The map above shows Idaho and Alberta side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Idaho vs Alberta Geography
Land area: Idaho has a land area of 82,645 square miles (214,051 km²), while Alberta has 248,000 square miles (642,317 km²). Alberta's land area is 3.0 times (200%) larger than Idaho's.
Total area: Idaho: 83,569 square miles (216,441 km²) vs Alberta: 255,541 square miles (661,848 km²), including inland and coastal water. Alberta's total area is 3.1 times (206%) larger than Idaho's.
Length: Idaho is 483 miles (778 km) long from north to south; Alberta is 810 miles (1,303 km). Alberta's north-south length is 1.7 times (68%) longer than Idaho's.
Width: Idaho spans 352 miles (566 km) east to west; Alberta spans 544 miles (876 km). Alberta's east-west width is 1.5 times (55%) wider than Idaho's.
Highest point: Idaho's highest point is Borah Peak at 12,631 feet (3,850 m); Alberta's is Mount Columbia at 12,293 feet (3,747 m). Borah Peak is 338 feet higher than Mount Columbia.
Lowest point: Idaho's lowest point is Snake River at 718 feet; Alberta's is Slave River at 499 feet. Alberta's lowest point is 219 feet lower.
Idaho vs Alberta Population and History
Population: Idaho has a population of 2,001,619 (2024), while Alberta has 5,048,151 (2026). Alberta's population is 2.5 times (152%) larger than Idaho's.
Population density: Idaho: 24.2 people per square mile vs Alberta: 20.4. Idaho's population density is 1.2 times (19%) higher than Alberta's.
Biggest city: Idaho's biggest city is Boise with 237,963 people; Alberta's is Calgary with 1,306,784. Calgary's population is 5.5 times (449%) larger than Boise's.
Largest metro area: Idaho's largest metropolitan area is Boise City, ID metro area (845,877 people) vs Alberta's Calgary CMA (1,481,806). Calgary CMA's population is 1.8 times (75%) larger than Boise City, ID metro area's.
History: Idaho: Admitted to the Union on July 3, 1890, as the 43rd state. Alberta: Joined Confederation on September 1, 1905. In its current form, Idaho is the older of the two by 15 years.
Idaho vs Alberta Economy
GDP: Idaho's GDP is $129.0 billion (2024) vs Alberta's $346.0 billion. Alberta's economic output is 2.7 times (168%) larger than Idaho's.
GDP per capita: Idaho: $64,457 per person vs Alberta: $70,487. Alberta's GDP per capita is 1.1 times (9%) higher than Idaho's.
Official Websites
Idaho official website · Alberta official website
More Size Comparisons
All Idaho size comparisons · All Alberta 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.