The map above shows Guam and Prince Edward Island side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Guam vs Prince Edward Island Geography
Land area: Guam has a land area of 210 square miles (544 km²), while Prince Edward Island has 2,185 square miles (5,660 km²). Prince Edward Island's land area is 10.4 times larger than Guam's.
Total area: Guam: 210 square miles (544 km²) vs Prince Edward Island: 2,185 square miles (5,660 km²), including inland and coastal water. Prince Edward Island's total area is 10.4 times larger than Guam's.
Length: Guam is 27 miles (43 km) long from north to south; Prince Edward Island is 97 miles (157 km). Prince Edward Island's north-south length is 3.6 times (259%) longer than Guam's.
Width: Guam spans 22 miles (35 km) east to west; Prince Edward Island spans 117 miles (188 km). Prince Edward Island's east-west width is 5.3 times (432%) wider than Guam's.
Highest point: Guam's highest point is Mount Lamlam at 1,332 feet (406 m); Prince Edward Island's is Springton at 466 feet (142 m). Mount Lamlam is 866 feet higher than Springton.
Lowest point: Guam's lowest point is Pacific Ocean at 0 feet; Prince Edward Island's is Gulf of St. Lawrence at 0 feet. Both lowest points are at or near sea level.
Guam vs Prince Edward Island Population and History
Population: Guam has a population of 153,836 (2020), while Prince Edward Island has 182,001 (2026). Prince Edward Island's population is 1.2 times (18%) larger than Guam's.
Population density: Guam: 732.6 people per square mile vs Prince Edward Island: 83.3. Guam's population density is 8.8 times (779%) higher than Prince Edward Island's.
History: Guam: A US territory since 1898. Prince Edward Island: Joined Confederation on July 1, 1873. In its current form, Prince Edward Island is the older of the two by 25 years.
Official Websites
Guam official website · Prince Edward Island official website
More Size Comparisons
All Guam size comparisons · All Prince Edward Island 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.