The map above shows Kentucky and Montana side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Kentucky vs Montana Geography
Land area: Kentucky has a land area of 39,485 square miles (102,267 km²), while Montana has 145,550 square miles (376,973 km²). Montana's land area is 3.7 times (269%) larger than Kentucky's.
Total area: Kentucky: 40,406 square miles (104,651 km²) vs Montana: 147,043 square miles (380,840 km²), including inland and coastal water. Montana's total area is 3.6 times (264%) larger than Kentucky's.
Length: Kentucky is 257 miles (414 km) long from north to south; Montana is 319 miles (514 km). Montana's north-south length is 1.2 times (24%) longer than Kentucky's.
Width: Kentucky spans 418 miles (672 km) east to west; Montana spans 607 miles (976 km). Montana's east-west width is 1.5 times (45%) wider than Kentucky's.
Highest point: Kentucky's highest point is Black Mountain at 4,134 feet (1,260 m); Montana's is Granite Peak at 12,767 feet (3,891 m). Granite Peak is 8,633 feet higher than Black Mountain.
Lowest point: Kentucky's lowest point is Mississippi River at 270 feet; Montana's is Kootenai River at 1,805 feet. Kentucky's lowest point is 1,535 feet lower.
Kentucky vs Montana Population and History
Population: Kentucky has a population of 4,588,372 (2024), while Montana has 1,137,233 (2024). Kentucky's population is 4.0 times (303%) larger than Montana's.
Population density: Kentucky: 116.2 people per square mile vs Montana: 7.8. Kentucky's population density is 14.9 times higher than Montana's.
Biggest city: Kentucky's biggest city is Louisville with 640,796 people; Montana's is Billings with 121,483. Louisville's population is 5.3 times (427%) larger than Billings'.
Largest metro area: Kentucky's largest metropolitan area is Cincinnati, OH-KY-IN metro area (2,302,815 people) vs Montana's Billings, MT metro area (192,531). Cincinnati, OH-KY-IN metro area's population is 12.0 times larger than Billings, MT metro area's.
History: Kentucky: Admitted to the Union on June 1, 1792, as the 15th state. Montana: Admitted to the Union on November 8, 1889, as the 41st state. In its current form, Kentucky is the older of the two by 97 years.
Kentucky vs Montana Economy
GDP: Kentucky's GDP is $295.4 billion (2024) vs Montana's $78.4 billion. Kentucky's economic output is 3.8 times (277%) larger than Montana's.
GDP per capita: Kentucky: $64,375 per person vs Montana: $68,975. Montana's GDP per capita is 1.1 times (7%) higher than Kentucky's.
Average income: Kentucky: $58,256 vs Montana: $69,240 average income per person (per capita personal income). Montana's average income is 1.2 times (19%) higher than Kentucky's.
Kentucky vs Montana Counties
Number of counties: Kentucky has 120 counties, while Montana has 56. Kentucky's county count is 2.1 times (114%) higher than Montana's.
Biggest county by area: Kentucky's largest county is Pike County at 786 square miles; Montana's is Beaverhead County at 5,543 square miles. Beaverhead County's land area is 7.0 times (605%) larger than Pike County's.
Smallest county by area: Kentucky: Gallatin County (98 sq mi) vs Montana: Silver Bow County (718 sq mi). Silver Bow County's land area is 7.3 times (630%) larger than Gallatin County's.
Most populous county: Kentucky: Jefferson County (793,881 people) vs Montana: Yellowstone County (171,583 people). Jefferson County's population is 4.6 times (363%) larger than Yellowstone County's.
Least populous county: Kentucky: Robertson County (2,382 people) vs Montana: Petroleum County (525 people). Robertson County's population is 4.5 times (354%) larger than Petroleum County's.
Richest county: Kentucky: Oldham County ($87,137 per capita income) vs Montana: Gallatin County ($94,573). Gallatin County's income is 1.1 times (9%) richer than Oldham County's.
Poorest county: Kentucky: Elliott County ($31,817 per capita income) vs Montana: Blaine County ($37,554). Blaine County's income is 1.2 times (18%) richer than Elliott County's.
Kentucky vs Montana Taxes
State income tax: Kentucky has a top income tax rate of 3.5%, while Montana has a top income tax rate of 5.65%. Montana's top rate is 2.15 percentage points higher.
Property tax: Kentucky: 0.71% effective rate vs Montana: 0.69% of home value per year. Kentucky's rate is 0.02 percentage points higher.
Sales tax: Kentucky: 6% combined state and average local rate vs Montana: 0%. Kentucky's combined rate is 6 percentage points higher.
Official Websites
Kentucky official website · Montana official website
More Size Comparisons
All Kentucky 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.