The map above shows New Jersey and Northern Ireland side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Jersey vs Northern Ireland Geography
Land area
- New Jersey has a land area of 7,355 square miles (19,049 km²), while Northern Ireland has 5,236 square miles (13,562 km²).
- New Jersey's land area is 1.4 times (40%) larger than Northern Ireland's.
Total area
- New Jersey: 8,719 square miles (22,583 km²) vs Northern Ireland: 5,456 square miles (14,130 km²), including inland and coastal water.
- New Jersey's total area is 1.6 times (60%) larger than Northern Ireland's.
Length
- New Jersey is 169 miles (271 km) long from north to south; Northern Ireland is 83 miles (134 km).
- New Jersey's north-south length is 2.0 times (104%) longer than Northern Ireland's.
Width
- New Jersey spans 129 miles (207 km) east to west; Northern Ireland spans 107 miles (173 km).
- New Jersey's east-west width is 1.2 times (21%) wider than Northern Ireland's.
Highest point
- New Jersey's highest point is High Point at 1,798 feet (548 m); Northern Ireland's is Slieve Donard at 2,789 feet (850 m).
- Slieve Donard is 991 feet higher than High Point.
Lowest point
- New Jersey'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 Jersey vs Northern Ireland Population and History
Population
- New Jersey has a population of 9,500,851 (2024), while Northern Ireland has 1,905,000 (2022).
- New Jersey's population is 5.0 times (399%) larger than Northern Ireland's.
Population density
- New Jersey: 1,291.8 people per square mile vs Northern Ireland: 363.8.
- New Jersey's population density is 3.6 times (255%) higher than Northern Ireland's.
Biggest city
- New Jersey's biggest city is Newark with 317,303 people; Northern Ireland's is Belfast with 348,005.
- Belfast's population is 1.1 times (10%) larger than Newark's.
History
- New Jersey: Admitted to the Union on December 18, 1787, as the 3rd state.
- Northern Ireland: A country within the United Kingdom; created by the partition of Ireland on May 3, 1921.
- In its current form, New Jersey is the older of the two by 134 years.
New Jersey vs Northern Ireland Economy
GDP
- New Jersey's GDP is $846.0 billion (2024) vs Northern Ireland's $58.8 billion.
- New Jersey's economic output is 14.4 times larger than Northern Ireland's.
GDP per capita
- New Jersey: $89,045 per person vs Northern Ireland: $30,686.
- New Jersey's GDP per capita is 2.9 times (190%) higher than Northern Ireland's.
Official Websites
New Jersey official website · Northern Ireland official website
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More Size Comparisons
All New Jersey 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.