What is the postal abbreviation for New Mexico?

The postal abbreviation for the state of New Mexico is NM.

New Mexico (Spanish: Nuevo México) is a state in the Southwestern region of the United States of America.

Its capital and cultural center is Santa Fe, which was founded in 1610 as capital of Nuevo México (itself established as a province of New Spain in 1598), while its largest city is Albuquerque with its accompanying metropolitan area. It is one of the Mountain States and shares the Four Corners region with Utah, Colorado, and Arizona.

With a population around two million, New Mexico is the 36th state by population. With a total area of 121,590 sq mi (314,900 km2), it is the fifth-largest and sixth-least densely populated of the 50 states. Due to their geographic locations, northern and eastern New Mexico exhibit a colder, alpine climate, while western and southern New Mexico exhibit a warmer, arid climate.