PopulationPyramids
UN World Population Prospects Data Visualized

USA vs Nigeria: Population Comparison 2026

The United States has 106,603,663 more people than Nigeria (1.4× as many): 349.0 million vs 242.4 million in 2026. Median age is 38.7 in the United States and 18.3 in Nigeria; fertility is 1.63 vs 4.21 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%)

Nigeria

2026
0
people
Median age
18.3
Fertility (TFR)
4.21
Working age (15–64)
56.9%
Trend
Growing (+2.06%)

Population pyramids, 2026

Total Population

United States

349.0M

vs

Nigeria

242.4M

Youth (0-14)

United States

16.9%

vs

Nigeria

40.0%

Elderly (65+)

United States

18.8%

vs

Nigeria

3.1%

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 Nigeria for each age group, split by gender:

Left Side (Males)

Blue = United States has more males

Green = Nigeria has more males

Right Side (Females)

Pink = United States has more females

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

Notable Differences (>20% variance):

Ages 0-4: Nigeria has 46.2% more people
Men: 8.0M more in Nigeria • Women: 8.0M more in Nigeria
United States: 9.5M men, 9.1M women • Nigeria: 17.5M men, 17.1M women
Population Ratio
18.6M
34.6M
Ages 5-9: Nigeria has 38.9% more people
Men: 6.2M more in Nigeria • Women: 6.2M more in Nigeria
United States: 9.9M men, 9.5M women • Nigeria: 16.1M men, 15.6M women
Population Ratio
19.4M
31.7M
Ages 10-14: Nigeria has 31.6% more people
Men: 4.8M more in Nigeria • Women: 4.9M more in Nigeria
United States: 10.8M men, 10.2M women • Nigeria: 15.6M men, 15.1M women
Population Ratio
21.0M
30.6M
Ages 25-29: United States has 20.8% more people
Men: 2.2M more in United States • Women: 1.7M more in United States
United States: 11.8M men, 11.0M women • Nigeria: 9.6M men, 9.3M women
Population Ratio
22.8M
18.9M
Ages 30-34: United States has 51.6% more people
Men: 4.3M more in United States • Women: 3.7M more in United States
United States: 12.2M men, 11.3M women • Nigeria: 7.9M men, 7.6M women
Population Ratio
23.5M
15.5M
Ages 35-39: United States has 85.6% more people
Men: 5.9M more in United States • Women: 5.3M more in United States
United States: 12.6M men, 11.8M women • Nigeria: 6.7M men, 6.5M women
Population Ratio
24.3M
13.1M
Ages 40-44: United States has 103.6% more people
Men: 6.2M more in United States • Women: 5.7M more in United States
United States: 12.0M men, 11.3M women • Nigeria: 5.8M men, 5.7M women
Population Ratio
23.3M
11.5M
Ages 45-49: United States has 125.1% more people
Men: 6.3M more in United States • Women: 5.9M more in United States
United States: 11.2M men, 10.7M women • Nigeria: 4.9M men, 4.8M women
Population Ratio
21.9M
9.7M
Ages 50-54: United States has 164.3% more people
Men: 6.5M more in United States • Women: 6.1M more in United States
United States: 10.3M men, 9.9M women • Nigeria: 3.8M men, 3.8M women
Population Ratio
20.2M
7.6M
Ages 55-59: United States has 257.3% more people
Men: 7.6M more in United States • Women: 7.4M more in United States
United States: 10.5M men, 10.3M women • Nigeria: 2.9M men, 2.9M women
Population Ratio
20.8M
5.8M
Ages 60-64: United States has 377.4% more people
Men: 8.4M more in United States • Women: 8.4M more in United States
United States: 10.5M men, 10.7M women • Nigeria: 2.2M men, 2.3M women
Population Ratio
21.2M
4.4M
Ages 65-69: United States has 525.4% more people
Men: 8.3M more in United States • Women: 8.7M more in United States
United States: 9.9M men, 10.4M women • Nigeria: 1.6M men, 1.7M women
Population Ratio
20.3M
3.3M
Ages 70-74: United States has 686.7% more people
Men: 7.0M more in United States • Women: 7.8M more in United States
United States: 8.0M men, 9.0M women • Nigeria: 1.0M men, 1.1M women
Population Ratio
17.0M
2.2M
Ages 75-79: United States has 959.5% more people
Men: 5.5M more in United States • Women: 6.4M more in United States
United States: 6.0M men, 7.1M women • Nigeria: 583K men, 658K women
Population Ratio
13.2M
1.2M
Ages 80-84: United States has 1275.9% more people
Men: 3.4M more in United States • Women: 4.3M more in United States
United States: 3.6M men, 4.6M women • Nigeria: 283K men, 318K women
Population Ratio
8.3M
601K
Ages 85-89: United States has 2143.5% more people
Men: 1.7M more in United States • Women: 2.5M more in United States
United States: 1.8M men, 2.6M women • Nigeria: 89K men, 107K women
Population Ratio
4.4M
196K
Ages 90-94: United States has 5026.7% more people
Men: 678K more in United States • Women: 1.2M more in United States
United States: 694K men, 1.3M women • Nigeria: 16K men, 22K women
Population Ratio
2.0M
38K
Ages 95-99: United States has 13997.0% more people
Men: 164K more in United States • Women: 381K more in United States
United States: 166K men, 384K women • Nigeria: 1K men, 3K women
Population Ratio
550K
4K
Ages 100+: United States has 36941.3% more people
Men: 18K more in United States • Women: 59K more in United States
United States: 18K men, 59K women • Nigeria: 56 men, 152 women
Population Ratio
77K
208

Demographic comparison, 2026

IndicatorUnited StatesNigeriaDifference
Population (2026)349,035,494242,431,831United States has 106.6 million more (1.4×)
Change 2025–2026+0.5% (Growing)+2.1% (Growing)
Median age (2026)38.718.3United States older by 20.4 yrs
Total fertility rate1.63 — 0.48 below replacement4.21 — 2.10 above replacement
Fertility rate, 2030 (UN projection)1.633.82
Birth rate (per 1,000)10.531.8
Population 2050 (UN projection)380.8 million (+9.1%)359.2 million (+48.2%)
Peak populationPeaks 2100Peaks 2100

Differences by age group, 2026

AgeUnited States (M / F)Nigeria (M / F)Difference
0-49549K / 9091K17540K / 17102KNigeria has 85.9% more people aged 0-4
5-99938K / 9464K16102K / 15639KNigeria has 63.6% more people aged 5-9
10-1410774K / 10190K15573K / 15055KNigeria has 46.1% more people aged 10-14
15-1911671K / 11002K14062K / 13537KNigeria has 21.7% more people aged 15-19
20-2412122K / 11403K12091K / 11644KNigeria has 0.9% more people aged 20-24
25-2911801K / 11017K9611K / 9272KUnited States has 20.8% more people aged 25-29
30-3412170K / 11342K7896K / 7617KUnited States has 51.6% more people aged 30-34
35-3912570K / 11772K6653K / 6460KUnited States has 85.6% more people aged 35-39
40-4412004K / 11314K5799K / 5651KUnited States has 103.6% more people aged 40-44
45-4911227K / 10699K4920K / 4821KUnited States has 125.1% more people aged 45-49
50-5410280K / 9907K3829K / 3808KUnited States has 164.3% more people aged 50-54
55-5910481K / 10283K2891K / 2921KUnited States has 257.3% more people aged 55-59
60-6410548K / 10660K2175K / 2268KUnited States has 377.4% more people aged 60-64
65-699910K / 10428K1566K / 1686KUnited States has 525.4% more people aged 65-69
70-748040K / 8981K1027K / 1136KUnited States has 686.7% more people aged 70-74
75-796042K / 7108K583K / 658KUnited States has 959.5% more people aged 75-79
80-843636K / 4632K283K / 318KUnited States has 1275.9% more people aged 80-84
85-891758K / 2638K89K / 107KUnited States has 2143.5% more people aged 85-89
90-94694K / 1262K16K / 22KUnited States has 5026.7% more people aged 90-94
95-99166K / 384K1K / 3KUnited States has 13997.0% more people aged 95-99
100+18K / 59K0K / 0KUnited States has 36941.3% more people aged 100+

Frequently Asked Questions

Which has more people, USA or Nigeria?

The United States has more: 349.0 million vs 242.4 million in 2026 — 1.4× as many, 106.6 million more people.

Which country is older?

The United States, with a median age of 38.7 vs 18.3 in Nigeria (2026).

Which has higher fertility?

Nigeria, at 4.21 children per woman vs 1.63 in the United States. Replacement is 2.1, so both are compared against it.

How will USA and Nigeria compare in 2050?

By 2050 the UN projects the United States at 380.8 million (+9.1% from 2026) and Nigeria at 359.2 million (+48.2%).

Are USA and Nigeria growing or shrinking?

The United States is growing (+0.5% in 2026); Nigeria is growing (+2.1%).

Explore Individual Countries

United States population pyramid→Nigeria population pyramid→

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