The map above shows Maine and Northern Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs Northern Ireland Geography
Land area: Maine has a land area of 30,845 square miles (79,888 km²), while Northern Ireland has 5,236 square miles (13,562 km²). Maine's land area is 5.9 times (489%) larger than Northern Ireland's.
Total area: Maine: 35,380 square miles (91,634 km²) vs Northern Ireland: 5,456 square miles (14,130 km²), including inland and coastal water. Maine's total area is 6.5 times (549%) larger than Northern Ireland's.
Length: Maine is 311 miles (501 km) long from north to south; Northern Ireland is 83 miles (134 km). Maine's north-south length is 3.7 times (275%) longer than Northern Ireland's.
Width: Maine spans 203 miles (327 km) east to west; Northern Ireland spans 107 miles (173 km). Maine's east-west width is 1.9 times (90%) wider than Northern Ireland's.
Highest point: Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); Northern Ireland's is Slieve Donard at 2,789 feet (850 m). Mount Katahdin is 2,464 feet higher than Slieve Donard.
Lowest point: Maine'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.
Maine vs Northern Ireland Population and History
Population: Maine has a population of 1,405,012 (2024), while Northern Ireland has 1,905,000 (2022). Northern Ireland's population is 1.4 times (36%) larger than Maine's.
Population density: Maine: 45.6 people per square mile vs Northern Ireland: 363.8. Northern Ireland's population density is 8.0 times (698%) higher than Maine's.
Biggest city: Maine's biggest city is Portland with 69,568 people; Northern Ireland's is Belfast with 348,005. Belfast's population is 5.0 times (400%) larger than Portland's.
History: Maine: Admitted to the Union on March 15, 1820, as the 23rd state. Northern Ireland: A country within the United Kingdom; created by the partition of Ireland on May 3, 1921. In its current form, Maine is the older of the two by 101 years.
Maine vs Northern Ireland Economy
GDP: Maine's GDP is $99.2 billion (2024) vs Northern Ireland's $58.8 billion. Maine's economic output is 1.7 times (69%) larger than Northern Ireland's.
GDP per capita: Maine: $70,586 per person vs Northern Ireland: $30,686. Maine's GDP per capita is 2.3 times (130%) higher than Northern Ireland's.
Official Websites
Maine official website · Northern Ireland official website
More Size Comparisons
All Maine 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.