The map above shows Massachusetts and New South Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Massachusetts vs New South Wales Geography
Land area: Massachusetts has a land area of 7,801 square miles (20,204 km²), while New South Wales has 309,130 square miles (800,642 km²). New South Wales' land area is 39.6 times larger than Massachusetts'.
Total area: Massachusetts: 10,554 square miles (27,335 km²) vs New South Wales: 309,130 square miles (800,642 km²), including inland and coastal water. New South Wales' total area is 29.3 times larger than Massachusetts'.
Length: Massachusetts is 123 miles (198 km) long from north to south; New South Wales is 678 miles (1,092 km). New South Wales' north-south length is 5.5 times (451%) longer than Massachusetts'.
Width: Massachusetts spans 185 miles (297 km) east to west; New South Wales spans 831 miles (1,338 km). New South Wales' east-west width is 4.5 times (349%) wider than Massachusetts'.
Highest point: Massachusetts's highest point is Mount Greylock at 3,489 feet (1,063 m); New South Wales's is Mount Kosciuszko at 7,310 feet (2,228 m). Mount Kosciuszko is 3,821 feet higher than Mount Greylock.
Lowest point: Massachusetts's lowest point is Atlantic Ocean at 0 feet; New South Wales's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Massachusetts vs New South Wales Population and History
Population: Massachusetts has a population of 7,136,171 (2024), while New South Wales has 8,624,534 (2025). New South Wales' population is 1.2 times (21%) larger than Massachusetts'.
Population density: Massachusetts: 914.8 people per square mile vs New South Wales: 27.9. Massachusetts' population density is 32.8 times higher than New South Wales'.
Largest metro area: Massachusetts's largest metropolitan area is Boston-Cambridge-Newton, MA-NH metro area (5,025,517 people) vs New South Wales's Greater Sydney (5,638,830). Greater Sydney's population is 1.1 times (12%) larger than Boston-Cambridge-Newton, MA-NH metro area's.
History: Massachusetts: Admitted to the Union on February 6, 1788, as the 6th state. New South Wales: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1788. In its current form, Massachusetts is the older of the two by 113 years.
Massachusetts vs New South Wales Economy
GDP: Massachusetts's GDP is $778.5 billion (2024) vs New South Wales's $547.1 billion. Massachusetts' economic output is 1.4 times (42%) larger than New South Wales'.
GDP per capita: Massachusetts: $109,095 per person vs New South Wales: $63,435. Massachusetts' GDP per capita is 1.7 times (72%) higher than New South Wales'.
Official Websites
Massachusetts official website · New South Wales official website
More Size Comparisons
All Massachusetts size comparisons · All New South Wales 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.