Iran (Islamic Republic of) Population Pyramid 1966
Iran (Islamic Republic of) in 1966
As of 1966, Iran (Islamic Republic of) counted 25,829,270 inhabitants. A decade earlier, in 1956, the population was 19,204,386; it has grown by 34.5% since.
With a median age of 17.7 years, Iran (Islamic Republic of) had a youth dependency ratio of 87.2 and an old-age dependency ratio of 7.0 per 100 people of working age. This is an expansive pyramid — each cohort of children is larger than the one above it, the signature of high birth rates and rapid growth.
Data source: United Nations World Population Prospects, 2024 revision (medium variant) — last updated July 2024.
In 2023 women in Iran (Islamic Republic of) had on average 1.70 children, below the replacement level of 2.1.
Source: World Bank World Development Indicators, latest available year.
Life expectancy at birth was 77.7 years in 2023: 79.6 for women and 75.8 for men.
Source: World Bank World Development Indicators, latest available year.
3,828,929 immigrants live in Iran (Islamic Republic of), 4.2% of the population.
| Afghanistan | 3,752,317 |
| Iraq | 55,516 |
| Pakistan | 12,822 |
| Azerbaijan | 4,882 |
| Turkmenistan | 1,992 |
1,733,031 people born in Iran (Islamic Republic of) live in other countries.
| United States of America | 431,405 |
| Germany | 283,454 |
| Canada | 205,304 |
| Turkey | 199,735 |
| United Kingdom | 124,200 |
Source: United Nations International Migrant Stock 2024.
| Country | Population | Median age | Relative size |
|---|---|---|---|
| Iran (Islamic Republic of) | 25,829,270 | 17.7 | |
| Nepal | 11,408,711 | 19.6 | |
| Sri Lanka | 11,183,929 | 19.6 | |
| Afghanistan | 10,266,395 | 18.5 | |
| Bhutan | 269,820 | 19.2 |





