The map above shows Montana and Oregon side by side at exactly the same scale, using equal-area projections, so their true relative sizes are preserved.
Montana vs Oregon Geography
Land area
- Montana has a land area of 145,550 square miles (376,973 km²), while Oregon has 95,997 square miles (248,630 km²).
- Montana's land area is 1.5 times (52%) larger than Oregon's.
Total area
- Montana: 147,043 square miles (380,840 km²) vs Oregon: 98,379 square miles (254,799 km²), including inland and coastal water.
- Montana's total area is 1.5 times (49%) larger than Oregon's.
Length
- Montana is 319 miles (514 km) long from north to south; Oregon is 453 miles (730 km).
- Oregon's north-south length is 1.4 times (42%) longer than Montana's.
Width
- Montana spans 607 miles (976 km) east to west; Oregon spans 445 miles (715 km).
- Montana's east-west width is 1.4 times (36%) wider than Oregon's.
Highest point
- Montana's highest point is Granite Peak at 12,767 feet (3,891 m); Oregon's is Mount Hood at 11,232 feet (3,424 m).
- Granite Peak is 1,535 feet higher than Mount Hood.
Lowest point
- Montana's lowest point is Kootenai River at 1,805 feet; Oregon's is Pacific Ocean at 0 feet.
- Oregon's lowest point is 1,805 feet lower.
Montana vs Oregon Population and History
Population
- Montana has a population of 1,137,233 (2024), while Oregon has 4,272,371 (2024).
- Oregon's population is 3.8 times (276%) larger than Montana's.
Population density
- Montana: 7.8 people per square mile vs Oregon: 44.5.
- Oregon's population density is 5.7 times (471%) higher than Montana's.
Biggest city
- Montana's biggest city is Billings with 121,483 people; Oregon's is Portland with 635,749.
- Portland's population is 5.2 times (423%) larger than Billings'.
Largest metro area
- Montana's largest metropolitan area is Billings, MT metro area (192,531 people) vs Oregon's Portland-Vancouver-Hillsboro, OR-WA metro area (2,537,904).
- Portland-Vancouver-Hillsboro, OR-WA metro area's population is 13.2 times larger than Billings, MT metro area's.
History
- Montana: Admitted to the Union on November 8, 1889, as the 41st state.
- Oregon: Admitted to the Union on February 14, 1859, as the 33rd state.
- In its current form, Oregon is the older of the two by 30 years.
Montana vs Oregon Economy
GDP
- Montana's GDP is $78.4 billion (2024) vs Oregon's $330.2 billion.
- Oregon's economic output is 4.2 times (321%) larger than Montana's.
GDP per capita
- Montana: $68,975 per person vs Oregon: $77,299.
- Oregon's GDP per capita is 1.1 times (12%) higher than Montana's.
Average income
- Montana: $69,240 vs Oregon: $70,823 average income per person (per capita personal income).
- Montana and Oregon have about the same average income.
Montana vs Oregon Counties
Number of counties
- Montana has 56 counties, while Oregon has 36.
- Montana's county count is 1.6 times (56%) higher than Oregon's.
Biggest county by area
- Montana's largest county is Beaverhead County at 5,543 square miles; Oregon's is Harney County at 10,134 square miles.
- Harney County's land area is 1.8 times (83%) larger than Beaverhead County's.
Smallest county by area
- Montana: Silver Bow County (718 sq mi) vs Oregon: Multnomah County (431 sq mi).
- Silver Bow County's land area is 1.7 times (67%) larger than Multnomah County's.
Most populous county
- Montana: Yellowstone County (171,583 people) vs Oregon: Multnomah County (795,897 people).
- Multnomah County's population is 4.6 times (364%) larger than Yellowstone County's.
Least populous county
- Montana: Petroleum County (525 people) vs Oregon: Wheeler County (1,456 people).
- Wheeler County's population is 2.8 times (177%) larger than Petroleum County's.
Richest county
- Montana: Gallatin County ($94,573 per capita income) vs Oregon: Deschutes County ($86,176).
- Gallatin County's income is 1.1 times (10%) richer than Deschutes County's.
Poorest county
- Montana: Blaine County ($37,554 per capita income) vs Oregon: Malheur County ($42,974).
- Malheur County's income is 1.1 times (14%) richer than Blaine County's.
Montana vs Oregon Taxes
State income tax
- Montana has a top income tax rate of 5.65%, while Oregon has a top income tax rate of 9.9%.
- Oregon's top rate is 4.25 percentage points higher.
Property tax
- Montana: 0.69% effective rate vs Oregon: 0.78% of home value per year.
- Oregon's rate is 0.09 percentage points higher.
Sales tax
- Montana: 0% combined state and average local rate vs Oregon: 0%.
- The two are essentially equal.
Official Websites
Montana official website · Oregon official website
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More Size Comparisons
All Montana size comparisons · All Oregon 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.