The map above shows Arizona and Utah side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arizona vs Utah Geography
Land area: Arizona has a land area of 113,655 square miles (294,366 km²), while Utah has 82,596 square miles (213,922 km²). Arizona's land area is 1.4 times (38%) larger than Utah's.
Total area: Arizona: 113,985 square miles (295,220 km²) vs Utah: 84,898 square miles (219,885 km²), including inland and coastal water. Arizona's total area is 1.3 times (34%) larger than Utah's.
Length: Arizona is 429 miles (690 km) long from north to south; Utah is 436 miles (702 km). Arizona and Utah have about the same north-south length.
Width: Arizona spans 452 miles (727 km) east to west; Utah spans 268 miles (431 km). Arizona's east-west width is 1.7 times (69%) wider than Utah's.
Highest point: Arizona's highest point is Humphreys Peak at 12,620 feet (3,847 m); Utah's is Kings Peak at 13,512 feet (4,118 m). Kings Peak is 892 feet higher than Humphreys Peak.
Lowest point: Arizona's lowest point is Colorado River at 71 feet; Utah's is Beaver Dam Wash at 2,180 feet. Arizona's lowest point is 2,109 feet lower.
Arizona vs Utah Population and History
Population: Arizona has a population of 7,582,384 (2024), while Utah has 3,503,613 (2024). Arizona's population is 2.2 times (116%) larger than Utah's.
Population density: Arizona: 66.7 people per square mile vs Utah: 42.4. Arizona's population density is 1.6 times (57%) higher than Utah's.
Biggest city: Arizona's biggest city is Phoenix with 1,673,164 people; Utah's is Salt Lake City with 217,783. Phoenix's population is 7.7 times (668%) larger than Salt Lake City's.
Largest metro area: Arizona's largest metropolitan area is Phoenix-Mesa-Chandler, AZ metro area (5,186,958 people) vs Utah's Salt Lake City-Murray, UT metro area (1,300,762). Phoenix-Mesa-Chandler, AZ metro area's population is 4.0 times (299%) larger than Salt Lake City-Murray, UT metro area's.
History: Arizona: Admitted to the Union on February 14, 1912, as the 48th state. Utah: Admitted to the Union on January 4, 1896, as the 45th state. In its current form, Utah is the older of the two by 16 years.
Arizona vs Utah Economy
GDP: Arizona's GDP is $570.1 billion (2024) vs Utah's $299.5 billion. Arizona's economic output is 1.9 times (90%) larger than Utah's.
GDP per capita: Arizona: $75,186 per person vs Utah: $85,475. Utah's GDP per capita is 1.1 times (14%) higher than Arizona's.
Average income: Arizona: $65,798 vs Utah: $67,333 average income per person (per capita personal income). Arizona and Utah have about the same average income.
Arizona vs Utah Counties
Number of counties: Arizona has 15 counties, while Utah has 29. Utah's county count is 1.9 times (93%) higher than Arizona's.
Biggest county by area: Arizona's largest county is Coconino County at 18,616 square miles; Utah's is San Juan County at 7,824 square miles. Coconino County's land area is 2.4 times (138%) larger than San Juan County's.
Smallest county by area: Arizona: Santa Cruz County (1,236 sq mi) vs Utah: Davis County (325 sq mi). Santa Cruz County's land area is 3.8 times (281%) larger than Davis County's.
Most populous county: Arizona: Maricopa County (4,673,096 people) vs Utah: Salt Lake County (1,216,274 people). Maricopa County's population is 3.8 times (284%) larger than Salt Lake County's.
Least populous county: Arizona: Greenlee County (9,410 people) vs Utah: Daggett County (956 people). Greenlee County's population is 9.8 times (884%) larger than Daggett County's.
Richest county: Arizona: Maricopa County ($72,176 per capita income) vs Utah: Summit County ($280,510). Summit County's income is 3.9 times (289%) richer than Maricopa County's.
Poorest county: Arizona: Graham County ($44,164 per capita income) vs Utah: Beaver County ($39,179). Graham County's income is 1.1 times (13%) richer than Beaver County's.
Arizona vs Utah Taxes
State income tax: Arizona has a top income tax rate of 2.5%, while Utah has a top income tax rate of 4.5%. Utah's top rate is 2 percentage points higher.
Property tax: Arizona: 0.43% effective rate vs Utah: 0.49% of home value per year. Utah's rate is 0.06 percentage points higher.
Sales tax: Arizona: 8.54% combined state and average local rate vs Utah: 7.42%. Arizona's combined rate is 1.12 percentage points higher.
Official Websites
Arizona official website · Utah official website
More Size Comparisons
All Arizona size comparisons · All Utah 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.