The map above shows New Jersey and New Zealand side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Jersey vs New Zealand Geography
Land area: New Jersey has a land area of 7,355 square miles (19,049 km²), while New Zealand has 102,138 square miles (264,537 km²). New Zealand's land area is 13.9 times larger than New Jersey's.
Total area: New Jersey: 8,719 square miles (22,583 km²) vs New Zealand: 103,799 square miles (268,838 km²), including inland and coastal water. New Zealand's total area is 11.9 times larger than New Jersey's.
Length: New Jersey is 169 miles (271 km) long from north to south; New Zealand is 1,185 miles (1,908 km). New Zealand's north-south length is 7.0 times (601%) longer than New Jersey's.
Width: New Jersey spans 129 miles (207 km) east to west; New Zealand spans 969 miles (1,559 km). New Zealand's east-west width is 7.5 times (651%) wider than New Jersey's.
Highest point: New Jersey's highest point is High Point at 1,798 feet (548 m); New Zealand's is Aoraki / Mount Cook at 12,218 feet (3,724 m). Aoraki / Mount Cook is 10,420 feet higher than High Point.
Lowest point: New Jersey's lowest point is Atlantic Ocean at 0 feet; New Zealand's is Taieri Plains at -7 feet. New Zealand's lowest point is 7 feet lower.
New Jersey vs New Zealand Population and History
Population: New Jersey has a population of 9,500,851 (2024), while New Zealand has 5,357,300 (2026). New Jersey's population is 1.8 times (77%) larger than New Zealand's.
Population density: New Jersey: 1,291.8 people per square mile vs New Zealand: 52.5. New Jersey's population density is 24.6 times higher than New Zealand's.
Largest metro area: New Jersey's largest metropolitan area is New York-Newark-Jersey City, NY-NJ metro area (19,940,274 people) vs New Zealand's Auckland Region (1,715,600). New York-Newark-Jersey City, NY-NJ metro area's population is 11.6 times larger than Auckland Region's.
History: New Jersey: Admitted to the Union on December 18, 1787, as the 3rd state. New Zealand: A dominion from September 26, 1907; fully independent by statute in 1947. In its current form, New Jersey is the older of the two by 120 years.
New Jersey vs New Zealand Economy
GDP: New Jersey's GDP is $846.0 billion (2024) vs New Zealand's $264.1 billion. New Jersey's economic output is 3.2 times (220%) larger than New Zealand's.
GDP per capita: New Jersey: $89,045 per person vs New Zealand: $49,591. New Jersey's GDP per capita is 1.8 times (80%) higher than New Zealand's.
Average income: New Jersey: $84,893 vs New Zealand: $46,630 average income per person (per capita personal income). New Jersey's average income is 1.8 times (82%) higher than New Zealand's.
Official Websites
New Jersey official website · New Zealand official website
More Size Comparisons
All New Jersey size comparisons · All New Zealand 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.