Colombia vs Zambia: Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus
Colombia
70,990 one-year-olds
in 2023
Zambia
64,198 one-year-olds
in 2023
Colombia rank
47th
Zambia rank
48th
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus over time
- Colombia
- Zambia
How they compare
Colombia currently reports 70,990 one-year-olds against 64,198 one-year-olds in Zambia, a difference of 6,792 one-year-olds.
That makes Colombia's figure about 1.1 times Zambia's.
The two have swapped places 8 times across 41 shared years of data; in 1983 it was Colombia ahead.
Colombia ranks 47th and Zambia ranks 48th of 194 countries.
Across the 5 decades both report, Colombia averaged higher in 4 and Zambia in 1.
Head to head by decade
| Decade | Colombia | Zambia | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 317,253 one-year-olds | 82,437 one-year-olds | 234,815 one-year-olds | Colombia |
| 1990s | 152,140 one-year-olds | 51,929 one-year-olds | 100,212 one-year-olds | Colombia |
| 2000s | 96,315 one-year-olds | 69,454 one-year-olds | 26,862 one-year-olds | Colombia |
| 2010s | 67,802 one-year-olds | 76,199 one-year-olds | 8,397 one-year-olds | Zambia |
| 2020s | 85,194 one-year-olds | 67,215 one-year-olds | 17,979 one-year-olds | Colombia |
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, pertussis and tetanus, Colombia or Zambia?
- Colombia, at 70,990 one-year-olds against 64,198 one-year-olds in Zambia as of 2023.
- What is the difference in number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus between Colombia and Zambia?
- 6,792 one-year-olds, with Colombia ahead.
- How many years of comparable data are there for Colombia and Zambia?
- 41 years are reported by both, from 1983 to 2023.
- How do Colombia and Zambia rank globally for number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus?
- Colombia ranks 47th and Zambia ranks 48th 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 are not vaccinated against diphtheria, pertussis and tetanus. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Number of one-year-olds who have not had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.