Lebanon is about 30 times smaller than New Mexico.

New Mexico is approximately 314,310 sq km, while Lebanon is approximately 10,400 sq km, making Lebanon 3.31% the size of New Mexico. Meanwhile, the population of New Mexico is ~2.1 million people (3.2 million more people live in Lebanon).
Tip: This to-scale comparison of New Mexico vs. Lebanon uses the Mercator projection, which distorts the size of regions near the poles.