The map above shows New Hampshire and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
New Hampshire vs Ontario Geography
Land area: New Hampshire has a land area of 8,954 square miles (23,190 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 39.6 times larger than New Hampshire's.
Total area: New Hampshire: 9,350 square miles (24,216 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 44.4 times larger than New Hampshire's.
Length: New Hampshire is 180 miles (290 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 6.0 times (503%) longer than New Hampshire's.
Width: New Hampshire spans 95 miles (152 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 10.7 times wider than New Hampshire's.
Highest point: New Hampshire's highest point is Mount Washington at 6,277 feet (1,913 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Mount Washington is 4,003 feet higher than Ishpatina Ridge.
Lowest point: New Hampshire'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 Hampshire vs Ontario Population and History
Population: New Hampshire has a population of 1,409,032 (2024), while Ontario has 16,136,480 (2026). Ontario's population is 11.5 times larger than New Hampshire's.
Population density: New Hampshire: 157.4 people per square mile vs Ontario: 45.5. New Hampshire's population density is 3.5 times (246%) higher than Ontario's.
Biggest city: New Hampshire's biggest city is Manchester with 116,386 people; Ontario's is Toronto with 2,794,356. Toronto's population is 24.0 times larger than Manchester's.
Largest metro area: New Hampshire's largest metropolitan area is Boston-Cambridge-Newton, MA-NH metro area (5,025,517 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 1.2 times (23%) larger than Boston-Cambridge-Newton, MA-NH metro area's.
History: New Hampshire: Admitted to the Union on June 21, 1788, as the 9th state. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, New Hampshire is the older of the two by 79 years.
New Hampshire vs Ontario Economy
GDP: New Hampshire's GDP is $119.3 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 7.3 times (633%) larger than New Hampshire's.
GDP per capita: New Hampshire: $84,694 per person vs Ontario: $54,132. New Hampshire's GDP per capita is 1.6 times (56%) higher than Ontario's.
Official Websites
New Hampshire official website · Ontario official website
More Size Comparisons
All New Hampshire 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.