The map above shows Mexico and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mexico vs Ontario Geography
Land area: Mexico has a land area of 750,561 square miles (1,943,945 km²), while Ontario has 354,342 square miles (917,741 km²). Mexico's land area is 2.1 times (112%) larger than Ontario's.
Total area: Mexico: 758,449 square miles (1,964,375 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Mexico's total area is 1.8 times (82%) larger than Ontario's.
Length: Mexico is 1,890 miles (3,041 km) long from north to south; Ontario is 1,085 miles (1,747 km). Mexico's north-south length is 1.7 times (74%) longer than Ontario's.
Width: Mexico spans 2,021 miles (3,252 km) east to west; Ontario spans 1,013 miles (1,630 km). Mexico's east-west width is 2.0 times (100%) wider than Ontario's.
Highest point: Mexico's highest point is Pico de Orizaba at 18,491 feet (5,636 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Pico de Orizaba is 16,217 feet higher than Ishpatina Ridge.
Lowest point: Mexico's lowest point is Laguna Salada at -33 feet; Ontario's is Hudson Bay at 0 feet. Mexico's lowest point is 33 feet lower.
Mexico vs Ontario Population and History
Population: Mexico has a population of 131,231,919 (2026), while Ontario has 16,136,480 (2026). Mexico's population is 8.1 times (713%) larger than Ontario's.
Population density: Mexico: 174.8 people per square mile vs Ontario: 45.5. Mexico's population density is 3.8 times (284%) higher than Ontario's.
Biggest city: Mexico's biggest city is Mexico City with 9,209,944 people; Ontario's is Toronto with 2,794,356. Mexico City's population is 3.3 times (230%) larger than Toronto's.
Largest metro area: Mexico's largest metropolitan area is Mexico City (17,734,212 people) vs Ontario's Toronto CMA (6,202,225). Mexico City's population is 2.9 times (186%) larger than Toronto CMA's.
History: Mexico: Independent from Spain since September 27, 1821. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Mexico is the older of the two by 46 years.
Mexico vs Ontario Economy
GDP: Mexico's GDP is $1,832.6 billion (2025) vs Ontario's $873.9 billion. Mexico's economic output is 2.1 times (110%) larger than Ontario's.
GDP per capita: Mexico: $13,889 per person vs Ontario: $54,132. Ontario's GDP per capita is 3.9 times (290%) higher than Mexico's.
Official Websites
Mexico official website · Ontario official website
More Size Comparisons
All Mexico size comparisons · All Ontario size comparisons
Area, elevation and boundary figures come from official national statistics and US Census Bureau and Natural Earth boundary data; US state population, economic, county and tax figures come from the US Census Bureau, the Bureau of Economic Analysis and the Tax Foundation. Figures are rounded and for general reference.