The map above shows Guam and Spain side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Guam vs Spain Geography
Land area: Guam has a land area of 210 square miles (544 km²), while Spain has 192,657 square miles (498,980 km²). Spain's land area is 917.2 times larger than Guam's.
Total area: Guam: 210 square miles (544 km²) vs Spain: 195,364 square miles (505,990 km²), including inland and coastal water. Spain's total area is 930.1 times larger than Guam's.
Length: Guam is 27 miles (43 km) long from north to south; Spain is 546 miles (879 km). Spain's north-south length is 20.2 times longer than Guam's.
Width: Guam spans 22 miles (35 km) east to west; Spain spans 697 miles (1,122 km). Spain's east-west width is 31.7 times wider than Guam's.
Highest point: Guam's highest point is Mount Lamlam at 1,332 feet (406 m); Spain's is Teide (Tenerife) at 12,188 feet (3,715 m). Teide (Tenerife) is 10,856 feet higher than Mount Lamlam.
Lowest point: Guam's lowest point is Pacific Ocean at 0 feet; Spain's is Atlantic Ocean at 0 feet. Both lowest points are at or near sea level.
Guam vs Spain Population and History
Population: Guam has a population of 153,836 (2020), while Spain has 49,801,559 (2026). Spain's population is 323.7 times larger than Guam's.
Population density: Guam: 732.6 people per square mile vs Spain: 258.5. Guam's population density is 2.8 times (183%) higher than Spain's.
History: Guam: A US territory since 1898. Spain: A unified kingdom since 1479; the current constitution dates from 1978. In its current form, Spain is the older of the two by 419 years.
Official Websites
Guam official website · Spain official website
More Size Comparisons
All Guam size comparisons · All Spain 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.