Zimbabwe is about 1.2 times bigger than New Mexico.

New Mexico is approximately 314,310 sq km, while Zimbabwe is approximately 390,757 sq km, making Zimbabwe 24% larger than New Mexico. Meanwhile, the population of New Mexico is ~2.1 million people (13.1 million more people live in Zimbabwe).
Tip: This to-scale comparison of New Mexico vs. Zimbabwe uses the Mercator projection, which distorts the size of regions near the poles.