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Idaho vs Iowa Size Comparison Map

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IDAHO VS IOWAOverlaid at the same scaleIdaho83,569 sq mi (216,441 km²)Iowa56,273 sq mi (145,746 km²)Idaho is 1.5 times (49%) larger than Iowa. brilliantmaps.com

The map above shows Idaho and Iowa side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.

Idaho vs Iowa Geography

Land area

  • Idaho has a land area of 82,645 square miles (214,051 km²), while Iowa has 55,854 square miles (144,660 km²).
  • Idaho's land area is 1.5 times (48%) larger than Iowa's.

Total area

  • Idaho: 83,569 square miles (216,441 km²) vs Iowa: 56,273 square miles (145,746 km²), including inland and coastal water.
  • Idaho's total area is 1.5 times (49%) larger than Iowa's.

Length

  • Idaho is 483 miles (778 km) long from north to south; Iowa is 216 miles (347 km).
  • Idaho's north-south length is 2.2 times (124%) longer than Iowa's.

Width

  • Idaho spans 352 miles (566 km) east to west; Iowa spans 335 miles (539 km).
  • Idaho's east-west width is 1.1 times (5%) wider than Iowa's.

Highest point

  • Idaho's highest point is Borah Peak at 12,631 feet (3,850 m); Iowa's is Hawkeye Point at 1,669 feet (509 m).
  • Borah Peak is 10,962 feet higher than Hawkeye Point.

Lowest point

  • Idaho's lowest point is Snake River at 718 feet; Iowa's is Mississippi River at 480 feet.
  • Iowa's lowest point is 238 feet lower.

Idaho vs Iowa Population and History

Population

  • Idaho has a population of 2,001,619 (2024), while Iowa has 3,241,488 (2024).
  • Iowa's population is 1.6 times (62%) larger than Idaho's.

Population density

  • Idaho: 24.2 people per square mile vs Iowa: 58.0.
  • Iowa's population density is 2.4 times (140%) higher than Idaho's.

Biggest city

  • Idaho's biggest city is Boise with 237,963 people; Iowa's is Des Moines with 213,096.
  • Boise's population is 1.1 times (12%) larger than Des Moines'.

Largest metro area

  • Idaho's largest metropolitan area is Boise City, ID metro area (845,877 people) vs Iowa's Omaha, NE-IA metro area (1,001,010).
  • Omaha, NE-IA metro area's population is 1.2 times (18%) larger than Boise City, ID metro area's.

History

  • Idaho: Admitted to the Union on July 3, 1890, as the 43rd state.
  • Iowa: Admitted to the Union on December 28, 1846, as the 29th state.
  • In its current form, Iowa is the older of the two by 44 years.

Idaho vs Iowa Economy

GDP

  • Idaho's GDP is $129.0 billion (2024) vs Iowa's $265.8 billion.
  • Iowa's economic output is 2.1 times (106%) larger than Idaho's.

GDP per capita

  • Idaho: $64,457 per person vs Iowa: $81,998.
  • Iowa's GDP per capita is 1.3 times (27%) higher than Idaho's.

Average income

  • Idaho: $62,323 vs Iowa: $65,225 average income per person (per capita personal income).
  • Idaho and Iowa have about the same average income.

Idaho vs Iowa Counties

Number of counties

  • Idaho has 44 counties, while Iowa has 99.
  • Iowa's county count is 2.3 times (125%) higher than Idaho's.

Biggest county by area

  • Idaho's largest county is Idaho County at 8,478 square miles; Iowa's is Kossuth County at 973 square miles.
  • Idaho County's land area is 8.7 times (772%) larger than Kossuth County's.

Smallest county by area

  • Idaho: Payette County (407 sq mi) vs Iowa: Dickinson County (381 sq mi).
  • Payette County's land area is 1.1 times (7%) larger than Dickinson County's.

Most populous county

  • Idaho: Ada County (535,799 people) vs Iowa: Polk County (516,185 people).
  • Ada County and Polk County have about the same population.

Least populous county

  • Idaho: Clark County (794 people) vs Iowa: Adams County (3,606 people).
  • Adams County's population is 4.5 times (354%) larger than Clark County's.

Richest county

  • Idaho: Blaine County ($202,612 per capita income) vs Iowa: Mitchell County ($98,211).
  • Blaine County's income is 2.1 times (106%) richer than Mitchell County's.

Poorest county

  • Idaho: Madison County ($29,485 per capita income) vs Iowa: Decatur County ($46,134).
  • Decatur County's income is 1.6 times (56%) richer than Madison County's.

Idaho vs Iowa Taxes

State income tax

  • Idaho has a top income tax rate of 5.3%, while Iowa has a top income tax rate of 3.8%.
  • Idaho's top rate is 1.5 percentage points higher.

Property tax

  • Idaho: 0.43% effective rate vs Iowa: 1.29% of home value per year.
  • Iowa's rate is 0.86 percentage points higher.

Sales tax

  • Idaho: 6.03% combined state and average local rate vs Iowa: 6.94%.
  • Iowa's combined rate is 0.91 percentage points higher.

Official Websites

Idaho official website · Iowa official website

Download the Idaho vs Iowa Size Comparison Map for free

Idaho vs Iowa Size Comparison Map

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More Size Comparisons

All Idaho size comparisons · All Iowa 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.