Mescalero is a census-designated place (CDP) in Otero County, New Mexico, United States, located on the Mescalero Apache Reservation. The population was 1,338 at the 2010 census.

Otero County is a county located in the U.S. state of New Mexico. As of the 2020 census, the population was 67,839. Its county seat is Alamogordo. Its southern boundary is the Texas state line. It is named for Miguel Antonio Otero, the territorial governor when the county was created.