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
0
people
Median age
46.3
Fertility (TFR)
1.24
Working age (15–64)
65.5%
Trend
Declining (-0.08%)

Mexico

2026
0
people
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

vs

Mexico

133.0M

Youth (0-14)

Spain

12.3%

vs

Mexico

23.7%

Elderly (65+)

Spain

22.2%

vs

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):

Ages 0-4: Mexico has 83.1% more people
Men: 4.2M more in Mexico • Women: 4.1M more in Mexico
Spain: 873K men, 825K women • Mexico: 5.1M men, 4.9M women
Population Ratio
1.7M
10.0M
Ages 5-9: Mexico has 81.5% more people
Men: 4.3M more in Mexico • Women: 4.2M more in Mexico
Spain: 984K men, 934K women • Mexico: 5.3M men, 5.1M women
Population Ratio
1.9M
10.4M
Ages 10-14: Mexico has 79.4% more people
Men: 4.5M more in Mexico • Women: 4.3M more in Mexico
Spain: 1.2M men, 1.1M women • Mexico: 5.6M men, 5.4M women
Population Ratio
2.3M
11.1M
Ages 15-19: Mexico has 76.9% more people
Men: 4.3M more in Mexico • Women: 4.2M more in Mexico
Spain: 1.3M men, 1.3M women • Mexico: 5.7M men, 5.5M women
Population Ratio
2.6M
11.2M
Ages 20-24: Mexico has 76.5% more people
Men: 4.3M more in Mexico • Women: 4.2M more in Mexico
Spain: 1.3M men, 1.3M women • Mexico: 5.6M men, 5.5M women
Population Ratio
2.6M
11.1M
Ages 25-29: Mexico has 76.8% more people
Men: 4.1M more in Mexico • Women: 4.1M more in Mexico
Spain: 1.3M men, 1.2M women • Mexico: 5.3M men, 5.4M women
Population Ratio
2.5M
10.7M
Ages 30-34: Mexico has 75.2% more people
Men: 3.8M more in Mexico • Women: 4.0M more in Mexico
Spain: 1.3M men, 1.3M women • Mexico: 5.1M men, 5.3M women
Population Ratio
2.6M
10.4M
Ages 35-39: Mexico has 71.1% more people
Men: 3.3M more in Mexico • Women: 3.7M more in Mexico
Spain: 1.4M men, 1.4M women • Mexico: 4.7M men, 5.1M women
Population Ratio
2.8M
9.8M
Ages 40-44: Mexico has 64.0% more people
Men: 2.6M more in Mexico • Women: 3.1M more in Mexico
Spain: 1.6M men, 1.6M women • Mexico: 4.2M men, 4.8M women
Population Ratio
3.2M
8.9M
Ages 45-49: Mexico has 52.2% more people
Men: 1.7M more in Mexico • Women: 2.5M more in Mexico
Spain: 2.0M men, 1.9M women • Mexico: 3.7M men, 4.4M women
Population Ratio
3.9M
8.1M
Ages 50-54: Mexico has 47.3% more people
Men: 1.4M more in Mexico • Women: 2.1M more in Mexico
Spain: 2.0M men, 2.0M women • Mexico: 3.4M men, 4.1M women
Population Ratio
4.0M
7.5M
Ages 55-59: Mexico has 43.6% more people
Men: 1.2M more in Mexico • Women: 1.7M more in Mexico
Spain: 1.9M men, 1.9M women • Mexico: 3.0M men, 3.6M women
Population Ratio
3.7M
6.6M
Ages 60-64: Mexico has 36.4% more people
Men: 794K more in Mexico • Women: 1.2M more in Mexico
Spain: 1.7M men, 1.8M women • Mexico: 2.5M men, 3.0M women
Population Ratio
3.5M
5.5M
Ages 65-69: Mexico has 30.2% more people
Men: 513K more in Mexico • Women: 782K more in Mexico
Spain: 1.4M men, 1.6M women • Mexico: 1.9M men, 2.3M women
Population Ratio
3.0M
4.3M
Ages 70-74: Mexico has 22.7% more people
Men: 270K more in Mexico • Women: 434K more in Mexico
Spain: 1.1M men, 1.3M women • Mexico: 1.4M men, 1.7M women
Population Ratio
2.4M
3.1M
Ages 80-84: Spain has 20.6% more people
Men: 93K more in Spain • Women: 171K more in Spain
Spain: 646K men, 898K women • Mexico: 553K men, 726K women
Population Ratio
1.5M
1.3M
Ages 85-89: Spain has 43.6% more people
Men: 67K more in Spain • Women: 216K more in Spain
Spain: 351K men, 584K women • Mexico: 284K men, 368K women
Population Ratio
935K
652K
Ages 90-94: Spain has 128.1% more people
Men: 65K more in Spain • Women: 235K more in Spain
Spain: 171K men, 363K women • Mexico: 106K men, 128K women
Population Ratio
534K
234K
Ages 95-99: Spain has 184.1% more people
Men: 12K more in Spain • Women: 83K more in Spain
Spain: 38K men, 109K women • Mexico: 26K men, 26K women
Population Ratio
146K
52K
Ages 100+: Spain has 178.3% more people
Men: 76 more in Mexico • Women: 11K more in Spain
Spain: 4K men, 14K women • Mexico: 4K men, 3K women
Population Ratio
18K
6K

Demographic comparison, 2026

IndicatorSpainMexicoDifference
Population (2026)47,850,792132,997,657Mexico has 85.1 million more (2.8×)
Change 2025–2026-0.1% (Declining)+0.8% (Growing)
Median age (2026)46.330.0Spain older by 16.3 yrs
Total fertility rate1.24 — 0.86 below replacement1.85 — 0.25 below replacement
Fertility rate, 2030 (UN projection)1.261.79
Birth rate (per 1,000)6.815.0
Population 2050 (UN projection)44.9 million (-6.1%)148.9 million (+12.0%)
Peak populationPeaks 2023Peaks 2058

Differences by age group, 2026

AgeSpain (M / F)Mexico (M / F)Difference
0-4873K / 825K5101K / 4923KMexico has 490.4% more people aged 0-4
5-9984K / 934K5285K / 5101KMexico has 441.5% more people aged 5-9
10-141175K / 1109K5630K / 5438KMexico has 384.7% more people aged 10-14
15-191326K / 1252K5668K / 5493KMexico has 332.8% more people aged 15-19
20-241337K / 1272K5595K / 5488KMexico has 324.9% more people aged 20-24
25-291267K / 1208K5331K / 5353KMexico has 331.7% more people aged 25-29
30-341310K / 1277K5107K / 5314KMexico has 302.8% more people aged 30-34
35-391424K / 1411K4730K / 5081KMexico has 246.1% more people aged 35-39
40-441612K / 1600K4168K / 4750KMexico has 177.6% more people aged 40-44
45-491962K / 1919K3708K / 4417KMexico has 109.3% more people aged 45-49
50-542002K / 1955K3431K / 4085KMexico has 89.9% more people aged 50-54
55-591853K / 1870K3024K / 3577KMexico has 77.3% more people aged 55-59
60-641704K / 1784K2498K / 2989KMexico has 57.3% more people aged 60-64
65-691422K / 1567K1935K / 2349KMexico has 43.3% more people aged 65-69
70-741114K / 1283K1384K / 1717KMexico has 29.4% more people aged 70-74
75-79908K / 1134K921K / 1183KMexico has 3.0% more people aged 75-79
80-84646K / 898K553K / 726KSpain has 20.6% more people aged 80-84
85-89351K / 584K284K / 368KSpain has 43.6% more people aged 85-89
90-94171K / 363K106K / 128KSpain has 128.1% more people aged 90-94
95-9938K / 109K26K / 26KSpain has 184.1% more people aged 95-99
100+4K / 14K4K / 3KSpain 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%).