Japan vs Italy: Population Comparison 2026
Japan has 63,501,564 more people than Italy (2.1× as many): 122.4 million vs 58.9 million in 2026. Median age is 50.2 in Japan and 48.6 in Italy; fertility is 1.23 vs 1.22 children per woman.
Japan
2026- Median age
- 50.2
- Fertility (TFR)
- 1.23
- Working age (15–64)
- 58.8%
- Trend
- Declining (-0.55%)
Italy
2026- Median age
- 48.6
- Fertility (TFR)
- 1.22
- Working age (15–64)
- 63.0%
- Trend
- Declining (-0.37%)
Population pyramids, 2026
Total Population
Japan
122.4M
Italy
58.9M
Youth (0-14)
Japan
11.0%
Italy
11.4%
Elderly (65+)
Japan
30.2%
Italy
25.6%
Where the two pyramids differ
The pyramids are overlaid so you can read the difference by age and sex: the longer bar in each band marks the country with more people of that age.
📊 Understanding the Population Difference Chart
This visualization shows where and by how much the populations differ between Japan and Italy for each age group, split by gender:
Left Side (Males)
Blue = Japan has more males
Green = Italy has more males
Right Side (Females)
Pink = Japan has more females
Orange = Italy has more females
💡 How to Read: Each age group shows up to 2 bars - one on the left (male difference) and one on the right (female difference). The bar's color tells you which country has more people, and the bar's length shows by how much. For example, if you see a green bar on the left, it means Italy has more males in that age group.
Notable Differences (>20% variance):
Demographic comparison, 2026
| Indicator | Japan | Italy | Difference |
|---|---|---|---|
| Population (2026) | 122,427,731 | 58,926,167 | Japan has 63.5 million more (2.1×) |
| Change 2025–2026 | -0.5% (Declining) | -0.4% (Declining) | |
| Median age (2026) | 50.2 | 48.6 | Japan older by 1.6 yrs |
| Total fertility rate | 1.23 — 0.87 below replacement | 1.22 — 0.88 below replacement | |
| Fertility rate, 2030 (UN projection) | 1.26 | 1.25 | |
| Birth rate (per 1,000) | 6.1 | 6.4 | |
| Population 2050 (UN projection) | 105.1 million (-14.1%) | 51.9 million (-11.9%) | |
| Peak population | Peaks 2009 | Peaks 2014 |
Differences by age group, 2026
| Age | Japan (M / F) | Italy (M / F) | Difference |
|---|---|---|---|
| 0-4 | 1968K / 1879K | 1014K / 956K | Japan has 95.4% more people aged 0-4 |
| 5-9 | 2301K / 2192K | 1137K / 1075K | Japan has 103.2% more people aged 5-9 |
| 10-14 | 2663K / 2521K | 1315K / 1242K | Japan has 102.7% more people aged 10-14 |
| 15-19 | 2897K / 2746K | 1486K / 1403K | Japan has 95.3% more people aged 15-19 |
| 20-24 | 3148K / 3004K | 1590K / 1499K | Japan has 99.1% more people aged 20-24 |
| 25-29 | 3134K / 3011K | 1625K / 1472K | Japan has 98.4% more people aged 25-29 |
| 30-34 | 3062K / 2942K | 1631K / 1529K | Japan has 90.0% more people aged 30-34 |
| 35-39 | 3217K / 3101K | 1693K / 1648K | Japan has 89.1% more people aged 35-39 |
| 40-44 | 3605K / 3524K | 1758K / 1737K | Japan has 104.0% more people aged 40-44 |
| 45-49 | 4098K / 4031K | 2003K / 1992K | Japan has 103.5% more people aged 45-49 |
| 50-54 | 4934K / 4866K | 2307K / 2338K | Japan has 111.0% more people aged 50-54 |
| 55-59 | 4495K / 4412K | 2347K / 2431K | Japan has 86.4% more people aged 55-59 |
| 60-64 | 3878K / 3829K | 2247K / 2369K | Japan has 67.0% more people aged 60-64 |
| 65-69 | 3575K / 3647K | 1875K / 2041K | Japan has 84.4% more people aged 65-69 |
| 70-74 | 3605K / 3893K | 1569K / 1779K | Japan has 123.9% more people aged 70-74 |
| 75-79 | 4025K / 4786K | 1398K / 1677K | Japan has 186.5% more people aged 75-79 |
| 80-84 | 2574K / 3459K | 941K / 1259K | Japan has 174.3% more people aged 80-84 |
| 85-89 | 1627K / 2678K | 620K / 987K | Japan has 167.8% more people aged 85-89 |
| 90-94 | 683K / 1586K | 232K / 487K | Japan has 215.8% more people aged 90-94 |
| 95-99 | 153K / 551K | 48K / 147K | Japan has 261.2% more people aged 95-99 |
| 100+ | 18K / 108K | 4K / 20K | Japan has 418.4% more people aged 100+ |
Frequently Asked Questions
Which has more people, Japan or Italy?
Japan has more: 122.4 million vs 58.9 million in 2026 — 2.1× as many, 63.5 million more people.
Which country is older?
Japan, with a median age of 50.2 vs 48.6 in Italy (2026).
Which has higher fertility?
Japan, at 1.23 children per woman vs 1.22 in Italy. Replacement is 2.1, so both are below it.
How will Japan and Italy compare in 2050?
By 2050 the UN projects Japan at 105.1 million (-14.1% from 2026) and Italy at 51.9 million (-11.9%).
Are Japan and Italy growing or shrinking?
Japan is declining (-0.5% in 2026); Italy is declining (-0.4%).