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USA vs China Size: How Do They Actually Compare?

By SimpleMapLab·Published 16 May 2026·Reviewed against CIA Factbook, UN Statistics, IMF, World Bank·CC-BY 4.0

The USA covers 3,796,742 sq mi; China covers 3,705,407 sq mi. The USA is 1.02× larger — within 3%, essentially tied. The size match is the surface; everything else differs. China has 4.22× the population, is 4× denser, has 1.23× the GDP by PPP (USA leads 1.49× by nominal), and runs one time zone across territory the USA splits into six.

China overlaid inside the USA at true equal-area scale. China covers approximately 98% of the USA — essentially tied.USA is 1.025× the size of ChinaUSA 3,796,742 sq mi · China 3,705,407 sq mi · CIA Factbook 2024USAChinasimplemaplab.com/size-comparisons/usa-vs-china · CC-BY 4.0
China overlaid inside the USA outline at true equal-area scale. China covers approximately 98% of the USA — the visible 2% gap is the genuine size difference.
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At a glance: USA vs China by the numbers

MetricUSAChinaRatio
Total area (sq mi)3,796,7423,705,4071.02× US
Land area (sq mi)3,531,9053,624,8071.03× CN
Population (2024)334,900,0001,412,000,0004.22× CN
Density (/sq mi)953814.01× CN
GDP nominal (2024)$28.8T$19.4T1.49× US
GDP PPP (2024)$28.8T$35.3T1.23× CN
Per-capita GDP$86,000$13,7006.28× US
Coastline (mi)12,3809,0101.37× CN
Highest pointDenali, 20,310 ftMount Everest (Tibet/Nepal border), 29,032 ft1.43× US
Longest riverMissouri, 2,341 miYangtze, 3,917 mi1.67× US
Time zones61 (UTC+8)—
Sub-national units50 states + DC33 province-level—
Active military1,400,0002,035,0001.45× US
Nuclear warheads (est)~5,244~50010.49× US

The size dispute: who is actually #3?

The USA and China are typically ranked the 3rd and 4th largest countries in the world (after Russia at #1 and Canada at #2). Which one ranks 3rd depends entirely on the data source and counting method.

CIA Factbook (most-cited consensus): USA 3,796,742 sq mi (9.83M km²) — #3; China 3,705,407 sq mi (9.60M km²) — #4. The USA exceeds China by 91,000 sq mi, an area approximately the size of Indiana.

UN Statistics Division: Different conventions. China sometimes ranks slightly ahead because UN data excludes the USA's share of the Great Lakes water area while including disputed Chinese territory in the South China Sea and along the Indian border.

The persistent 3% disagreement comes from three sources: (a) inland waters — the USA includes its Great Lakes share (~95,000 sq mi of water area), while China's rivers and reservoirs are smaller as a share of total area; (b) disputed territories — China claims Arunachal Pradesh (33,000 sq mi, controlled by India), Aksai Chin (15,000 sq mi, controlled by China but claimed by India), and ~1.4 million km² of South China Sea waters; (c) Taiwan — the PRC claims Taiwan (13,973 sq mi) as Chinese territory, though it's governed by the Republic of China. Whether you count claimed-but-not-controlled territory shifts the China figure by up to 80,000 sq mi.

Population: 4.22× more Chinese than Americans on the same land

The defining difference between the two countries is population density. China holds 1.412 billion people on roughly the same land area as the USA, which has 335 million. China's density (381 per sq mi) is 4.01× the USA's (95 per sq mi).

The contrast is starkest in megaregions. China's three biggest coastal economic clusters each hold populations larger than entire US states:

Combined, China's three coastal megaregions hold ~276 million people on 4.6% of China's land — about 20% of the entire country. The USA's most populous metropolitan areas (New York, Los Angeles, Chicago) total ~50 million combined. Both countries cluster population unevenly — the USA on the coasts, China on its eastern half (the Hu Huanyong Line divides China's densely-populated east from sparsely-populated west).

The economic gap: nominal vs PPP tells two stories

USA-China GDP is the most-watched economic comparison in the world. The answer depends on the measure.

Nominal GDP (market exchange rates): USA $28.78 trillion vs China $19.37 trillion (2024 IMF estimates). The USA is 1.49× larger nominally, and the gap has actually widened since 2021 as the USA grew faster than China.

PPP GDP (Purchasing Power Parity): USA $28.78T vs China $35.29T. China surpassed the USA on PPP basis around 2014. PPP adjusts for the fact that Chinese goods and services cost less when measured in USD-equivalent terms — a haircut that costs $50 in New York might cost $5 in Shanghai, so $1 of Chinese GDP “buys” more locally.

The honest interpretation: by what the two economies produce in international-traded value, the USA leads 1.49×. By what they produce in domestic-consumed value, China leads 1.23×. Both are correct for different purposes. The forecast: IMF projects China may pass the USA in nominal GDP in the 2030s; recent China slowdowns have pushed the timeline back.

Per capita, the USA dominates dramatically. USA per-capita GDP: $86,000. China: $13,700 (nominal) or $25,000 (PPP). The USA per-person is 6.3× wealthier than China on nominal basis, 3.4× wealthier on PPP. That gap closes very slowly.

One time zone vs six: China's political clock

One of the more remarkable USA-China contrasts: China uses just one time zone (China Standard Time, UTC+8) across its entire territory. The USA spans 6 time zones across a similar longitudinal range.

China's single time zone is a political choice dating to 1949, when the new PRC government unified the country's previous five zones under Beijing time. The geographic reality: China spans about 60° of longitude (from western Xinjiang at ~75°E to eastern Heilongjiang at ~135°E) — equivalent to 4 natural time zones. In far-western Kashgar, the sun rises around 10 AM in winter in official Beijing time. In eastern Mohe, it rises around 4 AM in summer. Xinjiang locals frequently use an unofficial “Xinjiang time” (UTC+6) for daily life, two hours behind Beijing.

Drawn to scale: USA next to China

Both countries rendered at the same area-per-pixel scale, side by side. The two outlines are remarkably similar in pixel area — within 3%.

Side-by-side equal-area: USA and China at the same pixel scale.USA is 1.02× China — essentially tiedUnited States3,796,742 sq miChina3,705,407 sq mi
USA rendered with standard US Albers (parallels 29.5/45.5°N); China with rotate −105°, parallels 25/47°N. Both equal-area-preserving.

What else is the size of the USA?

What else is the size of China?

12 surprising facts about USA vs China

  1. The USA is 1.025× China. Essentially tied — within 3% by total area.
  2. Some sources rank China larger. UN data has China slightly ahead; CIA Factbook has the USA ahead.
  3. China has 4.22× the USA's population. 1.412B vs 335M.
  4. China uses ONE time zone. Geographic span: 5 zones. Politically: 1.
  5. The USA leads by nominal GDP (1.49×) but China leads by PPP (1.23×). Two valid measures, opposite results.
  6. The Yangtze (3,917 mi) is 1.67× longer than the Missouri. Asia's longest river.
  7. Everest (29,032 ft) is 1.43× Denali (20,310 ft). China has 8 of the world's 14 tallest peaks; the USA has zero.
  8. The USA has 12,380 mi of coast; China 9,010. USA 1.37× more coastline, mainly because Alaska alone has 6,640 mi.
  9. India recently passed China in population. 1.43B (India) vs 1.41B (China). China is no longer the world's most populous country.
  10. Chinese provinces are 1.47× the size of US states on average. 33 vs 50 — fewer, bigger.
  11. The Pearl River Delta has 78M people on 22K sq mi. Bigger population than Germany on a quarter the land.
  12. USA + China + India + Russia = 35.7% of world land. Four countries on more than a third of Earth's land.

Methodology and sources

Area: CIA World Factbook 2024 + cross-checks against UN Statistics, Wikipedia, and Chinese government statistics. Different conventions give different ratios; we cite the CIA figure as the most widely-used international standard.

Population + GDP: IMF World Economic Outlook (October 2024), UN DESA 2024, World Bank 2024. China population from National Bureau of Statistics of China.

Projections: USA with standard US Albers (parallels 29.5/45.5°N); China with d3.geoConicEqualArea rotate −105°, parallels 25/47°N. Both equal-area-preserving. Last reviewed 16 May 2026.

Frequently asked questions

Marginally. By CIA Factbook 2024: USA 3,796,742 sq mi vs China 3,705,407 sq mi — USA is 1.025× larger, exceeding China by about 91,000 sq mi (the size of Indiana, or smaller than Wyoming). UN Statistics Division gives slightly different values that put China marginally ahead. For practical purposes the two countries are tied in area.
1.025× by CIA total area — about 91,000 sq mi. By land area only: USA 3,531,905 sq mi vs China 3,624,807 sq mi — China has more land (USA has more inland water from the Great Lakes). By every standard area measure the two countries are within 3% of each other.
Essentially yes. They are typically ranked the 3rd and 4th largest countries in the world after Russia and Canada, and are within 3% of each other on every standard area measure. The exact ranking depends on (a) whether you include the USA's Great Lakes water area, (b) how disputed Chinese territory (Arunachal Pradesh, Aksai Chin, parts of the South China Sea) is counted, and (c) whether Alaska + Hawaii are included in the US figure. Most rankings put the USA at #3 and China at #4 by total area; some put China at #3.
China has 4.22× the USA's population. China: 1.412 billion. USA: 334.9 million. China is the world's 2nd-most populous country (after India since 2023). Density: China 381 per sq mi vs USA 95 — China is 4.01× denser despite being the same area. The Pearl River Delta megaregion (~78M) is larger than California's population.
Depends on the measure. (1) Nominal GDP: USA $28.78T vs China $19.37T — USA is 1.49× larger. (2) PPP GDP (Purchasing Power Parity): USA $28.78T vs China $35.29T — China is 1.23× larger. Per-capita nominal: USA $86,000 vs China $13,700 — USA is 6.3× wealthier per person. Per-capita PPP: USA $86,000 vs China $25,000 — USA is 3.4× wealthier per person on PPP.
China passed the USA on PPP basis around 2014. By nominal GDP, China remains behind: IMF projects China may pass the USA in nominal terms in the 2030s, but recent slowdowns have pushed those forecasts back. As of 2024, the nominal gap (USA $28.8T vs China $19.4T) is actually widening as the USA grows faster.
Officially, China uses ONE time zone — China Standard Time (UTC+8) — across its entire territory. Geographically, it would span 5 time zones (from western Xinjiang at ~75°E to eastern Heilongjiang at ~135°E, about 60° of longitude). The single-time-zone policy means the sun rises around 10 AM in western Xinjiang (Kashgar) in local time, while it rises at 5 AM in eastern Heilongjiang. The USA uses 6 time zones across a similar longitudinal span.
The USA, by 1.37×. USA: 12,380 mi. China: 9,010 mi. The USA includes Alaska (6,640 mi of coastline alone — more than China's total). The USA also has Atlantic, Pacific, Gulf of Mexico, and Hawaiian island coastlines; China has only east-facing coast from Vietnam border to North Korea border. Per unit of land area, both are similar; China is slightly more compact.
China: Mount Everest (29,032 ft / 8,848 m) on the Tibet-Nepal border. USA: Denali / Mount McKinley (20,310 ft / 6,190 m) in Alaska. Everest is 1.43× the height of Denali. China has 8 of the world's 14 peaks over 8,000 m (the Himalayas + Karakoram); the USA has zero.
China: Yangtze (3,917 mi / 6,300 km) — Asia's longest river and the 3rd-longest in the world (after the Nile and Amazon). USA: Missouri (2,341 mi) is technically the USA's longest individual river. The Mississippi-Missouri system combined is 3,710 mi — still shorter than the Yangtze. China's Yellow River (3,395 mi) is also longer than any USA river.
China has 33 province-level administrative divisions: 22 provinces, 5 autonomous regions (Tibet, Xinjiang, Inner Mongolia, Guangxi, Ningxia), 4 municipalities (Beijing, Shanghai, Tianjin, Chongqing), and 2 Special Administrative Regions (Hong Kong, Macau). The USA has 50 states + DC + 5 inhabited territories. Average Chinese province ~112,000 sq mi (size of Arizona); average US state ~76,000 sq mi (size of Nebraska).
No. The USA was smaller than the late Qing Dynasty (1644-1912), which controlled large parts of Mongolia, Central Asia, and Manchuria — totaling about 5.7 million sq mi at its 1820 peak. The 1949 founding of the People's Republic of China + later boundary settlements with the USSR, India, and Burma gave modern China its current shape. The USA reached its current size in 1959 with Hawaii statehood. Russia (formerly the USSR) was much larger than either through the 20th century.
Roughly the size of all of East Asia (China + Japan + Korea + Mongolia + Taiwan ≈ 4.2 million sq mi). The USA is bigger than China alone, smaller than China + India combined, and roughly equal to all of Southeast Asia combined (the 11 ASEAN countries ≈ 1.74M sq mi × 2 = 3.48M).
Yes, persistently. The CIA Factbook gives USA #3 (3,796,742 sq mi), China #4 (3,705,407). Wikipedia lists both rankings as disputed. The discrepancy is mostly about how to count: (a) inland waters (Great Lakes for USA; rivers/reservoirs for China), (b) disputed Chinese territory (Aksai Chin, Arunachal Pradesh, parts of South China Sea), (c) whether Taiwan is counted (the PRC claims it; the ROC governs it). For practical purposes the two countries are tied to within 3%.

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Suggested citation: SimpleMapLab (2026). USA vs China Size. Retrieved from https://www.simplemaplab.com/size-comparisons/usa-vs-china. CC-BY 4.0.