Belgium vs Czechia: Population by age groups
Belgium
11.88 million
in 2025
Czechia
10.91 million
in 2025
Belgium rank
24th
Czechia rank
27th
Population by age groups over time
- Belgium
- Czechia
How they compare
Belgium currently reports 11.88 million against 10.91 million in Czechia, a difference of 974,000.
That makes Belgium's figure about 1.1 times Czechia's.
The two have swapped places 1 time across 36 shared years of data; in 1990 it was Czechia ahead.
Belgium ranks 24th and Czechia ranks 27th of 74 countries.
Across the 4 decades both report, Belgium averaged higher in 3 and Czechia in 1.
Head to head by decade
| Decade | Belgium | Czechia | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 10.10 million | 10.32 million | 221,564 | Czechia |
| 2000s | 10.45 million | 10.25 million | 198,110 | Belgium |
| 2010s | 11.20 million | 10.54 million | 657,590 | Belgium |
| 2020s | 11.69 million | 10.72 million | 965,867 | Belgium |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher population by age groups, Belgium or Czechia?
- Belgium, at 11.88 million against 10.91 million in Czechia as of 2025.
- What is the difference in population by age groups between Belgium and Czechia?
- 974,000, with Belgium ahead.
- How many years of comparable data are there for Belgium and Czechia?
- 36 years are reported by both, from 1990 to 2025.
- How do Belgium and Czechia rank globally for population by age groups?
- Belgium ranks 24th and Czechia ranks 27th of 74 countries.
- Where does this data come from?
- UNICEF, published as Population by age groups. Statizoid refreshes it automatically from the source and publishes the full history for both places.