The map above shows Guam and New Zealand side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Guam vs New Zealand Geography
Land area: Guam has a land area of 210 square miles (544 km²), while New Zealand has 102,138 square miles (264,537 km²). New Zealand's land area is 486.3 times larger than Guam's.
Total area: Guam: 210 square miles (544 km²) vs New Zealand: 103,799 square miles (268,838 km²), including inland and coastal water. New Zealand's total area is 494.2 times larger than Guam's.
Length: Guam is 27 miles (43 km) long from north to south; New Zealand is 1,185 miles (1,908 km). New Zealand's north-south length is 43.9 times longer than Guam's.
Width: Guam spans 22 miles (35 km) east to west; New Zealand spans 969 miles (1,559 km). New Zealand's east-west width is 44.0 times wider than Guam's.
Highest point: Guam's highest point is Mount Lamlam at 1,332 feet (406 m); New Zealand's is Aoraki / Mount Cook at 12,218 feet (3,724 m). Aoraki / Mount Cook is 10,886 feet higher than Mount Lamlam.
Lowest point: Guam's lowest point is Pacific Ocean at 0 feet; New Zealand's is Taieri Plains at -7 feet. New Zealand's lowest point is 7 feet lower.
Guam vs New Zealand Population and History
Population: Guam has a population of 153,836 (2020), while New Zealand has 5,357,300 (2026). New Zealand's population is 34.8 times larger than Guam's.
Population density: Guam: 732.6 people per square mile vs New Zealand: 52.5. Guam's population density is 14.0 times higher than New Zealand's.
History: Guam: A US territory since 1898. New Zealand: A dominion from September 26, 1907; fully independent by statute in 1947. In its current form, Guam is the older of the two by 9 years.
Official Websites
Guam official website · New Zealand official website
More Size Comparisons
All Guam 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.