Hong Kong, China vs Iran, Islamic Republic of: Theoretical duration of secondary education
Hong Kong, China
6 years
in 2025
Iran, Islamic Republic of
6 years
in 2025
Hong Kong, China rank
99th
Iran, Islamic Republic of rank
99th
Theoretical duration of secondary education over time
- Hong Kong, China
- Iran, Islamic Republic of
How they compare
Hong Kong, China currently reports 6 years against 6 years in Iran, Islamic Republic of, a difference of 0 years.
The two have swapped places 1 time across 56 shared years of data; in 1970 it was Hong Kong, China ahead.
Hong Kong, China ranks 99th and Iran, Islamic Republic of ranks 99th of 221 countries.
Across the 6 decades both report, Hong Kong, China averaged higher in 1 and Iran, Islamic Republic of in 1.
Head to head by decade
| Decade | Hong Kong, China | Iran, Islamic Republic of | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 7 years | 6.2 years | 0.8 years | Hong Kong, China |
| 1980s | 7 years | 7 years | 0 years | — |
| 1990s | 7 years | 7 years | 0 years | — |
| 2000s | 7 years | 7 years | 0 years | — |
| 2010s | 6.2 years | 6.3 years | 0.1 years | Iran, Islamic Republic of |
| 2020s | 6 years | 6 years | 0 years | — |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher theoretical duration of secondary education, Hong Kong, China or Iran, Islamic Republic of?
- Hong Kong, China, at 6 years against 6 years in Iran, Islamic Republic of as of 2025.
- What is the difference in theoretical duration of secondary education between Hong Kong, China and Iran, Islamic Republic of?
- 0 years, with Hong Kong, China ahead.
- How many years of comparable data are there for Hong Kong, China and Iran, Islamic Republic of?
- 56 years are reported by both, from 1970 to 2025.
- How do Hong Kong, China and Iran, Islamic Republic of rank globally for theoretical duration of secondary education?
- Hong Kong, China ranks 99th and Iran, Islamic Republic of ranks 99th of 221 countries.
- Where does this data come from?
- UNESCO Institute for Statistics, published as Theoretical duration of secondary education (years). Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
February 2026 Data Release