New Mexico is about 7 times smaller than Greenland.

Greenland is approximately 2,166,086 sq km, while New Mexico is approximately 314,310 sq km, making New Mexico 14.51% the size of Greenland. Meanwhile, the population of Greenland is ~57,792 people (2.0 million more people live in New Mexico).
Tip: This to-scale comparison of Greenland vs. New Mexico uses the Mercator projection, which distorts the size of regions near the poles.