The map above shows Mississippi and New South Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Mississippi vs New South Wales Geography
Land area: Mississippi has a land area of 46,925 square miles (121,534 km²), while New South Wales has 309,130 square miles (800,642 km²). New South Wales' land area is 6.6 times (559%) larger than Mississippi's.
Total area: Mississippi: 48,436 square miles (125,448 km²) vs New South Wales: 309,130 square miles (800,642 km²), including inland and coastal water. New South Wales' total area is 6.4 times (538%) larger than Mississippi's.
Length: Mississippi is 337 miles (542 km) long from north to south; New South Wales is 678 miles (1,092 km). New South Wales' north-south length is 2.0 times (101%) longer than Mississippi's.
Width: Mississippi spans 340 miles (547 km) east to west; New South Wales spans 831 miles (1,338 km). New South Wales' east-west width is 2.4 times (144%) wider than Mississippi's.
Highest point: Mississippi's highest point is Woodall Mountain at 805 feet (245 m); New South Wales's is Mount Kosciuszko at 7,310 feet (2,228 m). Mount Kosciuszko is 6,505 feet higher than Woodall Mountain.
Lowest point: Mississippi's lowest point is Gulf of Mexico at 0 feet; New South Wales's is Pacific Ocean at 0 feet. Both lowest points are at or near sea level.
Mississippi vs New South Wales Population and History
Population: Mississippi has a population of 2,943,045 (2024), while New South Wales has 8,624,534 (2025). New South Wales' population is 2.9 times (193%) larger than Mississippi's.
Population density: Mississippi: 62.7 people per square mile vs New South Wales: 27.9. Mississippi's population density is 2.2 times (125%) higher than New South Wales'.
Largest metro area: Mississippi's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs New South Wales's Greater Sydney (5,638,830). Greater Sydney's population is 4.2 times (321%) larger than Memphis, TN-MS-AR metro area's.
History: Mississippi: Admitted to the Union on December 10, 1817, as the 20th state. New South Wales: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1788. In its current form, Mississippi is the older of the two by 84 years.
Mississippi vs New South Wales Economy
GDP: Mississippi's GDP is $158.2 billion (2024) vs New South Wales's $547.1 billion. New South Wales' economic output is 3.5 times (246%) larger than Mississippi's.
GDP per capita: Mississippi: $53,751 per person vs New South Wales: $63,435. New South Wales' GDP per capita is 1.2 times (18%) higher than Mississippi's.
Official Websites
Mississippi official website · New South Wales official website
More Size Comparisons
All Mississippi 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.