Iran vs Japan: Population regions with projections

Iran
80.05 million
in 2100
Japan
76.85 million
in 2100
Iran rank
31st
Japan rank
33rd

Population regions with projections over time

  • Iran
  • Japan
025.0M50.0M75.0M100.0M125.0M100015502100

How they compare

Iran currently reports 80.05 million against 76.85 million in Japan, a difference of 3.20 million.

The two have swapped places 1 time across 318 shared years of data; in 1000 it was Japan ahead.

Iran ranks 31st and Japan ranks 33rd of 239 countries.

Across the 48 decades both report, Iran averaged higher in 5 and Japan in 43.

Head to head by decade

Decade Iran Japan Difference Ahead
1000s 4.50 million 6.00 million 1.50 million Japan
1100s 4.75 million 6.20 million 1.45 million Japan
1200s 5.00 million 6.40 million 1.40 million Japan
1300s 3.50 million 7.30 million 3.80 million Japan
1400s 3.75 million 9.30 million 5.55 million Japan
1500s 4.00 million 12.30 million 8.30 million Japan
1600s 5.00 million 17.00 million 12.00 million Japan
1700s 5.00 million 26.70 million 21.70 million Japan
1710s 5.21 million 29.00 million 23.79 million Japan
1720s 5.32 million 29.00 million 23.68 million Japan
1730s 5.43 million 29.00 million 23.57 million Japan
1740s 5.55 million 29.00 million 23.45 million Japan
1750s 5.67 million 29.00 million 23.33 million Japan
1760s 5.79 million 28.80 million 23.01 million Japan
1770s 5.91 million 28.60 million 22.69 million Japan
1780s 6.03 million 28.40 million 22.37 million Japan
1790s 6.16 million 28.20 million 22.04 million Japan
1800s 6.12 million 28.65 million 22.53 million Japan
1810s 6.40 million 30.15 million 23.74 million Japan
1820s 6.69 million 31.14 million 24.44 million Japan
1830s 7.00 million 31.48 million 24.48 million Japan
1840s 7.32 million 31.82 million 24.50 million Japan
1850s 7.71 million 32.56 million 24.85 million Japan
1860s 8.18 million 33.81 million 25.63 million Japan
1870s 8.60 million 35.60 million 27.01 million Japan
1880s 8.91 million 38.42 million 29.50 million Japan
1890s 9.55 million 42.08 million 32.53 million Japan
1900s 10.58 million 46.80 million 36.22 million Japan
1910s 10.22 million 52.69 million 42.47 million Japan
1920s 10.74 million 59.97 million 49.23 million Japan
1930s 13.86 million 68.59 million 54.73 million Japan
1940s 15.87 million 78.34 million 62.47 million Japan
1950s 18.55 million 91.55 million 73.00 million Japan
1960s 24.74 million 100.60 million 75.86 million Japan
1970s 33.49 million 112.40 million 78.92 million Japan
1980s 48.61 million 120.67 million 72.07 million Japan
1990s 62.12 million 125.31 million 63.19 million Japan
2000s 71.27 million 127.76 million 56.49 million Japan
2010s 82.17 million 127.45 million 45.28 million Japan
2020s 91.67 million 123.37 million 31.70 million Japan
2030s 97.42 million 116.25 million 18.82 million Japan
2040s 100.77 million 108.93 million 8.16 million Japan
2050s 101.78 million 102.03 million 258,240 Japan
2060s 99.27 million 94.71 million 4.56 million Iran
2070s 94.11 million 87.76 million 6.35 million Iran
2080s 88.26 million 82.81 million 5.45 million Iran
2090s 82.92 million 78.93 million 3.98 million Iran
2100s 80.05 million 76.85 million 3.20 million Iran

Averages of every year both report within each decade.

Frequently asked questions

Which has higher population regions with projections, Iran or Japan?
Iran, at 80.05 million against 76.85 million in Japan as of 2100.
What is the difference in population regions with projections between Iran and Japan?
3.20 million, with Iran ahead.
How many years of comparable data are there for Iran and Japan?
318 years are reported by both, from 1000 to 2100.
How do Iran and Japan rank globally for population regions with projections?
Iran ranks 31st and Japan ranks 33rd of 239 countries.
Where does this data come from?
Our World in Data, published as Population regions with projections. 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

Iran vs Japan: Population regions with projections. Statizoid, drawing on Our World in Data. Retrieved 11 November 2026, from https://population.statizoid.com/compare/population-regions-with-projections/iran-islamic-rep/japan/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (Our World in Data); please keep the attribution.

<a href="https://population.statizoid.com/compare/population-regions-with-projections/iran-islamic-rep/japan/">Iran vs Japan: Population regions with projections</a> — Statizoid

About this data

Indicator
Population regions with projections
Source
Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
239 places, 69,174 data points, 1000–2100
Last refreshed