Spain vs Mexico: Population Comparison 2026
Mexico has 85,146,865 more people than Spain (2.8× as many): 133.0 million vs 47.9 million in 2026. Median age is 46.3 in Spain and 30.0 in Mexico; fertility is 1.24 vs 1.85 children per woman.
Spain
2026- Median age
- 46.3
- Fertility (TFR)
- 1.24
- Working age (15–64)
- 65.5%
- Trend
- Declining (-0.08%)
Mexico
2026- Median age
- 30.0
- Fertility (TFR)
- 1.85
- Working age (15–64)
- 67.5%
- Trend
- Growing (+0.80%)
Population pyramids, 2026
Total Population
Spain
47.9M
Mexico
133.0M
Youth (0-14)
Spain
12.3%
Mexico
23.7%
Elderly (65+)
Spain
22.2%
Mexico
8.8%
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 Spain and Mexico for each age group, split by gender:
Left Side (Males)
Blue = Spain has more males
Green = Mexico has more males
Right Side (Females)
Pink = Spain has more females
Orange = Mexico 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 Mexico has more males in that age group.
Notable Differences (>20% variance):
Demographic comparison, 2026
| Indicator | Spain | Mexico | Difference |
|---|---|---|---|
| Population (2026) | 47,850,792 | 132,997,657 | Mexico has 85.1 million more (2.8×) |
| Change 2025–2026 | -0.1% (Declining) | +0.8% (Growing) | |
| Median age (2026) | 46.3 | 30.0 | Spain older by 16.3 yrs |
| Total fertility rate | 1.24 — 0.86 below replacement | 1.85 — 0.25 below replacement | |
| Fertility rate, 2030 (UN projection) | 1.26 | 1.79 | |
| Birth rate (per 1,000) | 6.8 | 15.0 | |
| Population 2050 (UN projection) | 44.9 million (-6.1%) | 148.9 million (+12.0%) | |
| Peak population | Peaks 2023 | Peaks 2058 |
Differences by age group, 2026
| Age | Spain (M / F) | Mexico (M / F) | Difference |
|---|---|---|---|
| 0-4 | 873K / 825K | 5101K / 4923K | Mexico has 490.4% more people aged 0-4 |
| 5-9 | 984K / 934K | 5285K / 5101K | Mexico has 441.5% more people aged 5-9 |
| 10-14 | 1175K / 1109K | 5630K / 5438K | Mexico has 384.7% more people aged 10-14 |
| 15-19 | 1326K / 1252K | 5668K / 5493K | Mexico has 332.8% more people aged 15-19 |
| 20-24 | 1337K / 1272K | 5595K / 5488K | Mexico has 324.9% more people aged 20-24 |
| 25-29 | 1267K / 1208K | 5331K / 5353K | Mexico has 331.7% more people aged 25-29 |
| 30-34 | 1310K / 1277K | 5107K / 5314K | Mexico has 302.8% more people aged 30-34 |
| 35-39 | 1424K / 1411K | 4730K / 5081K | Mexico has 246.1% more people aged 35-39 |
| 40-44 | 1612K / 1600K | 4168K / 4750K | Mexico has 177.6% more people aged 40-44 |
| 45-49 | 1962K / 1919K | 3708K / 4417K | Mexico has 109.3% more people aged 45-49 |
| 50-54 | 2002K / 1955K | 3431K / 4085K | Mexico has 89.9% more people aged 50-54 |
| 55-59 | 1853K / 1870K | 3024K / 3577K | Mexico has 77.3% more people aged 55-59 |
| 60-64 | 1704K / 1784K | 2498K / 2989K | Mexico has 57.3% more people aged 60-64 |
| 65-69 | 1422K / 1567K | 1935K / 2349K | Mexico has 43.3% more people aged 65-69 |
| 70-74 | 1114K / 1283K | 1384K / 1717K | Mexico has 29.4% more people aged 70-74 |
| 75-79 | 908K / 1134K | 921K / 1183K | Mexico has 3.0% more people aged 75-79 |
| 80-84 | 646K / 898K | 553K / 726K | Spain has 20.6% more people aged 80-84 |
| 85-89 | 351K / 584K | 284K / 368K | Spain has 43.6% more people aged 85-89 |
| 90-94 | 171K / 363K | 106K / 128K | Spain has 128.1% more people aged 90-94 |
| 95-99 | 38K / 109K | 26K / 26K | Spain has 184.1% more people aged 95-99 |
| 100+ | 4K / 14K | 4K / 3K | Spain has 178.3% more people aged 100+ |
Frequently Asked Questions
Which has more people, Spain or Mexico?
Mexico has more: 133.0 million vs 47.9 million in 2026 — 2.8× as many, 85.1 million more people.
Which country is older?
Spain, with a median age of 46.3 vs 30.0 in Mexico (2026).
Which has higher fertility?
Mexico, at 1.85 children per woman vs 1.24 in Spain. Replacement is 2.1, so both are below it.
How will Spain and Mexico compare in 2050?
By 2050 the UN projects Spain at 44.9 million (-6.1% from 2026) and Mexico at 148.9 million (+12.0%).
Are Spain and Mexico growing or shrinking?
Spain is declining (-0.1% in 2026); Mexico is growing (+0.8%).