Chile vs Argentina: Population Comparison 2026
Argentina has 26,057,885 more people than Chile (2.3× as many): 46.0 million vs 19.9 million in 2026. Median age is 37.4 in Chile and 33.3 in Argentina; fertility is 1.12 vs 1.51 children per woman.
Chile
2026- Median age
- 37.4
- Fertility (TFR)
- 1.12
- Working age (15–64)
- 68.8%
- Trend
- Growing (+0.43%)
Argentina
2026- Median age
- 33.3
- Fertility (TFR)
- 1.51
- Working age (15–64)
- 66.7%
- Trend
- Growing (+0.33%)
Population pyramids, 2026
Total Population
Chile
19.9M
Argentina
46.0M
Youth (0-14)
Chile
16.1%
Argentina
20.4%
Elderly (65+)
Chile
15.1%
Argentina
12.9%
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 Chile and Argentina for each age group, split by gender:
Left Side (Males)
Blue = Chile has more males
Green = Argentina has more males
Right Side (Females)
Pink = Chile has more females
Orange = Argentina 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 Argentina has more males in that age group.
Notable Differences (>20% variance):
Demographic comparison, 2026
| Indicator | Chile | Argentina | Difference |
|---|---|---|---|
| Population (2026) | 19,945,849 | 46,003,734 | Argentina has 26.1 million more (2.3×) |
| Change 2025–2026 | +0.4% (Growing) | +0.3% (Growing) | |
| Median age (2026) | 37.4 | 33.3 | Chile older by 4.1 yrs |
| Total fertility rate | 1.12 — 0.98 below replacement | 1.51 — 0.59 below replacement | |
| Fertility rate, 2030 (UN projection) | 1.13 | 1.51 | |
| Birth rate (per 1,000) | 8.5 | 11.1 | |
| Population 2050 (UN projection) | 20.3 million (+1.9%) | 48.3 million (+5.0%) | |
| Peak population | Peaks 2041 | Peaks 2050 |
Differences by age group, 2026
| Age | Chile (M / F) | Argentina (M / F) | Difference |
|---|---|---|---|
| 0-4 | 455K / 437K | 1286K / 1225K | Argentina has 181.5% more people aged 0-4 |
| 5-9 | 552K / 532K | 1617K / 1538K | Argentina has 190.9% more people aged 5-9 |
| 10-14 | 631K / 608K | 1916K / 1812K | Argentina has 200.8% more people aged 10-14 |
| 15-19 | 630K / 606K | 1869K / 1766K | Argentina has 194.2% more people aged 15-19 |
| 20-24 | 643K / 623K | 1774K / 1693K | Argentina has 173.9% more people aged 20-24 |
| 25-29 | 747K / 730K | 1769K / 1700K | Argentina has 134.8% more people aged 25-29 |
| 30-34 | 829K / 812K | 1783K / 1723K | Argentina has 113.6% more people aged 30-34 |
| 35-39 | 825K / 807K | 1696K / 1645K | Argentina has 104.6% more people aged 35-39 |
| 40-44 | 743K / 732K | 1606K / 1573K | Argentina has 115.6% more people aged 40-44 |
| 45-49 | 684K / 677K | 1558K / 1533K | Argentina has 127.2% more people aged 45-49 |
| 50-54 | 645K / 647K | 1344K / 1352K | Argentina has 108.7% more people aged 50-54 |
| 55-59 | 608K / 621K | 1114K / 1155K | Argentina has 84.6% more people aged 55-59 |
| 60-64 | 545K / 574K | 993K / 1053K | Argentina has 82.9% more people aged 60-64 |
| 65-69 | 464K / 501K | 858K / 959K | Argentina has 88.3% more people aged 65-69 |
| 70-74 | 366K / 409K | 685K / 835K | Argentina has 96.1% more people aged 70-74 |
| 75-79 | 260K / 307K | 489K / 674K | Argentina has 105.0% more people aged 75-79 |
| 80-84 | 151K / 195K | 289K / 473K | Argentina has 120.3% more people aged 80-84 |
| 85-89 | 82K / 119K | 136K / 276K | Argentina has 105.2% more people aged 85-89 |
| 90-94 | 39K / 64K | 49K / 127K | Argentina has 71.1% more people aged 90-94 |
| 95-99 | 13K / 25K | 11K / 40K | Argentina has 36.5% more people aged 95-99 |
| 100+ | 2K / 5K | 2K / 8K | Argentina has 25.0% more people aged 100+ |
Frequently Asked Questions
Which has more people, Chile or Argentina?
Argentina has more: 46.0 million vs 19.9 million in 2026 — 2.3× as many, 26.1 million more people.
Which country is older?
Chile, with a median age of 37.4 vs 33.3 in Argentina (2026).
Which has higher fertility?
Argentina, at 1.51 children per woman vs 1.12 in Chile. Replacement is 2.1, so both are below it.
How will Chile and Argentina compare in 2050?
By 2050 the UN projects Chile at 20.3 million (+1.9% from 2026) and Argentina at 48.3 million (+5.0%).
Are Chile and Argentina growing or shrinking?
Chile is growing (+0.4% in 2026); Argentina is growing (+0.3%).