The map above shows Massachusetts and Guam side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Massachusetts vs Guam Geography
Land area: Massachusetts has a land area of 7,801 square miles (20,204 km²), while Guam has 210 square miles (544 km²). Massachusetts' land area is 37.1 times larger than Guam's.
Total area: Massachusetts: 10,554 square miles (27,335 km²) vs Guam: 210 square miles (544 km²), including inland and coastal water. Massachusetts' total area is 50.2 times larger than Guam's.
Length: Massachusetts is 123 miles (198 km) long from north to south; Guam is 27 miles (43 km). Massachusetts' north-south length is 4.6 times (356%) longer than Guam's.
Width: Massachusetts spans 185 miles (297 km) east to west; Guam spans 22 miles (35 km). Massachusetts' east-west width is 8.4 times (741%) wider than Guam's.
Highest point: Massachusetts's highest point is Mount Greylock at 3,489 feet (1,063 m); Guam's is Mount Lamlam at 1,332 feet (406 m). Mount Greylock is 2,157 feet higher than Mount Lamlam.
Lowest point: Massachusetts's lowest point is Atlantic Ocean at 0 feet; Guam's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Massachusetts vs Guam Population and History
Population: Massachusetts has a population of 7,136,171 (2024), while Guam has 153,836 (2020). Massachusetts' population is 46.4 times larger than Guam's.
Population density: Massachusetts: 914.8 people per square mile vs Guam: 732.6. Massachusetts' population density is 1.2 times (25%) higher than Guam's.
History: Massachusetts: Admitted to the Union on February 6, 1788, as the 6th state. Guam: A US territory since 1898. In its current form, Massachusetts is the older of the two by 110 years.
Official Websites
Massachusetts official website · Guam official website
More Size Comparisons
All Massachusetts 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.