The map above shows Arkansas and Montana side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Arkansas vs Montana Geography
Land area: Arkansas has a land area of 51,992 square miles (134,658 km²), while Montana has 145,550 square miles (376,973 km²). Montana's land area is 2.8 times (180%) larger than Arkansas'.
Total area: Arkansas: 53,198 square miles (137,781 km²) vs Montana: 147,043 square miles (380,840 km²), including inland and coastal water. Montana's total area is 2.8 times (176%) larger than Arkansas'.
Length: Arkansas is 243 miles (392 km) long from north to south; Montana is 319 miles (514 km). Montana's north-south length is 1.3 times (31%) longer than Arkansas'.
Width: Arkansas spans 279 miles (449 km) east to west; Montana spans 607 miles (976 km). Montana's east-west width is 2.2 times (118%) wider than Arkansas'.
Highest point: Arkansas's highest point is Mount Magazine at 2,752 feet (839 m); Montana's is Granite Peak at 12,767 feet (3,891 m). Granite Peak is 10,015 feet higher than Mount Magazine.
Lowest point: Arkansas's lowest point is Ouachita River at 55 feet; Montana's is Kootenai River at 1,805 feet. Arkansas's lowest point is 1,750 feet lower.
Arkansas vs Montana Population and History
Population: Arkansas has a population of 3,088,354 (2024), while Montana has 1,137,233 (2024). Arkansas' population is 2.7 times (172%) larger than Montana's.
Population density: Arkansas: 59.4 people per square mile vs Montana: 7.8. Arkansas' population density is 7.6 times (662%) higher than Montana's.
Biggest city: Arkansas's biggest city is Little Rock with 204,774 people; Montana's is Billings with 121,483. Little Rock's population is 1.7 times (69%) larger than Billings'.
Largest metro area: Arkansas's largest metropolitan area is Memphis, TN-MS-AR metro area (1,339,345 people) vs Montana's Billings, MT metro area (192,531). Memphis, TN-MS-AR metro area's population is 7.0 times (596%) larger than Billings, MT metro area's.
History: Arkansas: Admitted to the Union on June 15, 1836, as the 25th state. Montana: Admitted to the Union on November 8, 1889, as the 41st state. In its current form, Arkansas is the older of the two by 53 years.
Arkansas vs Montana Economy
GDP: Arkansas's GDP is $188.3 billion (2024) vs Montana's $78.4 billion. Arkansas' economic output is 2.4 times (140%) larger than Montana's.
GDP per capita: Arkansas: $60,984 per person vs Montana: $68,975. Montana's GDP per capita is 1.1 times (13%) higher than Arkansas'.
Average income: Arkansas: $59,320 vs Montana: $69,240 average income per person (per capita personal income). Montana's average income is 1.2 times (17%) higher than Arkansas'.
Arkansas vs Montana Counties
Number of counties: Arkansas has 75 counties, while Montana has 56. Arkansas' county count is 1.3 times (34%) higher than Montana's.
Biggest county by area: Arkansas's largest county is Union County at 1,039 square miles; Montana's is Beaverhead County at 5,543 square miles. Beaverhead County's land area is 5.3 times (433%) larger than Union County's.
Smallest county by area: Arkansas: Lafayette County (530 sq mi) vs Montana: Silver Bow County (718 sq mi). Silver Bow County's land area is 1.4 times (36%) larger than Lafayette County's.
Most populous county: Arkansas: Pulaski County (401,209 people) vs Montana: Yellowstone County (171,583 people). Pulaski County's population is 2.3 times (134%) larger than Yellowstone County's.
Least populous county: Arkansas: Calhoun County (4,690 people) vs Montana: Petroleum County (525 people). Calhoun County's population is 8.9 times (793%) larger than Petroleum County's.
Richest county: Arkansas: Benton County ($120,594 per capita income) vs Montana: Gallatin County ($94,573). Benton County's income is 1.3 times (28%) richer than Gallatin County's.
Poorest county: Arkansas: Lincoln County ($36,032 per capita income) vs Montana: Blaine County ($37,554). Lincoln County and Blaine County have about the same income.
Arkansas vs Montana Taxes
State income tax: Arkansas has a top income tax rate of 3.9%, while Montana has a top income tax rate of 5.65%. Montana's top rate is 1.75 percentage points higher.
Property tax: Arkansas: 0.52% effective rate vs Montana: 0.69% of home value per year. Montana's rate is 0.17 percentage points higher.
Sales tax: Arkansas: 9.48% combined state and average local rate vs Montana: 0%. Arkansas's combined rate is 9.48 percentage points higher.
Official Websites
Arkansas official website · Montana official website
More Size Comparisons
All Arkansas size comparisons · All Montana 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.