The map above shows Arizona and Indiana side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arizona vs Indiana Geography
Land area: Arizona has a land area of 113,655 square miles (294,366 km²), while Indiana has 35,825 square miles (92,787 km²). Arizona's land area is 3.2 times (217%) larger than Indiana's.
Total area: Arizona: 113,985 square miles (295,220 km²) vs Indiana: 36,421 square miles (94,331 km²), including inland and coastal water. Arizona's total area is 3.1 times (213%) larger than Indiana's.
Length: Arizona is 429 miles (690 km) long from north to south; Indiana is 276 miles (444 km). Arizona's north-south length is 1.6 times (55%) longer than Indiana's.
Width: Arizona spans 452 miles (727 km) east to west; Indiana spans 193 miles (310 km). Arizona's east-west width is 2.3 times (134%) wider than Indiana's.
Highest point: Arizona's highest point is Humphreys Peak at 12,620 feet (3,847 m); Indiana's is Hoosier Hill at 1,255 feet (383 m). Humphreys Peak is 11,365 feet higher than Hoosier Hill.
Lowest point: Arizona's lowest point is Colorado River at 71 feet; Indiana's is Ohio River at 330 feet. Arizona's lowest point is 259 feet lower.
Arizona vs Indiana Population and History
Population: Arizona has a population of 7,582,384 (2024), while Indiana has 6,924,275 (2024). Arizona's population is 1.1 times (10%) larger than Indiana's.
Population density: Arizona: 66.7 people per square mile vs Indiana: 193.3. Indiana's population density is 2.9 times (190%) higher than Arizona's.
Biggest city: Arizona's biggest city is Phoenix with 1,673,164 people; Indiana's is Indianapolis with 891,484. Phoenix's population is 1.9 times (88%) larger than Indianapolis'.
Largest metro area: Arizona's largest metropolitan area is Phoenix-Mesa-Chandler, AZ metro area (5,186,958 people) vs Indiana's Chicago-Naperville-Elgin, IL-IN metro area (9,408,576). Chicago-Naperville-Elgin, IL-IN metro area's population is 1.8 times (81%) larger than Phoenix-Mesa-Chandler, AZ metro area's.
History: Arizona: Admitted to the Union on February 14, 1912, as the 48th state. Indiana: Admitted to the Union on December 11, 1816, as the 19th state. In its current form, Indiana is the older of the two by 96 years.
Arizona vs Indiana Economy
GDP: Arizona's GDP is $570.1 billion (2024) vs Indiana's $519.5 billion. Arizona's economic output is 1.1 times (10%) larger than Indiana's.
GDP per capita: Arizona: $75,186 per person vs Indiana: $75,028. Arizona and Indiana have about the same GDP per capita.
Average income: Arizona: $65,798 vs Indiana: $64,077 average income per person (per capita personal income). Arizona and Indiana have about the same average income.
Arizona vs Indiana Counties
Number of counties: Arizona has 15 counties, while Indiana has 92. Indiana's county count is 6.1 times (513%) higher than Arizona's.
Biggest county by area: Arizona's largest county is Coconino County at 18,616 square miles; Indiana's is Allen County at 657 square miles. Coconino County's land area is 28.3 times larger than Allen County's.
Smallest county by area: Arizona: Santa Cruz County (1,236 sq mi) vs Indiana: Ohio County (86 sq mi). Santa Cruz County's land area is 14.3 times larger than Ohio County's.
Most populous county: Arizona: Maricopa County (4,673,096 people) vs Indiana: Marion County (981,628 people). Maricopa County's population is 4.8 times (376%) larger than Marion County's.
Least populous county: Arizona: Greenlee County (9,410 people) vs Indiana: Ohio County (5,996 people). Greenlee County's population is 1.6 times (57%) larger than Ohio County's.
Richest county: Arizona: Maricopa County ($72,176 per capita income) vs Indiana: Hamilton County ($104,283). Hamilton County's income is 1.4 times (44%) richer than Maricopa County's.
Poorest county: Arizona: Graham County ($44,164 per capita income) vs Indiana: Miami County ($44,940). Graham County and Miami County have about the same income.
Arizona vs Indiana Taxes
State income tax: Arizona has a top income tax rate of 2.5%, while Indiana has a top income tax rate of 2.95%. Indiana's top rate is 0.45 percentage points higher.
Property tax: Arizona: 0.43% effective rate vs Indiana: 0.74% of home value per year. Indiana's rate is 0.31 percentage points higher.
Sales tax: Arizona: 8.54% combined state and average local rate vs Indiana: 7%. Arizona's combined rate is 1.54 percentage points higher.
Official Websites
Arizona official website · Indiana official website
More Size Comparisons
All Arizona size comparisons · All Indiana 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.