State size comparison

compared to

Montana is about 2.1 times bigger than Oklahoma.

Oklahoma is approximately 177,847 sq km, while Montana is approximately 376,979 sq km, making Montana 112% larger than Oklahoma. Meanwhile, the population of Oklahoma is ~3.8 million people (2.8 million fewer people live in Montana).
Tip: This to-scale comparison of Oklahoma vs. Montana uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Montana vs. Oklahoma

Flip Comparison · See true size
See Montana on top of Oklahoma
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Quality of Life Comparison · 14 statistics
Be 26.3% more likely to live below the poverty line in Oklahoma
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Cost of Living Comparison · 7 categories - 2026 data
Oklahoma is 5.4% cheaper than Montana
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