The map above shows Louisiana and Montana side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Louisiana vs Montana Geography
Land area: Louisiana has a land area of 43,213 square miles (111,921 km²), while Montana has 145,550 square miles (376,973 km²). Montana's land area is 3.4 times (237%) larger than Louisiana's.
Total area: Louisiana: 52,375 square miles (135,652 km²) vs Montana: 147,043 square miles (380,840 km²), including inland and coastal water. Montana's total area is 2.8 times (181%) larger than Louisiana's.
Length: Louisiana is 301 miles (484 km) long from north to south; Montana is 319 miles (514 km). Montana's north-south length is 1.1 times (6%) longer than Louisiana's.
Width: Louisiana spans 356 miles (574 km) east to west; Montana spans 607 miles (976 km). Montana's east-west width is 1.7 times (71%) wider than Louisiana's.
Highest point: Louisiana's highest point is Driskill Mountain at 533 feet (162 m); Montana's is Granite Peak at 12,767 feet (3,891 m). Granite Peak is 12,234 feet higher than Driskill Mountain.
Lowest point: Louisiana's lowest point is New Orleans at -8 feet; Montana's is Kootenai River at 1,805 feet. Louisiana's lowest point is 1,813 feet lower.
Louisiana vs Montana Population and History
Population: Louisiana has a population of 4,597,740 (2024), while Montana has 1,137,233 (2024). Louisiana's population is 4.0 times (304%) larger than Montana's.
Population density: Louisiana: 106.4 people per square mile vs Montana: 7.8. Louisiana's population density is 13.6 times higher than Montana's.
Biggest city: Louisiana's biggest city is New Orleans with 362,701 people; Montana's is Billings with 121,483. New Orleans' population is 3.0 times (199%) larger than Billings'.
Largest metro area: Louisiana's largest metropolitan area is New Orleans-Metairie, LA metro area (966,230 people) vs Montana's Billings, MT metro area (192,531). New Orleans-Metairie, LA metro area's population is 5.0 times (402%) larger than Billings, MT metro area's.
History: Louisiana: Admitted to the Union on April 30, 1812, as the 18th state. Montana: Admitted to the Union on November 8, 1889, as the 41st state. In its current form, Louisiana is the older of the two by 77 years.
Louisiana vs Montana Economy
GDP: Louisiana's GDP is $329.2 billion (2024) vs Montana's $78.4 billion. Louisiana's economic output is 4.2 times (320%) larger than Montana's.
GDP per capita: Louisiana: $71,594 per person vs Montana: $68,975. Louisiana and Montana have about the same GDP per capita.
Average income: Louisiana: $61,897 vs Montana: $69,240 average income per person (per capita personal income). Montana's average income is 1.1 times (12%) higher than Louisiana's.
Louisiana vs Montana Counties
Number of counties: Louisiana has 64 counties, while Montana has 56. Louisiana's county count is 1.1 times (14%) higher than Montana's.
Biggest county by area: Louisiana's largest county is Vernon Parish at 1,327 square miles; Montana's is Beaverhead County at 5,543 square miles. Beaverhead County's land area is 4.2 times (318%) larger than Vernon Parish's.
Smallest county by area: Louisiana: Orleans Parish (170 sq mi) vs Montana: Silver Bow County (718 sq mi). Silver Bow County's land area is 4.2 times (324%) larger than Orleans Parish's.
Most populous county: Louisiana: East Baton Rouge Parish (453,022 people) vs Montana: Yellowstone County (171,583 people). East Baton Rouge Parish's population is 2.6 times (164%) larger than Yellowstone County's.
Least populous county: Louisiana: Tensas Parish (3,844 people) vs Montana: Petroleum County (525 people). Tensas Parish's population is 7.3 times (632%) larger than Petroleum County's.
Richest county: Louisiana: St. Tammany Parish ($82,398 per capita income) vs Montana: Gallatin County ($94,573). Gallatin County's income is 1.1 times (15%) richer than St. Tammany Parish's.
Poorest county: Louisiana: East Carroll Parish ($36,751 per capita income) vs Montana: Blaine County ($37,554). East Carroll Parish and Blaine County have about the same income.
Louisiana vs Montana Taxes
State income tax: Louisiana has a top income tax rate of 3%, while Montana has a top income tax rate of 5.65%. Montana's top rate is 2.65 percentage points higher.
Property tax: Louisiana: 0.53% effective rate vs Montana: 0.69% of home value per year. Montana's rate is 0.16 percentage points higher.
Sales tax: Louisiana: 10.13% combined state and average local rate vs Montana: 0%. Louisiana's combined rate is 10.13 percentage points higher.
Official Websites
Louisiana official website · Montana official website
More Size Comparisons
All Louisiana 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.