The map above shows Ireland and New Brunswick side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ireland vs New Brunswick Geography
Land area: Ireland has a land area of 26,596 square miles (68,883 km²), while New Brunswick has 27,587 square miles (71,450 km²). Ireland and New Brunswick have about the same land area.
Total area: Ireland: 27,133 square miles (70,273 km²) vs New Brunswick: 28,150 square miles (72,908 km²), including inland and coastal water. Ireland and New Brunswick have about the same total area.
Length: Ireland is 287 miles (462 km) long from north to south; New Brunswick is 241 miles (388 km). Ireland's north-south length is 1.2 times (19%) longer than New Brunswick's.
Width: Ireland spans 191 miles (308 km) east to west; New Brunswick spans 264 miles (424 km). New Brunswick's east-west width is 1.4 times (38%) wider than Ireland's.
Highest point: Ireland's highest point is Carrauntoohil at 3,406 feet (1,038 m); New Brunswick's is Mount Carleton at 2,680 feet (817 m). Carrauntoohil is 726 feet higher than Mount Carleton.
Lowest point: Ireland's lowest point is Atlantic Ocean at 0 feet; New Brunswick's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Ireland vs New Brunswick Population and History
Population: Ireland has a population of 5,525,600 (2026), while New Brunswick has 867,383 (2026). Ireland's population is 6.4 times (537%) larger than New Brunswick's.
Population density: Ireland: 207.8 people per square mile vs New Brunswick: 31.4. Ireland's population density is 6.6 times (562%) higher than New Brunswick's.
Biggest city: Ireland's biggest city is Dublin with 592,713 people; New Brunswick's is Moncton with 79,470. Dublin's population is 7.5 times (646%) larger than Moncton's.
Largest metro area: Ireland's largest metropolitan area is Greater Dublin Area (2,082,605 people) vs New Brunswick's Moncton CMA (157,717). Greater Dublin Area's population is 13.2 times larger than Moncton CMA's.
History: Ireland: Independent since December 6, 1922, as the Irish Free State; a republic since 1949. New Brunswick: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, New Brunswick is the older of the two by 55 years.
Ireland vs New Brunswick Economy
GDP: Ireland's GDP is $721.7 billion (2025) vs New Brunswick's $35.3 billion. Ireland's economic output is 20.4 times larger than New Brunswick's.
GDP per capita: Ireland: $131,593 per person vs New Brunswick: $41,088. Ireland's GDP per capita is 3.2 times (220%) higher than New Brunswick's.
Official Websites
Ireland official website · New Brunswick official website
More Size Comparisons
All Ireland size comparisons · All New Brunswick 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.