USA vs Indonesia: Population Comparison 2026
USA
IndonesiaThe United States has 61,148,711 more people than Indonesia (1.2× as many): 349.0 million vs 287.9 million in 2026. Median age is 38.7 in the United States and 30.7 in Indonesia; fertility is 1.63 vs 2.08 children per woman.
United States
2026- Median age
- 38.7
- Fertility (TFR)
- 1.63
- Working age (15–64)
- 64.3%
- Trend
- Growing (+0.51%)
Indonesia
2026- Median age
- 30.7
- Fertility (TFR)
- 2.08
- Working age (15–64)
- 68.3%
- Trend
- Growing (+0.76%)
Population pyramids, 2026
Total Population
United States
349.0M
Indonesia
287.9M
Youth (0-14)
United States
16.9%
Indonesia
23.9%
Elderly (65+)
United States
18.8%
Indonesia
7.8%
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 Indonesia for each age group, split by gender:
Left Side (Males)
Blue = United States has more males
Green = Indonesia has more males
Right Side (Females)
Pink = United States has more females
Orange = Indonesia 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 Indonesia has more males in that age group.
Notable Differences (>20% variance):
Demographic comparison, 2026
| Indicator | United States | Indonesia | Difference |
|---|---|---|---|
| Population (2026) | 349,035,494 | 287,886,783 | United States has 61.1 million more (1.2×) |
| Change 2025–2026 | +0.5% (Growing) | +0.8% (Growing) | |
| Median age (2026) | 38.7 | 30.7 | United States older by 8.1 yrs |
| Total fertility rate | 1.63 — 0.48 below replacement | 2.08 — 0.02 below replacement | |
| Fertility rate, 2030 (UN projection) | 1.63 | 2.01 | |
| Birth rate (per 1,000) | 10.5 | 15.4 | |
| Population 2050 (UN projection) | 380.8 million (+9.1%) | 320.7 million (+11.4%) | |
| Peak population | Peaks 2100 | Peaks 2058 |
Differences by age group, 2026
| Age | United States (M / F) | Indonesia (M / F) | Difference |
|---|---|---|---|
| 0-4 | 9549K / 9091K | 11291K / 10687K | Indonesia has 17.9% more people aged 0-4 |
| 5-9 | 9938K / 9464K | 11594K / 10993K | Indonesia has 16.4% more people aged 5-9 |
| 10-14 | 10774K / 10190K | 12386K / 11758K | Indonesia has 15.2% more people aged 10-14 |
| 15-19 | 11671K / 11002K | 12197K / 11589K | Indonesia has 4.9% more people aged 15-19 |
| 20-24 | 12122K / 11403K | 11396K / 10838K | United States has 5.8% more people aged 20-24 |
| 25-29 | 11801K / 11017K | 11246K / 10729K | United States has 3.8% more people aged 25-29 |
| 30-34 | 12170K / 11342K | 10950K / 10454K | United States has 9.8% more people aged 30-34 |
| 35-39 | 12570K / 11772K | 10603K / 10150K | United States has 17.3% more people aged 35-39 |
| 40-44 | 12004K / 11314K | 10587K / 10225K | United States has 12.0% more people aged 40-44 |
| 45-49 | 11227K / 10699K | 9921K / 9746K | United States has 11.5% more people aged 45-49 |
| 50-54 | 10280K / 9907K | 8855K / 8887K | United States has 13.8% more people aged 50-54 |
| 55-59 | 10481K / 10283K | 7683K / 7924K | United States has 33.0% more people aged 55-59 |
| 60-64 | 10548K / 10660K | 6130K / 6587K | United States has 66.8% more people aged 60-64 |
| 65-69 | 9910K / 10428K | 4419K / 5062K | United States has 114.5% more people aged 65-69 |
| 70-74 | 8040K / 8981K | 2758K / 3463K | United States has 173.6% more people aged 70-74 |
| 75-79 | 6042K / 7108K | 1475K / 2124K | United States has 265.4% more people aged 75-79 |
| 80-84 | 3636K / 4632K | 753K / 1296K | United States has 303.5% more people aged 80-84 |
| 85-89 | 1758K / 2638K | 292K / 582K | United States has 403.2% more people aged 85-89 |
| 90-94 | 694K / 1262K | 67K / 160K | United States has 765.2% more people aged 90-94 |
| 95-99 | 166K / 384K | 8K / 23K | United States has 1687.2% more people aged 95-99 |
| 100+ | 18K / 59K | 0K / 2K | United States has 3900.3% more people aged 100+ |
Frequently Asked Questions
Which has more people, USA or Indonesia?
The United States has more: 349.0 million vs 287.9 million in 2026 — 1.2× as many, 61.1 million more people.
Which country is older?
The United States, with a median age of 38.7 vs 30.7 in Indonesia (2026).
Which has higher fertility?
Indonesia, at 2.08 children per woman vs 1.63 in the United States. Replacement is 2.1, so both are below it.
How will USA and Indonesia compare in 2050?
By 2050 the UN projects the United States at 380.8 million (+9.1% from 2026) and Indonesia at 320.7 million (+11.4%).
Are USA and Indonesia growing or shrinking?
The United States is growing (+0.5% in 2026); Indonesia is growing (+0.8%).
