The map above shows Idaho and New Zealand side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Idaho vs New Zealand Geography
Land area: Idaho has a land area of 82,645 square miles (214,051 km²), while New Zealand has 102,138 square miles (264,537 km²). New Zealand's land area is 1.2 times (24%) larger than Idaho's.
Total area: Idaho: 83,569 square miles (216,441 km²) vs New Zealand: 103,799 square miles (268,838 km²), including inland and coastal water. New Zealand's total area is 1.2 times (24%) larger than Idaho's.
Length: Idaho is 483 miles (778 km) long from north to south; New Zealand is 1,185 miles (1,908 km). New Zealand's north-south length is 2.5 times (145%) longer than Idaho's.
Width: Idaho spans 352 miles (566 km) east to west; New Zealand spans 969 miles (1,559 km). New Zealand's east-west width is 2.8 times (175%) wider than Idaho's.
Highest point: Idaho's highest point is Borah Peak at 12,631 feet (3,850 m); New Zealand's is Aoraki / Mount Cook at 12,218 feet (3,724 m). Borah Peak is 413 feet higher than Aoraki / Mount Cook.
Lowest point: Idaho's lowest point is Snake River at 718 feet; New Zealand's is Taieri Plains at -7 feet. New Zealand's lowest point is 725 feet lower.
Idaho vs New Zealand Population and History
Population: Idaho has a population of 2,001,619 (2024), while New Zealand has 5,357,300 (2026). New Zealand's population is 2.7 times (168%) larger than Idaho's.
Population density: Idaho: 24.2 people per square mile vs New Zealand: 52.5. New Zealand's population density is 2.2 times (117%) higher than Idaho's.
Largest metro area: Idaho's largest metropolitan area is Boise City, ID metro area (845,877 people) vs New Zealand's Auckland Region (1,715,600). Auckland Region's population is 2.0 times (103%) larger than Boise City, ID metro area's.
History: Idaho: Admitted to the Union on July 3, 1890, as the 43rd state. New Zealand: A dominion from September 26, 1907; fully independent by statute in 1947. In its current form, Idaho is the older of the two by 17 years.
Idaho vs New Zealand Economy
GDP: Idaho's GDP is $129.0 billion (2024) vs New Zealand's $264.1 billion. New Zealand's economic output is 2.0 times (105%) larger than Idaho's.
GDP per capita: Idaho: $64,457 per person vs New Zealand: $49,591. Idaho's GDP per capita is 1.3 times (30%) higher than New Zealand's.
Average income: Idaho: $62,323 vs New Zealand: $46,630 average income per person (per capita personal income). Idaho's average income is 1.3 times (34%) higher than New Zealand's.
Official Websites
Idaho official website · New Zealand official website
More Size Comparisons
All Idaho 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.