The map above shows Indiana and Missouri side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Indiana vs Missouri Geography
Land area: Indiana has a land area of 35,825 square miles (92,787 km²), while Missouri has 68,746 square miles (178,052 km²). Missouri's land area is 1.9 times (92%) larger than Indiana's.
Total area: Indiana: 36,421 square miles (94,331 km²) vs Missouri: 69,707 square miles (180,540 km²), including inland and coastal water. Missouri's total area is 1.9 times (91%) larger than Indiana's.
Length: Indiana is 276 miles (444 km) long from north to south; Missouri is 328 miles (529 km). Missouri's north-south length is 1.2 times (19%) longer than Indiana's.
Width: Indiana spans 193 miles (310 km) east to west; Missouri spans 437 miles (703 km). Missouri's east-west width is 2.3 times (126%) wider than Indiana's.
Highest point: Indiana's highest point is Hoosier Hill at 1,255 feet (383 m); Missouri's is Taum Sauk Mountain at 1,771 feet (540 m). Taum Sauk Mountain is 516 feet higher than Hoosier Hill.
Lowest point: Indiana's lowest point is Ohio River at 330 feet; Missouri's is St. Francis River at 230 feet. Missouri's lowest point is 100 feet lower.
Indiana vs Missouri Population and History
Population: Indiana has a population of 6,924,275 (2024), while Missouri has 6,245,466 (2024). Indiana's population is 1.1 times (11%) larger than Missouri's.
Population density: Indiana: 193.3 people per square mile vs Missouri: 90.8. Indiana's population density is 2.1 times (113%) higher than Missouri's.
Biggest city: Indiana's biggest city is Indianapolis with 891,484 people; Missouri's is Kansas City with 516,032. Indianapolis' population is 1.7 times (73%) larger than Kansas City's.
Largest metro area: Indiana's largest metropolitan area is Chicago-Naperville-Elgin, IL-IN metro area (9,408,576 people) vs Missouri's St. Louis, MO-IL metro area (2,811,927). Chicago-Naperville-Elgin, IL-IN metro area's population is 3.3 times (235%) larger than St. Louis, MO-IL metro area's.
History: Indiana: Admitted to the Union on December 11, 1816, as the 19th state. Missouri: Admitted to the Union on August 10, 1821, as the 24th state. In its current form, Indiana is the older of the two by 5 years.
Indiana vs Missouri Economy
GDP: Indiana's GDP is $519.5 billion (2024) vs Missouri's $448.7 billion. Indiana's economic output is 1.2 times (16%) larger than Missouri's.
GDP per capita: Indiana: $75,028 per person vs Missouri: $71,846. Indiana and Missouri have about the same GDP per capita.
Average income: Indiana: $64,077 vs Missouri: $64,920 average income per person (per capita personal income). Indiana and Missouri have about the same average income.
Indiana vs Missouri Counties
Number of counties: Indiana has 92 counties, while Missouri has 115. Missouri's county count is 1.3 times (25%) higher than Indiana's.
Biggest county by area: Indiana's largest county is Allen County at 657 square miles; Missouri's is Texas County at 1,177 square miles. Texas County's land area is 1.8 times (79%) larger than Allen County's.
Smallest county by area: Indiana: Ohio County (86 sq mi) vs Missouri: St. Louis city (62 sq mi). Ohio County's land area is 1.4 times (40%) larger than St. Louis city's.
Most populous county: Indiana: Marion County (981,628 people) vs Missouri: St. Louis County (992,929 people). Marion County and St. Louis County have about the same population.
Least populous county: Indiana: Ohio County (5,996 people) vs Missouri: Worth County (1,872 people). Ohio County's population is 3.2 times (220%) larger than Worth County's.
Richest county: Indiana: Hamilton County ($104,283 per capita income) vs Missouri: St. Louis County ($104,775). Hamilton County and St. Louis County have about the same income.
Poorest county: Indiana: Miami County ($44,940 per capita income) vs Missouri: Douglas County ($40,515). Miami County's income is 1.1 times (11%) richer than Douglas County's.
Indiana vs Missouri Taxes
State income tax: Indiana has a top income tax rate of 2.95%, while Missouri has a top income tax rate of 4.7%. Missouri's top rate is 1.75 percentage points higher.
Property tax: Indiana: 0.74% effective rate vs Missouri: 0.79% of home value per year. Missouri's rate is 0.05 percentage points higher.
Sales tax: Indiana: 7% combined state and average local rate vs Missouri: 8.44%. Missouri's combined rate is 1.44 percentage points higher.
Official Websites
Indiana official website · Missouri official website
More Size Comparisons
All Indiana size comparisons · All Missouri 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.