The map above shows Hawaii and Montana side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Hawaii vs Montana Geography
Land area: Hawaii has a land area of 6,423 square miles (16,634 km²), while Montana has 145,550 square miles (376,973 km²). Montana's land area is 22.7 times larger than Hawaii's.
Total area: Hawaii: 10,970 square miles (28,412 km²) vs Montana: 147,043 square miles (380,840 km²), including inland and coastal water. Montana's total area is 13.4 times larger than Hawaii's.
Length: Hawaii is 333 miles (536 km) long from north to south; Montana is 319 miles (514 km). Hawaii and Montana have about the same north-south length.
Width: Hawaii spans 386 miles (621 km) east to west; Montana spans 607 miles (976 km). Montana's east-west width is 1.6 times (57%) wider than Hawaii's.
Highest point: Hawaii's highest point is Mauna Kea at 13,795 feet (4,205 m); Montana's is Granite Peak at 12,767 feet (3,891 m). Mauna Kea is 1,028 feet higher than Granite Peak.
Lowest point: Hawaii's lowest point is Pacific Ocean at 0 feet; Montana's is Kootenai River at 1,805 feet. Hawaii's lowest point is 1,805 feet lower.
Hawaii vs Montana Population and History
Population: Hawaii has a population of 1,446,146 (2024), while Montana has 1,137,233 (2024). Hawaii's population is 1.3 times (27%) larger than Montana's.
Population density: Hawaii: 225.2 people per square mile vs Montana: 7.8. Hawaii's population density is 28.9 times higher than Montana's.
Biggest city: Hawaii's biggest city is Honolulu with 344,967 people; Montana's is Billings with 121,483. Honolulu's population is 2.8 times (184%) larger than Billings'.
Largest metro area: Hawaii's largest metropolitan area is Urban Honolulu, HI metro area (998,747 people) vs Montana's Billings, MT metro area (192,531). Urban Honolulu, HI metro area's population is 5.2 times (419%) larger than Billings, MT metro area's.
History: Hawaii: Admitted to the Union on August 21, 1959, as the 50th state. Montana: Admitted to the Union on November 8, 1889, as the 41st state. In its current form, Montana is the older of the two by 70 years.
Hawaii vs Montana Economy
GDP: Hawaii's GDP is $117.6 billion (2024) vs Montana's $78.4 billion. Hawaii's economic output is 1.5 times (50%) larger than Montana's.
GDP per capita: Hawaii: $81,339 per person vs Montana: $68,975. Hawaii's GDP per capita is 1.2 times (18%) higher than Montana's.
Average income: Hawaii: $71,019 vs Montana: $69,240 average income per person (per capita personal income). Hawaii and Montana have about the same average income.
Hawaii vs Montana Counties
Number of counties: Hawaii has 5 counties, while Montana has 56. Montana's county count is 11.2 times higher than Hawaii's.
Biggest county by area: Hawaii's largest county is Hawaii County at 4,028 square miles; Montana's is Beaverhead County at 5,543 square miles. Beaverhead County's land area is 1.4 times (38%) larger than Hawaii County's.
Smallest county by area: Hawaii: Kalawao County (12 sq mi) vs Montana: Silver Bow County (718 sq mi). Silver Bow County's land area is 59.8 times larger than Kalawao County's.
Most populous county: Hawaii: Honolulu County (998,747 people) vs Montana: Yellowstone County (171,583 people). Honolulu County's population is 5.8 times (482%) larger than Yellowstone County's.
Least populous county: Hawaii: Kalawao County (81 people) vs Montana: Petroleum County (525 people). Petroleum County's population is 6.5 times (548%) larger than Kalawao County's.
Richest county: Hawaii: Honolulu County ($74,681 per capita income) vs Montana: Gallatin County ($94,573). Gallatin County's income is 1.3 times (27%) richer than Honolulu County's.
Poorest county: Hawaii: Hawaii County ($57,694 per capita income) vs Montana: Blaine County ($37,554). Hawaii County's income is 1.5 times (54%) richer than Blaine County's.
Hawaii vs Montana Taxes
State income tax: Hawaii has a top income tax rate of 11%, while Montana has a top income tax rate of 5.65%. Hawaii's top rate is 5.35 percentage points higher.
Property tax: Hawaii: 0.27% effective rate vs Montana: 0.69% of home value per year. Montana's rate is 0.42 percentage points higher.
Sales tax: Hawaii: 4.5% combined state and average local rate vs Montana: 0%. Hawaii's combined rate is 4.5 percentage points higher.
Official Websites
Hawaii official website · Montana official website
More Size Comparisons
All Hawaii 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.