South Korea vs Sri Lanka: Number of one-year-olds who are not vaccinated against diphtheria

South Korea
0.0521 one-year-olds per square kilometre
in 2023
Sri Lanka
0.0525 one-year-olds per square kilometre
in 2023
South Korea rank
132nd
Sri Lanka rank
131st

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

  • South Korea
  • Sri Lanka
01234198020012023

How they compare

Sri Lanka currently reports 0.0525 one-year-olds per square kilometre against 0.0521 one-year-olds per square kilometre in South Korea, a difference of 0.0004 one-year-olds per square kilometre.

The two have swapped places 10 times across 43 shared years of data; in 1981 it was Sri Lanka ahead.

South Korea ranks 132nd and Sri Lanka ranks 131st of 192 countries.

Across the 5 decades both report, South Korea averaged higher in 4 and Sri Lanka in 1.

Head to head by decade

Decade South Korea Sri Lanka Difference Ahead
1980s 2.36 one-year-olds per square kilometre 1.83 one-year-olds per square kilometre 0.5351 one-year-olds per square kilometre South Korea
1990s 1.07 one-year-olds per square kilometre 0.4583 one-year-olds per square kilometre 0.61 one-year-olds per square kilometre South Korea
2000s 0.2576 one-year-olds per square kilometre 0.1093 one-year-olds per square kilometre 0.1483 one-year-olds per square kilometre South Korea
2010s 0.0921 one-year-olds per square kilometre 0.0566 one-year-olds per square kilometre 0.0355 one-year-olds per square kilometre South Korea
2020s 0.0572 one-year-olds per square kilometre 0.1467 one-year-olds per square kilometre 0.0894 one-year-olds per square kilometre Sri Lanka

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, South Korea or Sri Lanka?
Sri Lanka, at 0.0525 one-year-olds per square kilometre against 0.0521 one-year-olds per square kilometre in South Korea as of 2023.
What is the difference in number of one-year-olds who are not vaccinated against diphtheria between South Korea and Sri Lanka?
0.0004 one-year-olds per square kilometre, with Sri Lanka ahead.
How many years of comparable data are there for South Korea and Sri Lanka?
43 years are reported by both, from 1981 to 2023.
How do South Korea and Sri Lanka rank globally for number of one-year-olds who are not vaccinated against diphtheria?
South Korea ranks 132nd and Sri Lanka ranks 131st 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.

Individual pages

Share, cite or embed this page

Cite this page

South Korea vs Sri Lanka: Number of one-year-olds who are not vaccinated against diphtheria. Statizoid, drawing on Statizoid (derived). Retrieved 17 September 2026, from https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/korea-rep/sri-lanka/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under Derived by Statizoid from the sources named on the page; please keep the attribution.

<a href="https://health.statizoid.com/compare/number-of-one-year-olds-who-are-not-vaccinated-against-diphtheria-pertussis-and-tetanus-3/korea-rep/sri-lanka/">South Korea vs Sri Lanka: 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.