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Thailand vs United States

Thailand vs United States
United States is larger; United States has more people
513,120 km² vs 9,833,517 km² · 71,619,863 vs 341,784,857

United States is 19 times larger than Thailand — 9,833,517 against 513,120 km². United States is 4.8 times more populous than Thailand — 341,784,857 against 71,619,863 people.

Side by side

Thailand United States
Capital Bangkok Washington, D.C.
Area 513,120 km² 9,833,517 km²
Population 71,619,863 (2025) 341,784,857 (2025)
Density 139.6 /km² 34.8 /km²
Currency Thai baht (THB) United States dollar (USD)
Official languages Thai English
Time zones UTC+07:00 UTC-10:00, UTC-09:00, UTC-08:00, UTC-07:00, UTC-06:00, UTC-05:00
Calling code +66 +1
Drives on the left right
Continent Asia North America
ISO codes TH / THA US / USA

Population density

Thailand is 4.0 times more densely populated than United States — 140 against 35 people per km². Density is where area and population interact, and it often reverses the impression the headline figures give — a large country with a small population can feel emptier than a small crowded one by an enormous margin.

Practical differences

  • They drive on opposite sides — Thailand on the left, United States on the right.
  • Different currencies: the Thai baht and the United States dollar.
  • United States spans 6 time zones, so "local time" there is not a single answer.
  • Different continents — Asia and North America.

Thailand

Roughly 3,200 km of coastline on two separate seas, the Andaman and the Gulf of Thailand, joined only by the narrow Kra Isthmus. The country's full ceremonial name for Bangkok, Krung Thep Mahanakhon and the rest, is the longest place name in the world at 168 letters in transliteration.

United States

Third or fourth largest country in the world depending on how China's area is counted. It spans six standard time zones across the fifty states, from UTC-10 in Hawaii to UTC-5 on the east coast. Death Valley holds the highest reliably recorded air temperature on Earth, 56.7 °C in 1913, and is 86 m below sea level; Denali, 5,500 km away in Alaska, is 6,190 m.

Neutral facts only. Nothing here addresses politics, government, economics or which country is preferable in any respect — population is the one figure that dates, and it carries its year.

Common questions

Is Thailand bigger than United States?
United States is larger — 9,833,517 km² against 513,120 km².
Which has more people, Thailand or United States?
United States, with 341,784,857 against 71,619,863.
What is the time difference between Thailand and United States?
Thailand is UTC+07:00 and United States is UTC-10:00, UTC-09:00, UTC-08:00, UTC-07:00, UTC-06:00, UTC-05:00. Daylight saving shifts the gap during the year in places that observe it.

Related pages

Sources

  1. The World Factbook — Central Intelligence Agency (Public domain (US Government))
  2. World Bank Open Data — The World Bank (CC BY 4.0)

How these figures are compiled and checked