The map above shows Ireland and Northern Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ireland vs Northern Ireland Geography
Land area
- Ireland has a land area of 26,596 square miles (68,883 km²), while Northern Ireland has 5,236 square miles (13,562 km²).
- Ireland's land area is 5.1 times (408%) larger than Northern Ireland's.
Total area
- Ireland: 27,133 square miles (70,273 km²) vs Northern Ireland: 5,456 square miles (14,130 km²), including inland and coastal water.
- Ireland's total area is 5.0 times (397%) larger than Northern Ireland's.
Length
- Ireland is 287 miles (462 km) long from north to south; Northern Ireland is 83 miles (134 km).
- Ireland's north-south length is 3.5 times (246%) longer than Northern Ireland's.
Width
- Ireland spans 191 miles (308 km) east to west; Northern Ireland spans 107 miles (173 km).
- Ireland's east-west width is 1.8 times (79%) wider than Northern Ireland's.
Highest point
- Ireland's highest point is Carrauntoohil at 3,406 feet (1,038 m); Northern Ireland's is Slieve Donard at 2,789 feet (850 m).
- Carrauntoohil is 617 feet higher than Slieve Donard.
Lowest point
- Ireland's lowest point is Atlantic Ocean at 0 feet; Northern Ireland's is Irish Sea at 0 feet.
- Both lowest points are at or near sea level.
Ireland vs Northern Ireland Population and History
Population
- Ireland has a population of 5,525,600 (2026), while Northern Ireland has 1,905,000 (2022).
- Ireland's population is 2.9 times (190%) larger than Northern Ireland's.
Population density
- Ireland: 207.8 people per square mile vs Northern Ireland: 363.8.
- Northern Ireland's population density is 1.8 times (75%) higher than Ireland's.
Biggest city
- Ireland's biggest city is Dublin with 592,713 people; Northern Ireland's is Belfast with 348,005.
- Dublin's population is 1.7 times (70%) larger than Belfast's.
History
- Ireland: Independent since December 6, 1922, as the Irish Free State; a republic since 1949.
- Northern Ireland: A country within the United Kingdom; created by the partition of Ireland on May 3, 1921.
- In its current form, Northern Ireland is the older of the two by 1 years.
Ireland vs Northern Ireland Economy
GDP
- Ireland's GDP is $721.7 billion (2025) vs Northern Ireland's $58.8 billion.
- Ireland's economic output is 12.3 times larger than Northern Ireland's.
GDP per capita
- Ireland: $131,593 per person vs Northern Ireland: $30,686.
- Ireland's GDP per capita is 4.3 times (329%) higher than Northern Ireland's.
Official Websites
Ireland official website · Northern Ireland official website
Download the Ireland vs Northern Ireland Size Comparison Map for free
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More Size Comparisons
All Ireland 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.