The map above shows Arizona and Iowa side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arizona vs Iowa Geography
Land area
- Arizona has a land area of 113,655 square miles (294,366 km²), while Iowa has 55,854 square miles (144,660 km²).
- Arizona's land area is 2.0 times (103%) larger than Iowa's.
Total area
- Arizona: 113,985 square miles (295,220 km²) vs Iowa: 56,273 square miles (145,746 km²), including inland and coastal water.
- Arizona's total area is 2.0 times (103%) larger than Iowa's.
Length
- Arizona is 429 miles (690 km) long from north to south; Iowa is 216 miles (347 km).
- Arizona's north-south length is 2.0 times (99%) longer than Iowa's.
Width
- Arizona spans 452 miles (727 km) east to west; Iowa spans 335 miles (539 km).
- Arizona's east-west width is 1.3 times (35%) wider than Iowa's.
Highest point
- Arizona's highest point is Humphreys Peak at 12,620 feet (3,847 m); Iowa's is Hawkeye Point at 1,669 feet (509 m).
- Humphreys Peak is 10,951 feet higher than Hawkeye Point.
Lowest point
- Arizona's lowest point is Colorado River at 71 feet; Iowa's is Mississippi River at 480 feet.
- Arizona's lowest point is 409 feet lower.
Arizona vs Iowa Population and History
Population
- Arizona has a population of 7,582,384 (2024), while Iowa has 3,241,488 (2024).
- Arizona's population is 2.3 times (134%) larger than Iowa's.
Population density
- Arizona: 66.7 people per square mile vs Iowa: 58.0.
- Arizona's population density is 1.2 times (15%) higher than Iowa's.
Biggest city
- Arizona's biggest city is Phoenix with 1,673,164 people; Iowa's is Des Moines with 213,096.
- Phoenix's population is 7.9 times (685%) larger than Des Moines'.
Largest metro area
- Arizona's largest metropolitan area is Phoenix-Mesa-Chandler, AZ metro area (5,186,958 people) vs Iowa's Omaha, NE-IA metro area (1,001,010).
- Phoenix-Mesa-Chandler, AZ metro area's population is 5.2 times (418%) larger than Omaha, NE-IA metro area's.
History
- Arizona: Admitted to the Union on February 14, 1912, as the 48th 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 66 years.
Arizona vs Iowa Economy
GDP
- Arizona's GDP is $570.1 billion (2024) vs Iowa's $265.8 billion.
- Arizona's economic output is 2.1 times (114%) larger than Iowa's.
GDP per capita
- Arizona: $75,186 per person vs Iowa: $81,998.
- Iowa's GDP per capita is 1.1 times (9%) higher than Arizona's.
Average income
- Arizona: $65,798 vs Iowa: $65,225 average income per person (per capita personal income).
- Arizona and Iowa have about the same average income.
Arizona vs Iowa Counties
Number of counties
- Arizona has 15 counties, while Iowa has 99.
- Iowa's county count is 6.6 times (560%) higher than Arizona's.
Biggest county by area
- Arizona's largest county is Coconino County at 18,616 square miles; Iowa's is Kossuth County at 973 square miles.
- Coconino County's land area is 19.1 times larger than Kossuth County's.
Smallest county by area
- Arizona: Santa Cruz County (1,236 sq mi) vs Iowa: Dickinson County (381 sq mi).
- Santa Cruz County's land area is 3.2 times (225%) larger than Dickinson County's.
Most populous county
- Arizona: Maricopa County (4,673,096 people) vs Iowa: Polk County (516,185 people).
- Maricopa County's population is 9.1 times (805%) larger than Polk County's.
Least populous county
- Arizona: Greenlee County (9,410 people) vs Iowa: Adams County (3,606 people).
- Greenlee County's population is 2.6 times (161%) larger than Adams County's.
Richest county
- Arizona: Maricopa County ($72,176 per capita income) vs Iowa: Mitchell County ($98,211).
- Mitchell County's income is 1.4 times (36%) richer than Maricopa County's.
Poorest county
- Arizona: Graham County ($44,164 per capita income) vs Iowa: Decatur County ($46,134).
- Graham County and Decatur County have about the same income.
Arizona vs Iowa Taxes
State income tax
- Arizona has a top income tax rate of 2.5%, while Iowa has a top income tax rate of 3.8%.
- Iowa's top rate is 1.3 percentage points higher.
Property tax
- Arizona: 0.43% effective rate vs Iowa: 1.29% of home value per year.
- Iowa's rate is 0.86 percentage points higher.
Sales tax
- Arizona: 8.54% combined state and average local rate vs Iowa: 6.94%.
- Arizona's combined rate is 1.6 percentage points higher.
Official Websites
Arizona official website · Iowa official website
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More Size Comparisons
All Arizona 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.