The map above shows Arizona and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arizona vs Oklahoma Geography
Land area: Arizona has a land area of 113,655 square miles (294,366 km²), while Oklahoma has 68,597 square miles (177,665 km²). Arizona's land area is 1.7 times (66%) larger than Oklahoma's.
Total area: Arizona: 113,985 square miles (295,220 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water. Arizona's total area is 1.6 times (63%) larger than Oklahoma's.
Length: Arizona is 429 miles (690 km) long from north to south; Oklahoma is 533 miles (857 km). Oklahoma's north-south length is 1.2 times (24%) longer than Arizona's.
Width: Arizona spans 452 miles (727 km) east to west; Oklahoma spans 490 miles (789 km). Oklahoma's east-west width is 1.1 times (8%) wider than Arizona's.
Highest point: Arizona's highest point is Humphreys Peak at 12,620 feet (3,847 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m). Humphreys Peak is 7,640 feet higher than Black Mesa.
Lowest point: Arizona's lowest point is Colorado River at 71 feet; Oklahoma's is Little River at 289 feet. Arizona's lowest point is 218 feet lower.
Arizona vs Oklahoma Population and History
Population: Arizona has a population of 7,582,384 (2024), while Oklahoma has 4,095,393 (2024). Arizona's population is 1.9 times (85%) larger than Oklahoma's.
Population density: Arizona: 66.7 people per square mile vs Oklahoma: 59.7. Arizona's population density is 1.1 times (12%) higher than Oklahoma's.
Biggest city: Arizona's biggest city is Phoenix with 1,673,164 people; Oklahoma's is Oklahoma City with 712,919. Phoenix's population is 2.3 times (135%) larger than Oklahoma City's.
Largest metro area: Arizona's largest metropolitan area is Phoenix-Mesa-Chandler, AZ metro area (5,186,958 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821). Phoenix-Mesa-Chandler, AZ metro area's population is 3.5 times (246%) larger than Oklahoma City, OK metro area's.
History: Arizona: Admitted to the Union on February 14, 1912, as the 48th state. Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state. In its current form, Oklahoma is the older of the two by 5 years.
Arizona vs Oklahoma Economy
GDP: Arizona's GDP is $570.1 billion (2024) vs Oklahoma's $263.7 billion. Arizona's economic output is 2.2 times (116%) larger than Oklahoma's.
GDP per capita: Arizona: $75,186 per person vs Oklahoma: $64,388. Arizona's GDP per capita is 1.2 times (17%) higher than Oklahoma's.
Average income: Arizona: $65,798 vs Oklahoma: $63,708 average income per person (per capita personal income). Arizona and Oklahoma have about the same average income.
Arizona vs Oklahoma Counties
Number of counties: Arizona has 15 counties, while Oklahoma has 77. Oklahoma's county count is 5.1 times (413%) higher than Arizona's.
Biggest county by area: Arizona's largest county is Coconino County at 18,616 square miles; Oklahoma's is Osage County at 2,247 square miles. Coconino County's land area is 8.3 times (729%) larger than Osage County's.
Smallest county by area: Arizona: Santa Cruz County (1,236 sq mi) vs Oklahoma: Marshall County (372 sq mi). Santa Cruz County's land area is 3.3 times (233%) larger than Marshall County's.
Most populous county: Arizona: Maricopa County (4,673,096 people) vs Oklahoma: Oklahoma County (816,490 people). Maricopa County's population is 5.7 times (472%) larger than Oklahoma County's.
Least populous county: Arizona: Greenlee County (9,410 people) vs Oklahoma: Cimarron County (2,133 people). Greenlee County's population is 4.4 times (341%) larger than Cimarron County's.
Richest county: Arizona: Maricopa County ($72,176 per capita income) vs Oklahoma: Washington County ($126,749). Washington County's income is 1.8 times (76%) richer than Maricopa County's.
Poorest county: Arizona: Graham County ($44,164 per capita income) vs Oklahoma: Atoka County ($38,709). Graham County's income is 1.1 times (14%) richer than Atoka County's.
Arizona vs Oklahoma Taxes
State income tax: Arizona has a top income tax rate of 2.5%, while Oklahoma has a top income tax rate of 4.5%. Oklahoma's top rate is 2 percentage points higher.
Property tax: Arizona: 0.43% effective rate vs Oklahoma: 0.75% of home value per year. Oklahoma's rate is 0.32 percentage points higher.
Sales tax: Arizona: 8.54% combined state and average local rate vs Oklahoma: 9.06%. Oklahoma's combined rate is 0.52 percentage points higher.
Official Websites
Arizona official website · Oklahoma official website
More Size Comparisons
All Arizona size comparisons · All Oklahoma 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.