The map above shows Northern Territory and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Northern Territory vs Ontario Geography
Land area
- Northern Territory has a land area of 520,902 square miles (1,349,129 km²), while Ontario has 354,342 square miles (917,741 km²).
- Northern Territory's land area is 1.5 times (47%) larger than Ontario's.
Total area
- Northern Territory: 520,902 square miles (1,349,129 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water.
- Northern Territory's total area is 1.3 times (25%) larger than Ontario's.
Length
- Northern Territory is 1,092 miles (1,758 km) long from north to south; Ontario is 1,085 miles (1,747 km).
- Northern Territory and Ontario have about the same north-south length.
Width
- Northern Territory spans 610 miles (981 km) east to west; Ontario spans 1,013 miles (1,630 km).
- Ontario's east-west width is 1.7 times (66%) wider than Northern Territory's.
Highest point
- Northern Territory's highest point is Mount Zeil at 5,023 feet (1,531 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m).
- Mount Zeil is 2,749 feet higher than Ishpatina Ridge.
Lowest point
- Northern Territory's lowest point is Timor Sea at 0 feet; Ontario's is Hudson Bay at 0 feet.
- Both lowest points are at or near sea level.
Northern Territory vs Ontario Population and History
Population
- Northern Territory has a population of 265,457 (2025), while Ontario has 16,136,480 (2026).
- Ontario's population is 60.8 times larger than Northern Territory's.
Population density
- Northern Territory: 0.5 people per square mile vs Ontario: 45.5.
- Ontario's population density is 91.0 times higher than Northern Territory's.
Largest metro area
- Northern Territory's largest metropolitan area is Greater Darwin (159,284 people) vs Ontario's Toronto CMA (6,202,225).
- Toronto CMA's population is 38.9 times larger than Greater Darwin's.
History
- Northern Territory: Became a federal territory on January 1, 1911; self-governing since 1978.
- 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.
Northern Territory vs Ontario Economy
GDP
- Northern Territory's GDP is $22.4 billion (2025) vs Ontario's $873.9 billion.
- Ontario's economic output is 39.0 times larger than Northern Territory's.
GDP per capita
- Northern Territory: $84,383 per person vs Ontario: $54,132.
- Northern Territory's GDP per capita is 1.6 times (56%) higher than Ontario's.
Official Websites
Northern Territory official website · Ontario official website
Download the Northern Territory vs Ontario Size Comparison Map for free
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More Size Comparisons
All Northern 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.