United States vs Thailand: population comparison
Current population of United States
343,756,314
Live estimate, extrapolated from the latest official figures
- Births today
- 2,065
- Deaths today
- 1,753
- Change today (UTC)
- +1,018
Current population of Thailand
71,566,732
Live estimate, extrapolated from the latest official figures
- Births today
- 331
- Deaths today
- 368
- Change today (UTC)
- −27
United States has a population of 341,784,857 and Thailand has 71,619,863 (2025 estimates). United States is currently larger by 270,164,994 people — about 5 times Thailand's population. They rank 3 and 20 in the world respectively.
Their trajectories differ: United States grows at +0.52% per year versus −0.07% for Thailand. One population is expanding while the other shrinks — the gap between them widens every year.
Beyond size, the structures differ: United States is the younger society (median age 38.5 vs 40.6); Thailand is far more crowded at 140 people per km² against 37.
United States vs Thailand population, 1960–2025
Side by side
| Indicator | United States | Thailand |
|---|---|---|
| Population | 341,784,857 | 71,619,863 |
| Annual growth | +0.52% | −0.07% |
| Yearly change | +1,781,060 | −48,148 |
| Density (P/km²) | 37 | 140 |
| Land area (km²) | 9,147,420 | 510,890 |
| Median age | 38.5 yrs | 40.6 yrs |
| Fertility rate | 1.63 | 1.20 |
| Life expectancy | 78.9 yrs | 76.6 yrs |
| Urban population | 80% | 63% |
| World share | 4.16% | 0.87% |
| 2050 projection (UN) | 380,846,910 | 66,382,735 |
Latest World Bank estimates; median age and 2050 projections from UN WPP 2024. Full profiles: United States · Thailand
United States vs Thailand FAQ
Is United States bigger than Thailand by population?
United States currently has the larger population: 341,784,857 versus 71,619,863 (2025 estimates) — a gap of 270.16 million people.
Which grows faster, United States or Thailand?
United States currently grows faster: +0.52% per year versus −0.07%.
How do United States and Thailand compare in 2050?
UN medium-variant projections put United States at 380,846,910 and Thailand at 66,382,735 in 2050.