The map above shows Arizona and Massachusetts side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arizona vs Massachusetts Geography
Land area: Arizona has a land area of 113,655 square miles (294,366 km²), while Massachusetts has 7,801 square miles (20,204 km²). Arizona's land area is 14.6 times larger than Massachusetts'.
Total area: Arizona: 113,985 square miles (295,220 km²) vs Massachusetts: 10,554 square miles (27,335 km²), including inland and coastal water. Arizona's total area is 10.8 times larger than Massachusetts'.
Length: Arizona is 429 miles (690 km) long from north to south; Massachusetts is 123 miles (198 km). Arizona's north-south length is 3.5 times (249%) longer than Massachusetts'.
Width: Arizona spans 452 miles (727 km) east to west; Massachusetts spans 185 miles (297 km). Arizona's east-west width is 2.4 times (144%) wider than Massachusetts'.
Highest point: Arizona's highest point is Humphreys Peak at 12,620 feet (3,847 m); Massachusetts's is Mount Greylock at 3,489 feet (1,063 m). Humphreys Peak is 9,131 feet higher than Mount Greylock.
Lowest point: Arizona's lowest point is Colorado River at 71 feet; Massachusetts's is Atlantic Ocean at 0 feet. Massachusetts's lowest point is 71 feet lower.
Arizona vs Massachusetts Population and History
Population: Arizona has a population of 7,582,384 (2024), while Massachusetts has 7,136,171 (2024). Arizona's population is 1.1 times (6%) larger than Massachusetts'.
Population density: Arizona: 66.7 people per square mile vs Massachusetts: 914.8. Massachusetts' population density is 13.7 times higher than Arizona's.
Biggest city: Arizona's biggest city is Phoenix with 1,673,164 people; Massachusetts's is Boston with 673,458. Phoenix's population is 2.5 times (148%) larger than Boston's.
Largest metro area: Arizona's largest metropolitan area is Phoenix-Mesa-Chandler, AZ metro area (5,186,958 people) vs Massachusetts's Boston-Cambridge-Newton, MA-NH metro area (5,025,517). Phoenix-Mesa-Chandler, AZ metro area and Boston-Cambridge-Newton, MA-NH metro area have about the same population.
History: Arizona: Admitted to the Union on February 14, 1912, as the 48th state. Massachusetts: Admitted to the Union on February 6, 1788, as the 6th state. In its current form, Massachusetts is the older of the two by 124 years.
Arizona vs Massachusetts Economy
GDP: Arizona's GDP is $570.1 billion (2024) vs Massachusetts's $778.5 billion. Massachusetts' economic output is 1.4 times (37%) larger than Arizona's.
GDP per capita: Arizona: $75,186 per person vs Massachusetts: $109,095. Massachusetts' GDP per capita is 1.5 times (45%) higher than Arizona's.
Average income: Arizona: $65,798 vs Massachusetts: $93,607 average income per person (per capita personal income). Massachusetts' average income is 1.4 times (42%) higher than Arizona's.
Arizona vs Massachusetts Counties
Number of counties: Arizona has 15 counties, while Massachusetts has 14. Arizona's county count is 1.1 times (7%) higher than Massachusetts'.
Biggest county by area: Arizona's largest county is Coconino County at 18,616 square miles; Massachusetts's is Worcester County at 1,511 square miles. Coconino County's land area is 12.3 times larger than Worcester County's.
Smallest county by area: Arizona: Santa Cruz County (1,236 sq mi) vs Massachusetts: Nantucket County (46 sq mi). Santa Cruz County's land area is 26.8 times larger than Nantucket County's.
Most populous county: Arizona: Maricopa County (4,673,096 people) vs Massachusetts: Middlesex County (1,668,956 people). Maricopa County's population is 2.8 times (180%) larger than Middlesex County's.
Least populous county: Arizona: Greenlee County (9,410 people) vs Massachusetts: Nantucket County (14,670 people). Nantucket County's population is 1.6 times (56%) larger than Greenlee County's.
Richest county: Arizona: Maricopa County ($72,176 per capita income) vs Massachusetts: Nantucket County ($129,250). Nantucket County's income is 1.8 times (79%) richer than Maricopa County's.
Poorest county: Arizona: Graham County ($44,164 per capita income) vs Massachusetts: Hampshire County ($65,432). Hampshire County's income is 1.5 times (48%) richer than Graham County's.
Arizona vs Massachusetts Taxes
State income tax: Arizona has a top income tax rate of 2.5%, while Massachusetts has a top income tax rate of 9%. Massachusetts's top rate is 6.5 percentage points higher.
Property tax: Arizona: 0.43% effective rate vs Massachusetts: 1% of home value per year. Massachusetts's rate is 0.57 percentage points higher.
Sales tax: Arizona: 8.54% combined state and average local rate vs Massachusetts: 6.25%. Arizona's combined rate is 2.29 percentage points higher.
Official Websites
Arizona official website · Massachusetts official website
More Size Comparisons
All Arizona size comparisons · All Massachusetts 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.