Mexico vs USA Size: How Much Bigger Is the United States?

By SimpleMapLab·Published 15 May 2026·Reviewed against CIA World Factbook + UN Statistics Division·CC-BY 4.0

The United States covers 3,796,742 sq mi(9.83 million km²) — the world's 3rd-largest country by total area. Mexico covers 758,449 sq mi (1.96 million km²) — the 13th-largest. The USA is 5.01× larger: five Mexicos fit inside the USA. But the bigger story is historical: until 1848, Mexico was nearly twice its current size, and roughly 555,000 sq miof today's American Southwest — California, Nevada, Utah, most of Arizona, half of New Mexico, parts of Colorado and Wyoming — was Mexican territory.

Five Mexicos packed inside the contiguous-48 outline at true equal-area scale. The declared US area includes Alaska + Hawaii (3,796,742 sq mi total); the visible outline is the lower-48 (78% of US land), the iconic recognizable USA silhouette. Pixel ratio is honest — five Mexicos by area equal the displayed outline.

Check this for yourself

Drag Mexico across the United States in the interactive tool

Mercator-aware overlay tool — pick up Mexico, drop it anywhere on the US, see true area at every latitude.

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At a glance: Mexico vs the USA by the numbers

Metric	USA	Mexico	Ratio
Total area (sq mi)	3,796,742	758,449	5.01× US
Land area (sq mi)	3,531,905	750,561	4.71× US
Country area rank	#3 (world)	#13 (world)	—
Population (2024)	334,900,000	129,400,000	2.59× US
Density (/sq mi)	95	170	1.79× MX
GDP (2024, nominal)	$28.8T	$1.9T	15.56× US
Coastline (mi)	12,380	5,797	2.14× US
Highest point (ft)	20,310 (Denali)	18,491 (Pico de Orizaba)	—
Time zones	6	4	—
Land borders	2 (Canada, Mexico)	3 (USA, Guatemala, Belize)	—

How much bigger is the USA than Mexico?

The USA is 5.01 times larger than Mexico by total area — 3,038,293 more square miles. That difference alone is larger than the country of Australia (2.97 million sq mi) and roughly the size of India and Argentina combined. Five Mexicos plus 1% extra fit inside the USA.

By land area only (excluding inland water bodies), the ratio is 4.71×— slightly closer because the USA has more inland water relative to its total area (Great Lakes, Mississippi/Missouri river systems, the Florida Everglades). Mexico's inland water is just 1% of its total area; the USA's is 7%.

Mexico is bigger than people think — the 13th-largest country

Mexico ranks #13 in the world by area, between Saudi Arabia (#12, 830,000 sq mi) and Indonesia (#14, 735,358 sq mi). To put that in European terms: Mexico is bigger than any single country in Europe except Russia. It's larger than Spain + Germany + the UK combined (737,000 sq mi). And it's roughly 3× the size of France (248,573 sq mi).

The misperception runs the other way too. Most Americans don't realize Mexico is the 5th-largest country in Latin America (after Brazil, Argentina, Peru, and Colombia) but the 2nd most populousafter Brazil. Mexico's 129 million people on 758,000 sq mi gives a population density (170/sq mi) similar to Italy's.

The 1848 inheritance: 555,000 sq mi of the USA was once Mexican

Today's map hides one of the largest peacetime territorial transfers in modern history. Two events between 1848 and 1853 moved ~555,000 sq mi from Mexican sovereignty to US sovereignty — an area bigger than Alaska and 73% as large as today's entire Mexico.

First came the Treaty of Guadalupe Hidalgo (February 2, 1848), which ended the Mexican-American War. Mexico ceded 525,000 sq mi for $15 million ($530 million in 2026 dollars) plus the assumption of $3.25 million in Mexican debts owed to US citizens. The ceded territory included all of present-day California, Nevada, Utah, most of Arizona, New Mexico, and parts of Colorado and Wyoming.

Five years later, the Gadsden Purchase (December 30, 1853) transferred an additional 29,670 sq mi of southern Arizona and southern New Mexico for $10 million. This was peaceful — the US wanted the land for a southern transcontinental railroad route. The Gadsden Purchase set the present-day US- Mexico border.

Texas, separately, was Mexican territory until its 1836 independence (Republic of Texas, 1836–1845) and US annexation in 1845. The Texas dispute over the southern border (Mexico claimed the Nueces River; the US claimed the Rio Grande) was the spark that triggered the Mexican-American War.

The cumulative effect: pre-1836 Mexico was approximately 1,700,000 sq mi — almost 2.25× larger than today, and bigger than India. Modern Mexico is what remained after Texas independence + the 1848 Cession + the 1853 Gadsden Purchase.

Drawn to scale: USA next to Mexico

Both countries rendered at the same area-per-pixel scale, side by side. The USA outline is the lower-48 mainland (with Alaska and Hawaii accounting for the remaining 22% of US land, not pictured at this scale). Mexico is shown in its own natural shape — long, with the Baja California peninsula and the Yucatán arching east.

USA and Mexico at equal area scale. USA rendered with standard US Albers Equal-Area Conic (parallels 29.5°N + 45.5°N); Mexico with parallels 18°N + 30°N tuned to its latitude band. Sources: CIA World Factbook 2024, UN Statistics Division 2024.

Population: USA has 2.6× more people on 5× more land

The population gap is smaller than the land gap — which means Mexico is denser. The USA has approximately 334,900,000 people (2024 estimate); Mexico has approximately 129,400,000. That's a 2.59× population ratio on a 5.01× area ratio — Mexico is 1.79× denser(170 people per sq mi vs the USA's 95).

Both populations cluster regionally. The USA's heavy concentrations are the Northeast Corridor (Boston-DC), California coast, Florida, and the Midwest, with most of the Mountain West and Alaska virtually empty. Mexico's population is centered on Mexico City's metropolitan area (22 million, larger than Texas) plus the Bajío and Pacific coast.

The economic gap is much wider than either area or population would suggest. US GDP (2024): $28.8 trillion. Mexico: $1.85 trillion. The USA produces 15.56× more output despite only 2.6× more people. On a per-capita basis: ~$86,000 (USA) vs ~$14,300 (Mexico).

What else is the size of the USA? Country-equivalents

The USA (3,796,742 sq mi) is approximately the size of:

China (3,705,407 sq mi) — within 2.5%, often cited as “basically tied”
Canada × 0.98 — virtually identical in area
Brazil × 1.15
Australia × 1.28
Mexico × 5.01 (the comparison on this page)
Europe (geographic continent) × 0.97 — slightly smaller than Europe including European Russia

What else is the size of Mexico? Country-equivalents

Mexico (758,449 sq mi) is approximately the size of:

Indonesia × 1.03 — within 3%
Saudi Arabia × 0.91
Iran × 1.19 (Iran is 636,372 sq mi)
Greenland × 0.91 (Greenland is 836,109 sq mi)
Texas + California + Arizona + New Mexico combined ≈ 0.92× Mexico (~698,000 sq mi)
Spain × 1.50, or 3× France, or 2× Egypt

10 surprising facts about Mexico vs the USA

The USA is exactly 5.01× Mexico. Almost a clean integer — 5 Mexicos plus 1% fit inside the United States.
Mexico ranks #13 in the world by area. Between Saudi Arabia (#12) and Indonesia (#14).
Pre-1848 Mexico was 73% larger than today. Modern Mexico is ~758,000 sq mi; pre-1848 Mexico was ~1,313,000 sq mi.
555,000 sq mi of the USA was once Mexican. Bigger than Alaska — 14.6% of today's USA.
The Mexican Cession (1848) was the largest single peaceful territorial transfer in US history. 525,000 sq mi for $15 million — about $0.05 per acre in 1848 dollars.
Mexico is denser than the USA. 170 vs 95 people per sq mi — Mexico is 1.79× denser despite the USA having 2.6× more people.
Mexico City sits at 7,350 ft elevation. Highest major capital city in North America; air is thin enough that planes need extra runway.
Mexico has 2 peaks over 17,000 ft. Pico de Orizaba (18,491 ft) and Popocatépetl (17,802 ft). The USA has just one peak that tall: Denali (20,310 ft) in Alaska. In the lower 48, the tallest is Mt. Whitney at 14,505 ft.
The US-Mexico border is 1,933 miles long. 8th-longest international border in the world. The Rio Grande forms 1,254 of those miles.
Mexico has 2,000 miles of coastline on the Sea of Cortez alone. One of the most biodiverse seas on Earth, sometimes called “the world's aquarium.” Plus 5,797 mi of general coastline ranking #11 globally.

Methodology and sources

Country area:CIA World Factbook 2024. UN Statistics Division 2024 gives slightly different totals for the USA (9,629,091 km² vs CIA's 9,833,520 km²) — the discrepancy is typically inland-water and Great Lakes treatment. Both agree on Mexico's 1,964,375 km².

Visualisation:USA outline rendered as the lower-48 mainland (the largest sub-polygon of the US country MultiPolygon — Alaska and Hawaii are 22% of US land area but not pictured at this scale). Container area declared as full USA total (3,796,742 sq mi); pixel area is calibrated so 5 Mexicos by area equal the displayed lower-48 outline. This is mathematically equivalent to: “If the USA's 22% AK+HI land mass were folded into the lower-48 outline, the resulting shape would equal 5 Mexicos.”

Population: UN Department of Economic and Social Affairs (UN DESA), World Population Prospects 2024 mid-year estimates.

GDP: IMF World Economic Outlook (October 2024), nominal USD.

Historical territory: Treaty of Guadalupe Hidalgo (1848), Gadsden Purchase (1853) per US National Archives. The 525,000 sq mi figure for the Mexican Cession is the commonly cited approximation; some sources give 529,000 sq mi depending on how Texas claims are accounted for.

Projections: USA rendered with d3.geoConicEqualArea, rotate 96°, parallels 29.5/45.5°N (standard US Albers). Mexico with rotate 102°, parallels 18/30°N tuned to its latitude band. Both equal-area-preserving. Last reviewed 15 May 2026.

Frequently asked questions

Yes, by a huge margin. The United States covers 3,796,742 sq mi (9,833,520 km²), making it 5.01 times larger than Mexico's 758,449 sq mi (1,964,375 km²). The USA is the world's 3rd-largest country by area; Mexico ranks 13th. Five Mexicos fit inside the United States with a tiny remainder (0.01×).

The USA is 5.01× larger than Mexico by total area — about 3.04 million sq mi (7.87 million km²) larger in absolute terms. That difference alone is bigger than Australia (2.97 million sq mi). By land area only (excluding inland water and territorial waters), the ratio is 4.71×.

Almost exactly 5. The ratio is 5.01, so five Mexicos plus 1% extra fit inside the United States. Each "Mexico" in the visualization is the country at true equal-area scale; five of them stacked exactly equal the lower-48 outline shown (which is 78% of the total US land area — Alaska and Hawaii make up the rest).

Pre-1848 Mexico was approximately 1,313,000 sq mi — about 73% larger than today's Mexico. The Treaty of Guadalupe Hidalgo (1848) transferred 525,000 sq mi to the United States, and the 1853 Gadsden Purchase added another 29,670 sq mi to the US. Together: 554,670 sq mi — an area larger than Alaska, and 73% of today's entire Mexico — went from Mexican territory to US territory in just five years.

Roughly 14.6% of today's USA was Mexican territory before 1848. The Mexican Cession (1848) included all of present-day California, Nevada, and Utah, most of Arizona and New Mexico, the western half of Colorado, and southwestern Wyoming — about 525,000 sq mi. The Gadsden Purchase (1853) added southern Arizona and New Mexico for $10 million. Texas, separately, was Mexican until its independence in 1836 and US annexation in 1845.

Eight US states have territory that was once Mexican: California, Nevada, Utah, Arizona, New Mexico, Colorado (western portion), Wyoming (southwestern portion), and Texas (the entire state, before its 1836 independence). The post-1848 transfers came via the Treaty of Guadalupe Hidalgo and the 1853 Gadsden Purchase; Texas was separately annexed by the US in 1845 after nine years as the Republic of Texas.

The USA has approximately 334.9 million people (2024); Mexico has approximately 129.4 million. The USA has 2.59× Mexico's population on 5.01× the land, giving Mexico the higher population density: 170 people per sq mi vs 95 in the USA — Mexico is 1.79× denser. Both rank in the world's top 15 most populous countries (USA #3, Mexico #10).

Mexico is the 5th-largest country in Latin America by area, behind Brazil (3,287,956 sq mi), Argentina (1,073,500), Peru (496,225), and Colombia (440,831). However, Mexico is the 2nd-most populous Latin American country after Brazil. Mexico is bigger than Spain (504,645 sq mi) and Germany (137,847 sq mi) combined, and roughly the size of all of Western Europe minus France and Spain.

Mexico (758,449 sq mi) is approximately the size of Indonesia (735,358), Saudi Arabia × 0.91 (Saudi is 830,000), or Iran × 1.19. By a more recognizable framing, Mexico is roughly equal to Texas + California + Arizona + New Mexico combined (~698,000 sq mi together — within 8% of Mexico's area).

The USA has 12,380 miles of general coastline; Mexico has 5,797 miles. The USA has 2.14× Mexico's coastline. Both rank in the world's top 15 by coastline length — USA at #8 and Mexico at #11. Mexico's coast is split between the Pacific (Baja California, Sea of Cortez) and the Atlantic side via the Gulf of Mexico + Caribbean Sea.

Mexico is denser by 1.79×: 170 people per sq mi vs the USA's 95 per sq mi. The USA's vast inland areas (Alaska, Western mountain states, Great Plains) drag its density way down. Mexico's terrain is also mountainous, but its population is more uniformly distributed in the central plateau and coasts. Both are well below dense countries like Bangladesh (3,277/sq mi) or South Korea (1,375/sq mi).

Related size comparisons

Open Mexico + USA in the interactive Country Size Comparison tool — drag either country anywhere on the world map at true area scale.
Russia vs Canada size comparison — the world's two largest countries: Russia is 1.71× Canada.
Alaska vs Lower 48 size comparison — the contiguous US is 5.18× Alaska; closes the loop on US territorial geography.
Texas vs California size comparison — two of the four states carved out of pre-1848 Mexican territory (along with Arizona, New Mexico).
Alaska vs California size comparison — Alaska is 3.66× California; California was Mexican until 1848.
Mexico vs Texas size comparison — Mexico is 2.82× Texas; the direct counterpart since Texas was Mexican until 1836.
Saudi Arabia vs Texas size comparison — Saudi is 3.09× Texas; the oil-giant matchup.
Texas vs France size comparison — Texas is 1.08× France; another state-vs-country parity comparison.
All size comparisons — full library of state-vs-state and country-vs-country area comparisons.

Suggested citation: SimpleMapLab (2026). Mexico vs USA Size: How Much Bigger Is the United States? Part of the SimpleMapLab Size Comparisons series. Retrieved from https://www.simplemaplab.com/size-comparisons/mexico-vs-usa. Licensed under CC-BY 4.0.