Colorado is about 1.2 times smaller than New Mexico.

New Mexico is approximately 314,310 sq km, while Colorado is approximately 268,627 sq km, making Colorado 85.47% the size of New Mexico. Meanwhile, the population of New Mexico is ~2.1 million people (3.0 million more people live in Colorado).
This to-scale comparison of New Mexico vs. Colorado uses the Mercator projection, which distorts the size of regions near the poles. Learn more.

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