State size comparison

compared to

Montana is about 1.2 times bigger than New Mexico.

New Mexico is approximately 314,310 sq km, while Montana is approximately 376,979 sq km, making Montana 20% larger than New Mexico. Meanwhile, the population of New Mexico is ~2.1 million people (1.1 million fewer people live in Montana).
Tip: This to-scale comparison of New Mexico vs. Montana uses the Mercator projection, which distorts the size of regions near the poles.
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Cost of Living Comparison · 7 categories - 2026 data
New Mexico is 7.3% cheaper than Montana
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