The map above shows Louisiana and Ontario side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Louisiana vs Ontario Geography
Land area: Louisiana has a land area of 43,213 square miles (111,921 km²), while Ontario has 354,342 square miles (917,741 km²). Ontario's land area is 8.2 times (720%) larger than Louisiana's.
Total area: Louisiana: 52,375 square miles (135,652 km²) vs Ontario: 415,598 square miles (1,076,395 km²), including inland and coastal water. Ontario's total area is 7.9 times (693%) larger than Louisiana's.
Length: Louisiana is 301 miles (484 km) long from north to south; Ontario is 1,085 miles (1,747 km). Ontario's north-south length is 3.6 times (260%) longer than Louisiana's.
Width: Louisiana spans 356 miles (574 km) east to west; Ontario spans 1,013 miles (1,630 km). Ontario's east-west width is 2.8 times (185%) wider than Louisiana's.
Highest point: Louisiana's highest point is Driskill Mountain at 533 feet (162 m); Ontario's is Ishpatina Ridge at 2,274 feet (693 m). Ishpatina Ridge is 1,741 feet higher than Driskill Mountain.
Lowest point: Louisiana's lowest point is New Orleans at -8 feet; Ontario's is Hudson Bay at 0 feet. Louisiana's lowest point is 8 feet lower.
Louisiana vs Ontario Population and History
Population: Louisiana has a population of 4,597,740 (2024), while Ontario has 16,136,480 (2026). Ontario's population is 3.5 times (251%) larger than Louisiana's.
Population density: Louisiana: 106.4 people per square mile vs Ontario: 45.5. Louisiana's population density is 2.3 times (134%) higher than Ontario's.
Biggest city: Louisiana's biggest city is New Orleans with 362,701 people; Ontario's is Toronto with 2,794,356. Toronto's population is 7.7 times (670%) larger than New Orleans'.
Largest metro area: Louisiana's largest metropolitan area is New Orleans-Metairie, LA metro area (966,230 people) vs Ontario's Toronto CMA (6,202,225). Toronto CMA's population is 6.4 times (542%) larger than New Orleans-Metairie, LA metro area's.
History: Louisiana: Admitted to the Union on April 30, 1812, as the 18th state. Ontario: Joined Confederation on July 1, 1867, as one of the four founding provinces. In its current form, Louisiana is the older of the two by 55 years.
Louisiana vs Ontario Economy
GDP: Louisiana's GDP is $329.2 billion (2024) vs Ontario's $873.9 billion. Ontario's economic output is 2.7 times (165%) larger than Louisiana's.
GDP per capita: Louisiana: $71,594 per person vs Ontario: $54,132. Louisiana's GDP per capita is 1.3 times (32%) higher than Ontario's.
Official Websites
Louisiana official website · Ontario official website
More Size Comparisons
All Louisiana 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.