The map above shows Maine and New South Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Maine vs New South Wales Geography
Land area: Maine has a land area of 30,845 square miles (79,888 km²), while New South Wales has 309,130 square miles (800,642 km²). New South Wales' land area is 10.0 times larger than Maine's.
Total area: Maine: 35,380 square miles (91,634 km²) vs New South Wales: 309,130 square miles (800,642 km²), including inland and coastal water. New South Wales' total area is 8.7 times (774%) larger than Maine's.
Length: Maine is 311 miles (501 km) long from north to south; New South Wales is 678 miles (1,092 km). New South Wales' north-south length is 2.2 times (118%) longer than Maine's.
Width: Maine spans 203 miles (327 km) east to west; New South Wales spans 831 miles (1,338 km). New South Wales' east-west width is 4.1 times (309%) wider than Maine's.
Highest point: Maine's highest point is Mount Katahdin at 5,253 feet (1,601 m); New South Wales's is Mount Kosciuszko at 7,310 feet (2,228 m). Mount Kosciuszko is 2,057 feet higher than Mount Katahdin.
Lowest point: Maine'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.
Maine vs New South Wales Population and History
Population: Maine has a population of 1,405,012 (2024), while New South Wales has 8,624,534 (2025). New South Wales' population is 6.1 times (514%) larger than Maine's.
Population density: Maine: 45.6 people per square mile vs New South Wales: 27.9. Maine's population density is 1.6 times (63%) higher than New South Wales'.
Largest metro area: Maine's largest metropolitan area is Portland-South Portland, ME metro area (571,534 people) vs New South Wales's Greater Sydney (5,638,830). Greater Sydney's population is 9.9 times (887%) larger than Portland-South Portland, ME metro area's.
History: Maine: Admitted to the Union on March 15, 1820, as the 23rd state. New South Wales: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1788. In its current form, Maine is the older of the two by 81 years.
Maine vs New South Wales Economy
GDP: Maine's GDP is $99.2 billion (2024) vs New South Wales's $547.1 billion. New South Wales' economic output is 5.5 times (452%) larger than Maine's.
GDP per capita: Maine: $70,586 per person vs New South Wales: $63,435. Maine's GDP per capita is 1.1 times (11%) higher than New South Wales'.
Official Websites
Maine official website · New South Wales official website
More Size Comparisons
All Maine 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.