PopulationPyramids
UN World Population Prospects Data Visualized

USA vs Iran: Population Comparison 2026

The United States has 255,866,997 more people than Iran (3.7× as many): 349.0 million vs 93.2 million in 2026. Median age is 38.7 in the United States and 34.5 in Iran; fertility is 1.63 vs 1.66 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%)

Iran

2026
0
people
Median age
34.5
Fertility (TFR)
1.66
Working age (15–64)
69.5%
Trend
Growing (+0.81%)

Population pyramids, 2026

Total Population

United States

349.0M

vs

Iran

93.2M

Youth (0-14)

United States

16.9%

vs

Iran

21.6%

Elderly (65+)

United States

18.8%

vs

Iran

8.9%

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

Left Side (Males)

Blue = United States has more males

Green = Iran has more males

Right Side (Females)

Pink = United States has more females

Orange = Iran 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 Iran has more males in that age group.

Notable Differences (>20% variance):

Ages 0-4: United States has 221.9% more people
Men: 6.6M more in United States • Women: 6.3M more in United States
United States: 9.5M men, 9.1M women • Iran: 3.0M men, 2.8M women
Population Ratio
18.6M
5.8M
Ages 5-9: United States has 183.3% more people
Men: 6.4M more in United States • Women: 6.1M more in United States
United States: 9.9M men, 9.5M women • Iran: 3.5M men, 3.3M women
Population Ratio
19.4M
6.8M
Ages 10-14: United States has 181.2% more people
Men: 6.9M more in United States • Women: 6.6M more in United States
United States: 10.8M men, 10.2M women • Iran: 3.8M men, 3.6M women
Population Ratio
21.0M
7.5M
Ages 15-19: United States has 242.3% more people
Men: 8.3M more in United States • Women: 7.8M more in United States
United States: 11.7M men, 11.0M women • Iran: 3.4M men, 3.2M women
Population Ratio
22.7M
6.6M
Ages 20-24: United States has 295.6% more people
Men: 9.1M more in United States • Women: 8.5M more in United States
United States: 12.1M men, 11.4M women • Iran: 3.0M men, 2.9M women
Population Ratio
23.5M
5.9M
Ages 25-29: United States has 283.6% more people
Men: 8.8M more in United States • Women: 8.1M more in United States
United States: 11.8M men, 11.0M women • Iran: 3.0M men, 2.9M women
Population Ratio
22.8M
5.9M
Ages 30-34: United States has 230.8% more people
Men: 8.6M more in United States • Women: 7.8M more in United States
United States: 12.2M men, 11.3M women • Iran: 3.6M men, 3.5M women
Population Ratio
23.5M
7.1M
Ages 35-39: United States has 175.6% more people
Men: 8.1M more in United States • Women: 7.4M more in United States
United States: 12.6M men, 11.8M women • Iran: 4.5M men, 4.3M women
Population Ratio
24.3M
8.8M
Ages 40-44: United States has 161.2% more people
Men: 7.5M more in United States • Women: 6.9M more in United States
United States: 12.0M men, 11.3M women • Iran: 4.5M men, 4.4M women
Population Ratio
23.3M
8.9M
Ages 45-49: United States has 207.9% more people
Men: 7.6M more in United States • Women: 7.2M more in United States
United States: 11.2M men, 10.7M women • Iran: 3.6M men, 3.5M women
Population Ratio
21.9M
7.1M
Ages 50-54: United States has 259.4% more people
Men: 7.4M more in United States • Women: 7.2M more in United States
United States: 10.3M men, 9.9M women • Iran: 2.9M men, 2.7M women
Population Ratio
20.2M
5.6M
Ages 55-59: United States has 333.7% more people
Men: 8.1M more in United States • Women: 7.9M more in United States
United States: 10.5M men, 10.3M women • Iran: 2.4M men, 2.4M women
Population Ratio
20.8M
4.8M
Ages 60-64: United States has 453.8% more people
Men: 8.6M more in United States • Women: 8.7M more in United States
United States: 10.5M men, 10.7M women • Iran: 1.9M men, 1.9M women
Population Ratio
21.2M
3.8M
Ages 65-69: United States has 546.5% more people
Men: 8.4M more in United States • Women: 8.8M more in United States
United States: 9.9M men, 10.4M women • Iran: 1.6M men, 1.6M women
Population Ratio
20.3M
3.1M
Ages 70-74: United States has 611.3% more people
Men: 6.9M more in United States • Women: 7.8M more in United States
United States: 8.0M men, 9.0M women • Iran: 1.2M men, 1.2M women
Population Ratio
17.0M
2.4M
Ages 75-79: United States has 729.4% more people
Men: 5.3M more in United States • Women: 6.3M more in United States
United States: 6.0M men, 7.1M women • Iran: 777K men, 809K women
Population Ratio
13.2M
1.6M
Ages 80-84: United States has 956.8% more people
Men: 3.3M more in United States • Women: 4.2M more in United States
United States: 3.6M men, 4.6M women • Iran: 357K men, 425K women
Population Ratio
8.3M
782K
Ages 85-89: United States has 1236.9% more people
Men: 1.6M more in United States • Women: 2.4M more in United States
United States: 1.8M men, 2.6M women • Iran: 134K men, 195K women
Population Ratio
4.4M
329K
Ages 90-94: United States has 2179.8% more people
Men: 666K more in United States • Women: 1.2M more in United States
United States: 694K men, 1.3M women • Iran: 28K men, 57K women
Population Ratio
2.0M
86K
Ages 95-99: United States has 4823.9% more people
Men: 163K more in United States • Women: 376K more in United States
United States: 166K men, 384K women • Iran: 3K men, 8K women
Population Ratio
550K
11K
Ages 100+: United States has 12367.0% more people
Men: 18K more in United States • Women: 59K more in United States
United States: 18K men, 59K women • Iran: 118 men, 500 women
Population Ratio
77K
618

Demographic comparison, 2026

IndicatorUnited StatesIranDifference
Population (2026)349,035,49493,168,497United States has 255.9 million more (3.7×)
Change 2025–2026+0.5% (Growing)+0.8% (Growing)
Median age (2026)38.734.5United States older by 4.2 yrs
Total fertility rate1.63 — 0.48 below replacement1.66 — 0.44 below replacement
Fertility rate, 2030 (UN projection)1.631.63
Birth rate (per 1,000)10.511.8
Population 2050 (UN projection)380.8 million (+9.1%)101.9 million (+9.3%)
Peak populationPeaks 2100Peaks 2053

Differences by age group, 2026

AgeUnited States (M / F)Iran (M / F)Difference
0-49549K / 9091K2967K / 2823KUnited States has 221.9% more people aged 0-4
5-99938K / 9464K3516K / 3334KUnited States has 183.3% more people aged 5-9
10-1410774K / 10190K3839K / 3616KUnited States has 181.2% more people aged 10-14
15-1911671K / 11002K3401K / 3222KUnited States has 242.3% more people aged 15-19
20-2412122K / 11403K3041K / 2905KUnited States has 295.6% more people aged 20-24
25-2911801K / 11017K3030K / 2918KUnited States has 283.6% more people aged 25-29
30-3412170K / 11342K3615K / 3492KUnited States has 230.8% more people aged 30-34
35-3912570K / 11772K4492K / 4341KUnited States has 175.6% more people aged 35-39
40-4412004K / 11314K4536K / 4390KUnited States has 161.2% more people aged 40-44
45-4911227K / 10699K3630K / 3490KUnited States has 207.9% more people aged 45-49
50-5410280K / 9907K2872K / 2746KUnited States has 259.4% more people aged 50-54
55-5910481K / 10283K2419K / 2369KUnited States has 333.7% more people aged 55-59
60-6410548K / 10660K1908K / 1922KUnited States has 453.8% more people aged 60-64
65-699910K / 10428K1557K / 1589KUnited States has 546.5% more people aged 65-69
70-748040K / 8981K1187K / 1206KUnited States has 611.3% more people aged 70-74
75-796042K / 7108K777K / 809KUnited States has 729.4% more people aged 75-79
80-843636K / 4632K357K / 425KUnited States has 956.8% more people aged 80-84
85-891758K / 2638K134K / 195KUnited States has 1236.9% more people aged 85-89
90-94694K / 1262K28K / 57KUnited States has 2179.8% more people aged 90-94
95-99166K / 384K3K / 8KUnited States has 4823.9% more people aged 95-99
100+18K / 59K0K / 1KUnited States has 12367.0% more people aged 100+

Frequently Asked Questions

Which has more people, USA or Iran?

The United States has more: 349.0 million vs 93.2 million in 2026 — 3.7× as many, 255.9 million more people.

Which country is older?

The United States, with a median age of 38.7 vs 34.5 in Iran (2026).

Which has higher fertility?

Iran, at 1.66 children per woman vs 1.63 in the United States. Replacement is 2.1, so both are below it.

How will USA and Iran compare in 2050?

By 2050 the UN projects the United States at 380.8 million (+9.1% from 2026) and Iran at 101.9 million (+9.3%).

Are USA and Iran growing or shrinking?

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

Explore Individual Countries

United States population pyramid→Iran population pyramid→

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