The map above shows New Brunswick and Northern Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Brunswick vs Northern Ireland Geography
Land area: New Brunswick has a land area of 27,587 square miles (71,450 km²), while Northern Ireland has 5,236 square miles (13,562 km²). New Brunswick's land area is 5.3 times (427%) larger than Northern Ireland's.
Total area: New Brunswick: 28,150 square miles (72,908 km²) vs Northern Ireland: 5,456 square miles (14,130 km²), including inland and coastal water. New Brunswick's total area is 5.2 times (416%) larger than Northern Ireland's.
Length: New Brunswick is 241 miles (388 km) long from north to south; Northern Ireland is 83 miles (134 km). New Brunswick's north-south length is 2.9 times (190%) longer than Northern Ireland's.
Width: New Brunswick spans 264 miles (424 km) east to west; Northern Ireland spans 107 miles (173 km). New Brunswick's east-west width is 2.5 times (147%) wider than Northern Ireland's.
Highest point: New Brunswick's highest point is Mount Carleton at 2,680 feet (817 m); Northern Ireland's is Slieve Donard at 2,789 feet (850 m). Slieve Donard is 109 feet higher than Mount Carleton.
Lowest point: New Brunswick'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.
New Brunswick vs Northern Ireland Population and History
Population: New Brunswick has a population of 867,383 (2026), while Northern Ireland has 1,905,000 (2022). Northern Ireland's population is 2.2 times (120%) larger than New Brunswick's.
Population density: New Brunswick: 31.4 people per square mile vs Northern Ireland: 363.8. Northern Ireland's population density is 11.6 times higher than New Brunswick's.
Biggest city: New Brunswick's biggest city is Moncton with 79,470 people; Northern Ireland's is Belfast with 348,005. Belfast's population is 4.4 times (338%) larger than Moncton's.
History: New Brunswick: Joined Confederation on July 1, 1867, as one of the four founding provinces. Northern Ireland: A country within the United Kingdom; created by the partition of Ireland on May 3, 1921. In its current form, New Brunswick is the older of the two by 54 years.
New Brunswick vs Northern Ireland Economy
GDP: New Brunswick's GDP is $35.3 billion (2024) vs Northern Ireland's $58.8 billion. Northern Ireland's economic output is 1.7 times (67%) larger than New Brunswick's.
GDP per capita: New Brunswick: $41,088 per person vs Northern Ireland: $30,686. New Brunswick's GDP per capita is 1.3 times (34%) higher than Northern Ireland's.
Official Websites
New Brunswick official website · Northern Ireland official website
More Size Comparisons
All New Brunswick 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.