The map above shows Idaho and Nevada side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Idaho vs Nevada Geography
Land area: Idaho has a land area of 82,645 square miles (214,051 km²), while Nevada has 109,860 square miles (284,537 km²). Nevada's land area is 1.3 times (33%) larger than Idaho's.
Total area: Idaho: 83,569 square miles (216,441 km²) vs Nevada: 110,571 square miles (286,377 km²), including inland and coastal water. Nevada's total area is 1.3 times (32%) larger than Idaho's.
Length: Idaho is 483 miles (778 km) long from north to south; Nevada is 484 miles (780 km). Idaho and Nevada have about the same north-south length.
Width: Idaho spans 352 miles (566 km) east to west; Nevada spans 469 miles (755 km). Nevada's east-west width is 1.3 times (33%) wider than Idaho's.
Highest point: Idaho's highest point is Borah Peak at 12,631 feet (3,850 m); Nevada's is Boundary Peak at 13,115 feet (3,997 m). Boundary Peak is 484 feet higher than Borah Peak.
Lowest point: Idaho's lowest point is Snake River at 718 feet; Nevada's is Colorado River at 481 feet. Nevada's lowest point is 237 feet lower.
Idaho vs Nevada Population and History
Population: Idaho has a population of 2,001,619 (2024), while Nevada has 3,267,467 (2024). Nevada's population is 1.6 times (63%) larger than Idaho's.
Population density: Idaho: 24.2 people per square mile vs Nevada: 29.7. Nevada's population density is 1.2 times (23%) higher than Idaho's.
Biggest city: Idaho's biggest city is Boise with 237,963 people; Nevada's is Las Vegas with 678,922. Las Vegas' population is 2.9 times (185%) larger than Boise's.
Largest metro area: Idaho's largest metropolitan area is Boise City, ID metro area (845,877 people) vs Nevada's Las Vegas-Henderson-North Las Vegas, NV metro area (2,398,871). Las Vegas-Henderson-North Las Vegas, NV metro area's population is 2.8 times (184%) larger than Boise City, ID metro area's.
History: Idaho: Admitted to the Union on July 3, 1890, as the 43rd state. Nevada: Admitted to the Union on October 31, 1864, as the 36th state. In its current form, Nevada is the older of the two by 26 years.
Idaho vs Nevada Economy
GDP: Idaho's GDP is $129.0 billion (2024) vs Nevada's $269.0 billion. Nevada's economic output is 2.1 times (109%) larger than Idaho's.
GDP per capita: Idaho: $64,457 per person vs Nevada: $82,330. Nevada's GDP per capita is 1.3 times (28%) higher than Idaho's.
Average income: Idaho: $62,323 vs Nevada: $69,805 average income per person (per capita personal income). Nevada's average income is 1.1 times (12%) higher than Idaho's.
Idaho vs Nevada Counties
Number of counties: Idaho has 44 counties, while Nevada has 17. Idaho's county count is 2.6 times (159%) higher than Nevada's.
Biggest county by area: Idaho's largest county is Idaho County at 8,478 square miles; Nevada's is Nye County at 18,182 square miles. Nye County's land area is 2.1 times (114%) larger than Idaho County's.
Smallest county by area: Idaho: Payette County (407 sq mi) vs Nevada: Carson City (145 sq mi). Payette County's land area is 2.8 times (182%) larger than Carson City's.
Most populous county: Idaho: Ada County (535,799 people) vs Nevada: Clark County (2,398,871 people). Clark County's population is 4.5 times (348%) larger than Ada County's.
Least populous county: Idaho: Clark County (794 people) vs Nevada: Esmeralda County (720 people). Clark County's population is 1.1 times (10%) larger than Esmeralda County's.
Richest county: Idaho: Blaine County ($202,612 per capita income) vs Nevada: Douglas County ($109,486). Blaine County's income is 1.9 times (85%) richer than Douglas County's.
Poorest county: Idaho: Madison County ($29,485 per capita income) vs Nevada: Pershing County ($45,906). Pershing County's income is 1.6 times (56%) richer than Madison County's.
Idaho vs Nevada Taxes
State income tax: Idaho has a top income tax rate of 5.3%, while Nevada has no state income tax. Idaho's top rate is 5.3 percentage points higher.
Property tax: Idaho: 0.43% effective rate vs Nevada: 0.47% of home value per year. Nevada's rate is 0.04 percentage points higher.
Sales tax: Idaho: 6.03% combined state and average local rate vs Nevada: 8.24%. Nevada's combined rate is 2.21 percentage points higher.
Official Websites
Idaho official website · Nevada official website
More Size Comparisons
All Idaho size comparisons · All Nevada 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.