The map above shows Indiana and Iowa side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Indiana vs Iowa Geography
Land area: Indiana has a land area of 35,825 square miles (92,787 km²), while Iowa has 55,854 square miles (144,660 km²). Iowa's land area is 1.6 times (56%) larger than Indiana's.
Total area: Indiana: 36,421 square miles (94,331 km²) vs Iowa: 56,273 square miles (145,746 km²), including inland and coastal water. Iowa's total area is 1.5 times (55%) larger than Indiana's.
Length: Indiana is 276 miles (444 km) long from north to south; Iowa is 216 miles (347 km). Indiana's north-south length is 1.3 times (28%) longer than Iowa's.
Width: Indiana spans 193 miles (310 km) east to west; Iowa spans 335 miles (539 km). Iowa's east-west width is 1.7 times (74%) wider than Indiana's.
Highest point: Indiana's highest point is Hoosier Hill at 1,255 feet (383 m); Iowa's is Hawkeye Point at 1,669 feet (509 m). Hawkeye Point is 414 feet higher than Hoosier Hill.
Lowest point: Indiana's lowest point is Ohio River at 330 feet; Iowa's is Mississippi River at 480 feet. Indiana's lowest point is 150 feet lower.
Indiana vs Iowa Population and History
Population: Indiana has a population of 6,924,275 (2024), while Iowa has 3,241,488 (2024). Indiana's population is 2.1 times (114%) larger than Iowa's.
Population density: Indiana: 193.3 people per square mile vs Iowa: 58.0. Indiana's population density is 3.3 times (233%) higher than Iowa's.
Biggest city: Indiana's biggest city is Indianapolis with 891,484 people; Iowa's is Des Moines with 213,096. Indianapolis' population is 4.2 times (318%) larger than Des Moines'.
Largest metro area: Indiana's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Iowa's Omaha, NE-IA metro area (1,001,010). Chicago-Naperville-Elgin, IL-IN metro area's population is 9.4 times (840%) larger than Omaha, NE-IA metro area's.
History: Indiana: Admitted to the Union on December 11, 1816, as the 19th state. Iowa: Admitted to the Union on December 28, 1846, as the 29th state. In its current form, Indiana is the older of the two by 30 years.
Indiana vs Iowa Economy
GDP: Indiana's GDP is $519.5 billion (2024) vs Iowa's $265.8 billion. Indiana's economic output is 2.0 times (95%) larger than Iowa's.
GDP per capita: Indiana: $75,028 per person vs Iowa: $81,998. Iowa's GDP per capita is 1.1 times (9%) higher than Indiana's.
Average income: Indiana: $64,077 vs Iowa: $65,225 average income per person (per capita personal income). Indiana and Iowa have about the same average income.
Indiana vs Iowa Counties
Number of counties: Indiana has 92 counties, while Iowa has 99. Iowa's county count is 1.1 times (8%) higher than Indiana's.
Biggest county by area: Indiana's largest county is Allen County at 657 square miles; Iowa's is Kossuth County at 973 square miles. Kossuth County's land area is 1.5 times (48%) larger than Allen County's.
Smallest county by area: Indiana: Ohio County (86 sq mi) vs Iowa: Dickinson County (381 sq mi). Dickinson County's land area is 4.4 times (341%) larger than Ohio County's.
Most populous county: Indiana: Marion County (981,628 people) vs Iowa: Polk County (516,185 people). Marion County's population is 1.9 times (90%) larger than Polk County's.
Least populous county: Indiana: Ohio County (5,996 people) vs Iowa: Adams County (3,606 people). Ohio County's population is 1.7 times (66%) larger than Adams County's.
Richest county: Indiana: Hamilton County ($104,283 per capita income) vs Iowa: Mitchell County ($98,211). Hamilton County's income is 1.1 times (6%) richer than Mitchell County's.
Poorest county: Indiana: Miami County ($44,940 per capita income) vs Iowa: Decatur County ($46,134). Miami County and Decatur County have about the same income.
Indiana vs Iowa Taxes
State income tax: Indiana has a top income tax rate of 2.95%, while Iowa has a top income tax rate of 3.8%. Iowa's top rate is 0.85 percentage points higher.
Property tax: Indiana: 0.74% effective rate vs Iowa: 1.29% of home value per year. Iowa's rate is 0.55 percentage points higher.
Sales tax: Indiana: 7% combined state and average local rate vs Iowa: 6.94%. Indiana's combined rate is 0.06 percentage points higher.
Official Websites
Indiana official website · Iowa official website
More Size Comparisons
All Indiana 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.