The map above shows Mexico and Northern Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mexico vs Northern Ireland Geography
Land area: Mexico has a land area of 750,561 square miles (1,943,945 km²), while Northern Ireland has 5,236 square miles (13,562 km²). Mexico's land area is 143.3 times larger than Northern Ireland's.
Total area: Mexico: 758,449 square miles (1,964,375 km²) vs Northern Ireland: 5,456 square miles (14,130 km²), including inland and coastal water. Mexico's total area is 139.0 times larger than Northern Ireland's.
Length: Mexico is 1,890 miles (3,041 km) long from north to south; Northern Ireland is 83 miles (134 km). Mexico's north-south length is 22.8 times longer than Northern Ireland's.
Width: Mexico spans 2,021 miles (3,252 km) east to west; Northern Ireland spans 107 miles (173 km). Mexico's east-west width is 18.9 times wider than Northern Ireland's.
Highest point: Mexico's highest point is Pico de Orizaba at 18,491 feet (5,636 m); Northern Ireland's is Slieve Donard at 2,789 feet (850 m). Pico de Orizaba is 15,702 feet higher than Slieve Donard.
Lowest point: Mexico's lowest point is Laguna Salada at -33 feet; Northern Ireland's is Irish Sea at 0 feet. Mexico's lowest point is 33 feet lower.
Mexico vs Northern Ireland Population and History
Population: Mexico has a population of 131,231,919 (2026), while Northern Ireland has 1,905,000 (2022). Mexico's population is 68.9 times larger than Northern Ireland's.
Population density: Mexico: 174.8 people per square mile vs Northern Ireland: 363.8. Northern Ireland's population density is 2.1 times (108%) higher than Mexico's.
Biggest city: Mexico's biggest city is Mexico City with 9,209,944 people; Northern Ireland's is Belfast with 348,005. Mexico City's population is 26.5 times larger than Belfast's.
History: Mexico: Independent from Spain since September 27, 1821. Northern Ireland: A country within the United Kingdom; created by the partition of Ireland on May 3, 1921. In its current form, Mexico is the older of the two by 100 years.
Mexico vs Northern Ireland Economy
GDP: Mexico's GDP is $1,832.6 billion (2025) vs Northern Ireland's $58.8 billion. Mexico's economic output is 31.2 times larger than Northern Ireland's.
GDP per capita: Mexico: $13,889 per person vs Northern Ireland: $30,686. Northern Ireland's GDP per capita is 2.2 times (121%) higher than Mexico's.
Official Websites
Mexico official website · Northern Ireland official website
More Size Comparisons
All Mexico size comparisons · All Northern Ireland 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.