The map above shows Arkansas and Missouri side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arkansas vs Missouri Geography
Land area
- Arkansas has a land area of 51,992 square miles (134,658 km²), while Missouri has 68,746 square miles (178,052 km²).
- Missouri's land area is 1.3 times (32%) larger than Arkansas'.
Total area
- Arkansas: 53,198 square miles (137,781 km²) vs Missouri: 69,707 square miles (180,540 km²), including inland and coastal water.
- Missouri's total area is 1.3 times (31%) larger than Arkansas'.
Length
- Arkansas is 243 miles (392 km) long from north to south; Missouri is 328 miles (529 km).
- Missouri's north-south length is 1.3 times (35%) longer than Arkansas'.
Width
- Arkansas spans 279 miles (449 km) east to west; Missouri spans 437 miles (703 km).
- Missouri's east-west width is 1.6 times (57%) wider than Arkansas'.
Highest point
- Arkansas's highest point is Mount Magazine at 2,752 feet (839 m); Missouri's is Taum Sauk Mountain at 1,771 feet (540 m).
- Mount Magazine is 981 feet higher than Taum Sauk Mountain.
Lowest point
- Arkansas's lowest point is Ouachita River at 55 feet; Missouri's is St. Francis River at 230 feet.
- Arkansas's lowest point is 175 feet lower.
Arkansas vs Missouri Population and History
Population
- Arkansas has a population of 3,088,354 (2024), while Missouri has 6,245,466 (2024).
- Missouri's population is 2.0 times (102%) larger than Arkansas'.
Population density
- Arkansas: 59.4 people per square mile vs Missouri: 90.8.
- Missouri's population density is 1.5 times (53%) higher than Arkansas'.
Biggest city
- Arkansas's biggest city is Little Rock with 204,774 people; Missouri's is Kansas City with 516,032.
- Kansas City's population is 2.5 times (152%) 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 Missouri's St. Louis, MO-IL metro area (2,811,927).
- St. Louis, MO-IL metro area's population is 2.1 times (110%) larger than Memphis, TN-MS-AR metro area's.
History
- Arkansas: Admitted to the Union on June 15, 1836, as the 25th state.
- Missouri: Admitted to the Union on August 10, 1821, as the 24th state.
- In its current form, Missouri is the older of the two by 15 years.
Arkansas vs Missouri Economy
GDP
- Arkansas's GDP is $188.3 billion (2024) vs Missouri's $448.7 billion.
- Missouri's economic output is 2.4 times (138%) larger than Arkansas'.
GDP per capita
- Arkansas: $60,984 per person vs Missouri: $71,846.
- Missouri's GDP per capita is 1.2 times (18%) higher than Arkansas'.
Average income
- Arkansas: $59,320 vs Missouri: $64,920 average income per person (per capita personal income).
- Missouri's average income is 1.1 times (9%) higher than Arkansas'.
Arkansas vs Missouri Counties
Number of counties
- Arkansas has 75 counties, while Missouri has 115.
- Missouri's county count is 1.5 times (53%) higher than Arkansas'.
Biggest county by area
- Arkansas's largest county is Union County at 1,039 square miles; Missouri's is Texas County at 1,177 square miles.
- Texas County's land area is 1.1 times (13%) larger than Union County's.
Smallest county by area
- Arkansas: Lafayette County (530 sq mi) vs Missouri: St. Louis city (62 sq mi).
- Lafayette County's land area is 8.6 times (758%) larger than St. Louis city's.
Most populous county
- Arkansas: Pulaski County (401,209 people) vs Missouri: St. Louis County (992,929 people).
- St. Louis County's population is 2.5 times (147%) larger than Pulaski County's.
Least populous county
- Arkansas: Calhoun County (4,690 people) vs Missouri: Worth County (1,872 people).
- Calhoun County's population is 2.5 times (151%) larger than Worth County's.
Richest county
- Arkansas: Benton County ($120,594 per capita income) vs Missouri: St. Louis County ($104,775).
- Benton County's income is 1.2 times (15%) richer than St. Louis County's.
Poorest county
- Arkansas: Lincoln County ($36,032 per capita income) vs Missouri: Douglas County ($40,515).
- Douglas County's income is 1.1 times (12%) richer than Lincoln County's.
Arkansas vs Missouri Taxes
State income tax
- Arkansas has a top income tax rate of 3.9%, while Missouri has a top income tax rate of 4.7%.
- Missouri's top rate is 0.8 percentage points higher.
Property tax
- Arkansas: 0.52% effective rate vs Missouri: 0.79% of home value per year.
- Missouri's rate is 0.27 percentage points higher.
Sales tax
- Arkansas: 9.48% combined state and average local rate vs Missouri: 8.44%.
- Arkansas's combined rate is 1.04 percentage points higher.
Official Websites
Arkansas official website · Missouri official website
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More Size Comparisons
All Arkansas size comparisons · All Missouri 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.