New Mexico is about 1,776 times bigger than District of Columbia.

District of Columbia is approximately 177 sq km, while New Mexico is approximately 314,310 sq km, making New Mexico 177,476% larger than District of Columbia. Meanwhile, the population of District of Columbia is ~601,723 people (1.5 million more people live in New Mexico).
Tip: This to-scale comparison of District of Columbia vs. New Mexico uses the Mercator projection, which distorts the size of regions near the poles.