0.0333 one-year-olds per square kilometre
in 2023
China rank
144th
Tonga rank
147th

Number of one-year-olds who are not vaccinated against diphtheria over time

  • China
  • Tonga
0123198020012023

How they compare

China currently reports 0.0421 one-year-olds per square kilometre against 0.0333 one-year-olds per square kilometre in Tonga, a difference of 0.0088 one-year-olds per square kilometre.

That makes China's figure about 1.3 times Tonga's.

The two have swapped places 11 times across 41 shared years of data; in 1983 it was Tonga ahead.

China ranks 144th and Tonga ranks 147th of 192 countries.

Across the 5 decades both report, China averaged higher in 2 and Tonga in 3.

Head to head by decade

Decade China Tonga Difference Ahead
1980s 0.5096 one-year-olds per square kilometre 0.811 one-year-olds per square kilometre 0.3014 one-year-olds per square kilometre Tonga
1990s 0.2681 one-year-olds per square kilometre 0.2111 one-year-olds per square kilometre 0.057 one-year-olds per square kilometre China
2000s 0.1754 one-year-olds per square kilometre 0.1165 one-year-olds per square kilometre 0.0589 one-year-olds per square kilometre China
2010s 0.019 one-year-olds per square kilometre 0.0801 one-year-olds per square kilometre 0.0611 one-year-olds per square kilometre Tonga
2020s 0.0209 one-year-olds per square kilometre 0.0331 one-year-olds per square kilometre 0.0121 one-year-olds per square kilometre Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher number of one-year-olds who are not vaccinated against diphtheria, China or Tonga?
China, at 0.0421 one-year-olds per square kilometre against 0.0333 one-year-olds per square kilometre in Tonga as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between China and Tonga?
0.0088 one-year-olds per square kilometre, with China ahead.
How many years of comparable data are there for China and Tonga?
41 years are reported by both, from 1983 to 2023.
How do China and Tonga rank globally for number of one-year-olds who are not vaccinated against diphtheria?
China ranks 144th and Tonga ranks 147th of 192 countries.
Where does this data come from?
Statizoid (derived), published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per square kilometre. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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China vs Tonga: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 18 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/china/tonga/

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<a href="https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/china/tonga/">China vs Tonga: Number of one-year-olds who are not vaccinated against diphtheria</a> — Statizoid

About this data

Indicator
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, per square kilometre
Unit
one-year-olds per square kilometre
Source
Statizoid (derived)
Licence
Derived by Statizoid from the sources named on the page
Coverage
192 places, 7,710 data points, 1980–2023
Last refreshed

Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus divided by Land area (sq. km), matched on country and year. Neither publisher issues this ratio as a series; it is computed here from both.