The map above shows Connecticut and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Connecticut vs Ontario Geography
Land area
- Connecticut has a land area of 4,843 square miles (12,542 km²), while Ontario has 354,342 square miles (917,741 km²).
- Ontario's land area is 73.2 times larger than Connecticut's.
Total area
- Connecticut: 5,544 square miles (14,358 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water.
- Ontario's total area is 75.0 times larger than Connecticut's.
Length
- Connecticut is 73 miles (118 km) long from north to south; Ontario is 1,085 miles (1,747 km).
- Ontario's north-south length is 14.9 times longer than Connecticut's.
Width
- Connecticut spans 104 miles (167 km) east to west; Ontario spans 1,013 miles (1,630 km).
- Ontario's east-west width is 9.7 times (874%) wider than Connecticut's.
Highest point
- Connecticut's highest point is Mount Frissell (south slope) at 2,376 feet (724 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m).
- Mount Frissell (south slope) is 102 feet higher than Ishpatina Ridge.
Lowest point
- Connecticut's lowest point is Long Island Sound at 0 feet; Ontario's is Hudson Bay at 0 feet.
- Both lowest points are at or near sea level.
Connecticut vs Ontario Population and History
Population
- Connecticut has a population of 3,675,069 (2024), while Ontario has 16,136,480 (2026).
- Ontario's population is 4.4 times (339%) larger than Connecticut's.
Population density
- Connecticut: 758.9 people per square mile vs Ontario: 45.5.
- Connecticut's population density is 16.7 times higher than Ontario's.
Biggest city
- Connecticut's biggest city is Bridgeport with 151,599 people; Ontario's is Toronto with 2,794,356.
- Toronto's population is 18.4 times larger than Bridgeport's.
Largest metro area
- Connecticut's largest metropolitan area is Hartford-West Hartford-East Hartford, CT metro area (1,169,048 people) vs Ontario's Toronto CMA (6,202,225).
- Toronto CMA's population is 5.3 times (431%) larger than Hartford-West Hartford-East Hartford, CT metro area's.
History
- Connecticut: Admitted to the Union on January 9, 1788, as the 5th state.
- Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces.
- In its current form, Connecticut is the older of the two by 79 years.
Connecticut vs Ontario Economy
GDP
- Connecticut's GDP is $356.8 billion (2024) vs Ontario's $873.9 billion.
- Ontario's economic output is 2.4 times (145%) larger than Connecticut's.
GDP per capita
- Connecticut: $97,096 per person vs Ontario: $54,132.
- Connecticut's GDP per capita is 1.8 times (79%) higher than Ontario's.
Official Websites
Connecticut official website · Ontario official website
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More Size Comparisons
All Connecticut 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.