State size comparison

compared to

Missouri is around the same size as Oklahoma.

Oklahoma is approximately 177,847 sq km, while Missouri is approximately 178,414 sq km, making Missouri 0% larger than Oklahoma. Meanwhile, the population of Oklahoma is ~3.8 million people (2.2 million more people live in Missouri).
Tip: This to-scale comparison of Oklahoma vs. Missouri uses the Mercator projection, which distorts the size of regions near the poles.
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Compare further: Missouri vs. Oklahoma
Flip Comparison · See true size
See Missouri on top of Oklahoma
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Cost of Living Comparison · 7 categories - 2026 data
Oklahoma is 6.1% more expensive than Missouri
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