The map above shows New South Wales and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New South Wales vs Ontario Geography
Land area
- New South Wales has a land area of 309,130 square miles (800,642 km²), while Ontario has 354,342 square miles (917,741 km²).
- Ontario's land area is 1.1 times (15%) larger than New South Wales'.
Total area
- New South Wales: 309,130 square miles (800,642 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water.
- Ontario's total area is 1.3 times (34%) larger than New South Wales'.
Length
- New South Wales is 678 miles (1,092 km) long from north to south; Ontario is 1,085 miles (1,747 km).
- Ontario's north-south length is 1.6 times (60%) longer than New South Wales'.
Width
- New South Wales spans 831 miles (1,338 km) east to west; Ontario spans 1,013 miles (1,630 km).
- Ontario's east-west width is 1.2 times (22%) wider than New South Wales'.
Highest point
- New South Wales's highest point is Mount Kosciuszko at 7,310 feet (2,228 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m).
- Mount Kosciuszko is 5,036 feet higher than Ishpatina Ridge.
Lowest point
- New South Wales's lowest point is Pacific Ocean at 0 feet; Ontario's is Hudson Bay at 0 feet.
- Both lowest points are at or near sea level.
New South Wales vs Ontario Population and History
Population
- New South Wales has a population of 8,624,534 (2025), while Ontario has 16,136,480 (2026).
- Ontario's population is 1.9 times (87%) larger than New South Wales'.
Population density
- New South Wales: 27.9 people per square mile vs Ontario: 45.5.
- Ontario's population density is 1.6 times (63%) higher than New South Wales'.
Largest metro area
- New South Wales's largest metropolitan area is Greater Sydney (5,638,830 people) vs Ontario's Toronto CMA (6,202,225).
- Toronto CMA's population is 1.1 times (10%) larger than Greater Sydney's.
History
- New South Wales: Became an Australian state at Federation on January 1, 1901; founded as a colony in 1788.
- Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces.
- In its current form, Ontario is the older of the two by 34 years.
New South Wales vs Ontario Economy
GDP
- New South Wales's GDP is $547.1 billion (2025) vs Ontario's $873.9 billion.
- Ontario's economic output is 1.6 times (60%) larger than New South Wales'.
GDP per capita
- New South Wales: $63,435 per person vs Ontario: $54,132.
- New South Wales' GDP per capita is 1.2 times (17%) higher than Ontario's.
Official Websites
New South Wales official website · Ontario official website
Download the New South Wales vs Ontario Size Comparison Map for free
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More Size Comparisons
All New South Wales size comparisons · All Ontario 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.