USA vs Mexico: Population Comparison 2026

The United States has 216,037,837 more people than Mexico (2.6× as many): 349.0 million vs 133.0 million in 2026. Median age is 38.7 in the United States and 30.0 in Mexico; fertility is 1.63 vs 1.85 children per woman.

United States

2026
0
people
Median age
38.7
Fertility (TFR)
1.63
Working age (15–64)
64.3%
Trend
Growing (+0.51%)

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

United States

349.0M

vs

Mexico

133.0M

Youth (0-14)

United States

16.9%

vs

Mexico

23.7%

Elderly (65+)

United States

18.8%

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 United States and Mexico for each age group, split by gender:

Left Side (Males)

Blue = United States has more males

Green = Mexico has more males

Right Side (Females)

Pink = United States 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: United States has 85.9% more people
Men: 4.4M more in United States • Women: 4.2M more in United States
United States: 9.5M men, 9.1M women • Mexico: 5.1M men, 4.9M women
Population Ratio
18.6M
10.0M
Ages 5-9: United States has 86.8% more people
Men: 4.7M more in United States • Women: 4.4M more in United States
United States: 9.9M men, 9.5M women • Mexico: 5.3M men, 5.1M women
Population Ratio
19.4M
10.4M
Ages 10-14: United States has 89.4% more people
Men: 5.1M more in United States • Women: 4.8M more in United States
United States: 10.8M men, 10.2M women • Mexico: 5.6M men, 5.4M women
Population Ratio
21.0M
11.1M
Ages 15-19: United States has 103.1% more people
Men: 6.0M more in United States • Women: 5.5M more in United States
United States: 11.7M men, 11.0M women • Mexico: 5.7M men, 5.5M women
Population Ratio
22.7M
11.2M
Ages 20-24: United States has 112.3% more people
Men: 6.5M more in United States • Women: 5.9M more in United States
United States: 12.1M men, 11.4M women • Mexico: 5.6M men, 5.5M women
Population Ratio
23.5M
11.1M
Ages 25-29: United States has 113.6% more people
Men: 6.5M more in United States • Women: 5.7M more in United States
United States: 11.8M men, 11.0M women • Mexico: 5.3M men, 5.4M women
Population Ratio
22.8M
10.7M
Ages 30-34: United States has 125.6% more people
Men: 7.1M more in United States • Women: 6.0M more in United States
United States: 12.2M men, 11.3M women • Mexico: 5.1M men, 5.3M women
Population Ratio
23.5M
10.4M
Ages 35-39: United States has 148.1% more people
Men: 7.8M more in United States • Women: 6.7M more in United States
United States: 12.6M men, 11.8M women • Mexico: 4.7M men, 5.1M women
Population Ratio
24.3M
9.8M
Ages 40-44: United States has 161.5% more people
Men: 7.8M more in United States • Women: 6.6M more in United States
United States: 12.0M men, 11.3M women • Mexico: 4.2M men, 4.8M women
Population Ratio
23.3M
8.9M
Ages 45-49: United States has 169.9% more people
Men: 7.5M more in United States • Women: 6.3M more in United States
United States: 11.2M men, 10.7M women • Mexico: 3.7M men, 4.4M women
Population Ratio
21.9M
8.1M
Ages 50-54: United States has 168.6% more people
Men: 6.8M more in United States • Women: 5.8M more in United States
United States: 10.3M men, 9.9M women • Mexico: 3.4M men, 4.1M women
Population Ratio
20.2M
7.5M
Ages 55-59: United States has 214.6% more people
Men: 7.5M more in United States • Women: 6.7M more in United States
United States: 10.5M men, 10.3M women • Mexico: 3.0M men, 3.6M women
Population Ratio
20.8M
6.6M
Ages 60-64: United States has 286.5% more people
Men: 8.1M more in United States • Women: 7.7M more in United States
United States: 10.5M men, 10.7M women • Mexico: 2.5M men, 3.0M women
Population Ratio
21.2M
5.5M
Ages 65-69: United States has 374.8% more people
Men: 8.0M more in United States • Women: 8.1M more in United States
United States: 9.9M men, 10.4M women • Mexico: 1.9M men, 2.3M women
Population Ratio
20.3M
4.3M
Ages 70-74: United States has 448.9% more people
Men: 6.7M more in United States • Women: 7.3M more in United States
United States: 8.0M men, 9.0M women • Mexico: 1.4M men, 1.7M women
Population Ratio
17.0M
3.1M
Ages 75-79: United States has 525.2% more people
Men: 5.1M more in United States • Women: 5.9M more in United States
United States: 6.0M men, 7.1M women • Mexico: 921K men, 1.2M women
Population Ratio
13.2M
2.1M
Ages 80-84: United States has 546.2% more people
Men: 3.1M more in United States • Women: 3.9M more in United States
United States: 3.6M men, 4.6M women • Mexico: 553K men, 726K women
Population Ratio
8.3M
1.3M
Ages 85-89: United States has 574.6% more people
Men: 1.5M more in United States • Women: 2.3M more in United States
United States: 1.8M men, 2.6M women • Mexico: 284K men, 368K women
Population Ratio
4.4M
652K
Ages 90-94: United States has 735.2% more people
Men: 588K more in United States • Women: 1.1M more in United States
United States: 694K men, 1.3M women • Mexico: 106K men, 128K women
Population Ratio
2.0M
234K
Ages 95-99: United States has 966.4% more people
Men: 140K more in United States • Women: 358K more in United States
United States: 166K men, 384K women • Mexico: 26K men, 26K women
Population Ratio
550K
52K
Ages 100+: United States has 1114.3% more people
Men: 14K more in United States • Women: 56K more in United States
United States: 18K men, 59K women • Mexico: 4K men, 3K women
Population Ratio
77K
6K

Demographic comparison, 2026

IndicatorUnited StatesMexicoDifference
Population (2026)349,035,494132,997,657United States has 216.0 million more (2.6×)
Change 2025–2026+0.5% (Growing)+0.8% (Growing)
Median age (2026)38.730.0United States older by 8.7 yrs
Total fertility rate1.63 — 0.48 below replacement1.85 — 0.25 below replacement
Fertility rate, 2030 (UN projection)1.631.79
Birth rate (per 1,000)10.515.0
Population 2050 (UN projection)380.8 million (+9.1%)148.9 million (+12.0%)
Peak populationPeaks 2100Peaks 2058

Differences by age group, 2026

AgeUnited States (M / F)Mexico (M / F)Difference
0-49549K / 9091K5101K / 4923KUnited States has 85.9% more people aged 0-4
5-99938K / 9464K5285K / 5101KUnited States has 86.8% more people aged 5-9
10-1410774K / 10190K5630K / 5438KUnited States has 89.4% more people aged 10-14
15-1911671K / 11002K5668K / 5493KUnited States has 103.1% more people aged 15-19
20-2412122K / 11403K5595K / 5488KUnited States has 112.3% more people aged 20-24
25-2911801K / 11017K5331K / 5353KUnited States has 113.6% more people aged 25-29
30-3412170K / 11342K5107K / 5314KUnited States has 125.6% more people aged 30-34
35-3912570K / 11772K4730K / 5081KUnited States has 148.1% more people aged 35-39
40-4412004K / 11314K4168K / 4750KUnited States has 161.5% more people aged 40-44
45-4911227K / 10699K3708K / 4417KUnited States has 169.9% more people aged 45-49
50-5410280K / 9907K3431K / 4085KUnited States has 168.6% more people aged 50-54
55-5910481K / 10283K3024K / 3577KUnited States has 214.6% more people aged 55-59
60-6410548K / 10660K2498K / 2989KUnited States has 286.5% more people aged 60-64
65-699910K / 10428K1935K / 2349KUnited States has 374.8% more people aged 65-69
70-748040K / 8981K1384K / 1717KUnited States has 448.9% more people aged 70-74
75-796042K / 7108K921K / 1183KUnited States has 525.2% more people aged 75-79
80-843636K / 4632K553K / 726KUnited States has 546.2% more people aged 80-84
85-891758K / 2638K284K / 368KUnited States has 574.6% more people aged 85-89
90-94694K / 1262K106K / 128KUnited States has 735.2% more people aged 90-94
95-99166K / 384K26K / 26KUnited States has 966.4% more people aged 95-99
100+18K / 59K4K / 3KUnited States has 1114.3% more people aged 100+

Frequently Asked Questions

Which has more people, USA or Mexico?

The United States has more: 349.0 million vs 133.0 million in 2026 — 2.6× as many, 216.0 million more people.

Which country is older?

The United States, with a median age of 38.7 vs 30.0 in Mexico (2026).

Which has higher fertility?

Mexico, at 1.85 children per woman vs 1.63 in the United States. Replacement is 2.1, so both are below it.

How will USA and Mexico compare in 2050?

By 2050 the UN projects the United States at 380.8 million (+9.1% from 2026) and Mexico at 148.9 million (+12.0%).

Are USA and Mexico growing or shrinking?

The United States is growing (+0.5% in 2026); Mexico is growing (+0.8%).