The map above shows Arkansas and Oklahoma side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arkansas vs Oklahoma Geography
Land area: Arkansas has a land area of 51,992 square miles (134,658 km²), while Oklahoma has 68,597 square miles (177,665 km²). Oklahoma's land area is 1.3 times (32%) larger than Arkansas'.
Total area: Arkansas: 53,198 square miles (137,781 km²) vs Oklahoma: 69,899 square miles (181,038 km²), including inland and coastal water. Oklahoma's total area is 1.3 times (31%) larger than Arkansas'.
Length: Arkansas is 243 miles (392 km) long from north to south; Oklahoma is 533 miles (857 km). Oklahoma's north-south length is 2.2 times (119%) longer than Arkansas'.
Width: Arkansas spans 279 miles (449 km) east to west; Oklahoma spans 490 miles (789 km). Oklahoma's east-west width is 1.8 times (76%) wider than Arkansas'.
Highest point: Arkansas's highest point is Mount Magazine at 2,752 feet (839 m); Oklahoma's is Black Mesa at 4,980 feet (1,518 m). Black Mesa is 2,228 feet higher than Mount Magazine.
Lowest point: Arkansas's lowest point is Ouachita River at 55 feet; Oklahoma's is Little River at 289 feet. Arkansas's lowest point is 234 feet lower.
Arkansas vs Oklahoma Population and History
Population: Arkansas has a population of 3,088,354 (2024), while Oklahoma has 4,095,393 (2024). Oklahoma's population is 1.3 times (33%) larger than Arkansas'.
Population density: Arkansas: 59.4 people per square mile vs Oklahoma: 59.7. Arkansas and Oklahoma have about the same population density.
Biggest city: Arkansas's biggest city is Little Rock with 204,774 people; Oklahoma's is Oklahoma City with 712,919. Oklahoma City's population is 3.5 times (248%) larger than Little Rock's.
Largest metro area: Arkansas's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs Oklahoma's Oklahoma City, OK metro area (1,497,821). Oklahoma City, OK metro area's population is 1.1 times (12%) larger than Memphis, TN-MS-AR metro area's.
History: Arkansas: Admitted to the Union on June 15, 1836, as the 25th state. Oklahoma: Admitted to the Union on November 16, 1907, as the 46th state. In its current form, Arkansas is the older of the two by 71 years.
Arkansas vs Oklahoma Economy
GDP: Arkansas's GDP is $188.3 billion (2024) vs Oklahoma's $263.7 billion. Oklahoma's economic output is 1.4 times (40%) larger than Arkansas'.
GDP per capita: Arkansas: $60,984 per person vs Oklahoma: $64,388. Oklahoma's GDP per capita is 1.1 times (6%) higher than Arkansas'.
Average income: Arkansas: $59,320 vs Oklahoma: $63,708 average income per person (per capita personal income). Oklahoma's average income is 1.1 times (7%) higher than Arkansas'.
Arkansas vs Oklahoma Counties
Number of counties: Arkansas has 75 counties, while Oklahoma has 77. Arkansas and Oklahoma have about the same county count.
Biggest county by area: Arkansas's largest county is Union County at 1,039 square miles; Oklahoma's is Osage County at 2,247 square miles. Osage County's land area is 2.2 times (116%) larger than Union County's.
Smallest county by area: Arkansas: Lafayette County (530 sq mi) vs Oklahoma: Marshall County (372 sq mi). Lafayette County's land area is 1.4 times (43%) larger than Marshall County's.
Most populous county: Arkansas: Pulaski County (401,209 people) vs Oklahoma: Oklahoma County (816,490 people). Oklahoma County's population is 2.0 times (104%) larger than Pulaski County's.
Least populous county: Arkansas: Calhoun County (4,690 people) vs Oklahoma: Cimarron County (2,133 people). Calhoun County's population is 2.2 times (120%) larger than Cimarron County's.
Richest county: Arkansas: Benton County ($120,594 per capita income) vs Oklahoma: Washington County ($126,749). Washington County's income is 1.1 times (5%) richer than Benton County's.
Poorest county: Arkansas: Lincoln County ($36,032 per capita income) vs Oklahoma: Atoka County ($38,709). Atoka County's income is 1.1 times (7%) richer than Lincoln County's.
Arkansas vs Oklahoma Taxes
State income tax: Arkansas has a top income tax rate of 3.9%, while Oklahoma has a top income tax rate of 4.5%. Oklahoma's top rate is 0.6 percentage points higher.
Property tax: Arkansas: 0.52% effective rate vs Oklahoma: 0.75% of home value per year. Oklahoma's rate is 0.23 percentage points higher.
Sales tax: Arkansas: 9.48% combined state and average local rate vs Oklahoma: 9.06%. Arkansas's combined rate is 0.42 percentage points higher.
Official Websites
Arkansas official website · Oklahoma official website
More Size Comparisons
All Arkansas 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.