The map above shows Ohio and New South Wales side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Ohio vs New South Wales Geography
Land area
- Ohio has a land area of 40,859 square miles (105,824 km²), while New South Wales has 309,130 square miles (800,642 km²).
- New South Wales' land area is 7.6 times (657%) larger than Ohio's.
Total area
- Ohio: 44,826 square miles (116,098 km²) vs New South Wales: 309,130 square miles (800,642 km²), including inland and coastal water.
- New South Wales' total area is 6.9 times (590%) larger than Ohio's.
Length
- Ohio is 291 miles (468 km) long from north to south; New South Wales is 678 miles (1,092 km).
- New South Wales' north-south length is 2.3 times (133%) longer than Ohio's.
Width
- Ohio spans 317 miles (510 km) east to west; New South Wales spans 831 miles (1,338 km).
- New South Wales' east-west width is 2.6 times (162%) wider than Ohio's.
Highest point
- Ohio's highest point is Campbell Hill at 1,547 feet (472 m); New South Wales's is Mount Kosciuszko at 7,310 feet (2,228 m).
- Mount Kosciuszko is 5,763 feet higher than Campbell Hill.
Lowest point
- Ohio's lowest point is Ohio River at 455 feet; New South Wales's is Pacific Ocean at 0 feet.
- New South Wales's lowest point is 455 feet lower.
Ohio vs New South Wales Population and History
Population
- Ohio has a population of 11,883,304 (2024), while New South Wales has 8,624,534 (2025).
- Ohio's population is 1.4 times (38%) larger than New South Wales'.
Population density
- Ohio: 290.8 people per square mile vs New South Wales: 27.9.
- Ohio's population density is 10.4 times higher than New South Wales'.
Largest metro area
- Ohio's largest metropolitan area is Cincinnati, OH-KY-IN metro area (2,302,815 people) vs New South Wales's Greater Sydney (5,638,830).
- Greater Sydney's population is 2.4 times (145%) larger than Cincinnati, OH-KY-IN metro area's.
History
- Ohio: Admitted to the Union on March 1, 1803, as the 17th state.
- New South Wales: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1788.
- In its current form, Ohio is the older of the two by 98 years.
Ohio vs New South Wales Economy
GDP
- Ohio's GDP is $923.1 billion (2024) vs New South Wales's $547.1 billion.
- Ohio's economic output is 1.7 times (69%) larger than New South Wales'.
GDP per capita
- Ohio: $77,684 per person vs New South Wales: $63,435.
- Ohio's GDP per capita is 1.2 times (22%) higher than New South Wales'.
Official Websites
Ohio official website · New South Wales official website
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More Size Comparisons
All Ohio 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.