The map above shows United States and Guam side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
United States vs Guam Geography
Land area: United States has a land area of 3,533,467 square miles (9,151,637 km²), while Guam has 210 square miles (544 km²). United States' land area is 16,822.9 times larger than Guam's.
Total area: United States: 3,802,784 square miles (9,849,165 km²) vs Guam: 210 square miles (544 km²), including inland and coastal water. United States' total area is 18,105.1 times larger than Guam's.
Length: United States is 3,628 miles (5,839 km) long from north to south; Guam is 27 miles (43 km). United States' north-south length is 134.4 times longer than Guam's.
Width: United States spans 4,824 miles (7,763 km) east to west; Guam spans 22 miles (35 km). United States' east-west width is 219.3 times wider than Guam's.
Highest point: United States's highest point is Denali at 20,308 feet (6,190 m); Guam's is Mount Lamlam at 1,332 feet (406 m). Denali is 18,976 feet higher than Mount Lamlam.
Lowest point: United States's lowest point is Death Valley at -279 feet; Guam's is Pacific Ocean at 0 feet. United States's lowest point is 279 feet lower.
United States vs Guam Population and History
Population: United States has a population of 340,110,988 (2024), while Guam has 153,836 (2020). United States' population is 2,210.9 times larger than Guam's.
Population density: United States: 96.3 people per square mile vs Guam: 732.6. Guam's population density is 7.6 times (661%) higher than United States'.
History: United States: Declared independence on July 4, 1776. Guam: A US territory since 1898. In its current form, United States is the older of the two by 122 years.
Official Websites
United States official website · Guam official website
More Size Comparisons
All United States size comparisons · All Guam 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.