The map above shows Pennsylvania and Guam side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Pennsylvania vs Guam Geography
Land area: Pennsylvania has a land area of 44,742 square miles (115,882 km²), while Guam has 210 square miles (544 km²). Pennsylvania's land area is 213.0 times larger than Guam's.
Total area: Pennsylvania: 46,054 square miles (119,279 km²) vs Guam: 210 square miles (544 km²), including inland and coastal water. Pennsylvania's total area is 219.3 times larger than Guam's.
Length: Pennsylvania is 284 miles (458 km) long from north to south; Guam is 27 miles (43 km). Pennsylvania's north-south length is 10.5 times longer than Guam's.
Width: Pennsylvania spans 307 miles (495 km) east to west; Guam spans 22 miles (35 km). Pennsylvania's east-west width is 14.0 times wider than Guam's.
Highest point: Pennsylvania's highest point is Mount Davis at 3,210 feet (978 m); Guam's is Mount Lamlam at 1,332 feet (406 m). Mount Davis is 1,878 feet higher than Mount Lamlam.
Lowest point: Pennsylvania's lowest point is Delaware River at 0 feet; Guam's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Pennsylvania vs Guam Population and History
Population: Pennsylvania has a population of 13,078,751 (2024), while Guam has 153,836 (2020). Pennsylvania's population is 85.0 times larger than Guam's.
Population density: Pennsylvania: 292.3 people per square mile vs Guam: 732.6. Guam's population density is 2.5 times (151%) higher than Pennsylvania's.
History: Pennsylvania: Admitted to the Union on December 12, 1787, as the 2nd state. Guam: A US territory since 1898. In its current form, Pennsylvania is the older of the two by 111 years.
Official Websites
Pennsylvania official website · Guam official website
More Size Comparisons
All Pennsylvania 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.