The map above shows New Jersey and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Jersey vs Ontario Geography
Land area
- New Jersey has a land area of 7,355 square miles (19,049 km²), while Ontario has 354,342 square miles (917,741 km²).
- Ontario's land area is 48.2 times larger than New Jersey's.
Total area
- New Jersey: 8,719 square miles (22,583 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water.
- Ontario's total area is 47.7 times larger than New Jersey's.
Length
- New Jersey is 169 miles (271 km) long from north to south; Ontario is 1,085 miles (1,747 km).
- Ontario's north-south length is 6.4 times (542%) longer than New Jersey's.
Width
- New Jersey spans 129 miles (207 km) east to west; Ontario spans 1,013 miles (1,630 km).
- Ontario's east-west width is 7.9 times (685%) wider than New Jersey's.
Highest point
- New Jersey's highest point is High Point at 1,798 feet (548 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m).
- Ishpatina Ridge is 476 feet higher than High Point.
Lowest point
- New Jersey's lowest point is Atlantic Ocean at 0 feet; Ontario's is Hudson Bay at 0 feet.
- Both lowest points are at or near sea level.
New Jersey vs Ontario Population and History
Population
- New Jersey has a population of 9,500,851 (2024), while Ontario has 16,136,480 (2026).
- Ontario's population is 1.7 times (70%) larger than New Jersey's.
Population density
- New Jersey: 1,291.8 people per square mile vs Ontario: 45.5.
- New Jersey's population density is 28.4 times higher than Ontario's.
Biggest city
- New Jersey's biggest city is Newark with 317,303 people; Ontario's is Toronto with 2,794,356.
- Toronto's population is 8.8 times (781%) larger than Newark's.
Largest metro area
- New Jersey's largest metropolitan area is New York-Newark-Jersey City, NY-NJ metro area (19,940,274 people) vs Ontario's Toronto CMA (6,202,225).
- New York-Newark-Jersey City, NY-NJ metro area's population is 3.2 times (222%) larger than Toronto CMA's.
History
- New Jersey: Admitted to the Union on December 18, 1787, as the 3rd state.
- Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces.
- In its current form, New Jersey is the older of the two by 80 years.
New Jersey vs Ontario Economy
GDP
- New Jersey's GDP is $846.0 billion (2024) vs Ontario's $873.9 billion.
- New Jersey and Ontario have about the same economic output.
GDP per capita
- New Jersey: $89,045 per person vs Ontario: $54,132.
- New Jersey's GDP per capita is 1.6 times (64%) higher than Ontario's.
Official Websites
New Jersey official website · Ontario official website
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More Size Comparisons
All New Jersey 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.