The map above shows Guam and Italy side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Guam vs Italy Geography
Land area: Guam has a land area of 210 square miles (544 km²), while Italy has 113,568 square miles (294,140 km²). Italy's land area is 540.7 times larger than Guam's.
Total area: Guam: 210 square miles (544 km²) vs Italy: 116,348 square miles (301,340 km²), including inland and coastal water. Italy's total area is 553.9 times larger than Guam's.
Length: Guam is 27 miles (43 km) long from north to south; Italy is 734 miles (1,181 km). Italy's north-south length is 27.2 times longer than Guam's.
Width: Guam spans 22 miles (35 km) east to west; Italy spans 694 miles (1,117 km). Italy's east-west width is 31.5 times wider than Guam's.
Highest point: Guam's highest point is Mount Lamlam at 1,332 feet (406 m); Italy's is Monte Bianco (Mont Blanc) at 15,778 feet (4,809 m). Monte Bianco (Mont Blanc) is 14,446 feet higher than Mount Lamlam.
Lowest point: Guam's lowest point is Pacific Ocean at 0 feet; Italy's is Jolanda di Savoia at -10 feet. Italy's lowest point is 10 feet lower.
Guam vs Italy Population and History
Population: Guam has a population of 153,836 (2020), while Italy has 58,943,673 (2026). Italy's population is 383.2 times larger than Guam's.
Population density: Guam: 732.6 people per square mile vs Italy: 519.0. Guam's population density is 1.4 times (41%) higher than Italy's.
History: Guam: A US territory since 1898. Italy: Unified as the Kingdom of Italy on March 17, 1861; a republic since 1946. In its current form, Italy is the older of the two by 37 years.
Official Websites
Guam official website · Italy official website
More Size Comparisons
All Guam size comparisons · All Italy 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.