The map above shows Australian Capital Territory and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Australian Capital Territory vs Ontario Geography
Land area
- Australian Capital Territory has a land area of 910 square miles (2,358 km²), while Ontario has 354,342 square miles (917,741 km²).
- Ontario's land area is 389.2 times larger than Australian Capital Territory's.
Total area
- Australian Capital Territory: 910 square miles (2,358 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water.
- Ontario's total area is 456.5 times larger than Australian Capital Territory's.
Length
- Australian Capital Territory is 54 miles (87 km) long from north to south; Ontario is 1,085 miles (1,747 km).
- Ontario's north-south length is 20.1 times longer than Australian Capital Territory's.
Width
- Australian Capital Territory spans 38 miles (61 km) east to west; Ontario spans 1,013 miles (1,630 km).
- Ontario's east-west width is 26.7 times wider than Australian Capital Territory's.
Highest point
- Australian Capital Territory's highest point is Bimberi Peak at 6,273 feet (1,912 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m).
- Bimberi Peak is 3,999 feet higher than Ishpatina Ridge.
Lowest point
- Australian Capital Territory's lowest point is Molonglo River at 1,407 feet; Ontario's is Hudson Bay at 0 feet.
- Ontario's lowest point is 1,407 feet lower.
Australian Capital Territory vs Ontario Population and History
Population
- Australian Capital Territory has a population of 486,231 (2025), while Ontario has 16,136,480 (2026).
- Ontario's population is 33.2 times larger than Australian Capital Territory's.
Population density
- Australian Capital Territory: 534.3 people per square mile vs Ontario: 45.5.
- Australian Capital Territory's population density is 11.7 times higher than Ontario's.
Largest metro area
- Australian Capital Territory's largest metropolitan area is Greater Canberra (486,231 people) vs Ontario's Toronto CMA (6,202,225).
- Toronto CMA's population is 12.8 times larger than Greater Canberra's.
History
- Australian Capital Territory: Established as the Federal Capital Territory on January 1, 1911.
- 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 44 years.
Australian Capital Territory vs Ontario Economy
GDP
- Australian Capital Territory's GDP is $38.0 billion (2025) vs Ontario's $873.9 billion.
- Ontario's economic output is 23.0 times larger than Australian Capital Territory's.
GDP per capita
- Australian Capital Territory: $78,152 per person vs Ontario: $54,132.
- Australian Capital Territory's GDP per capita is 1.4 times (44%) higher than Ontario's.
Official Websites
Australian Capital Territory official website · Ontario official website
Download the Australian Capital Territory vs Ontario Size Comparison Map for free
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More Size Comparisons
All Australian Capital Territory 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.