Alamogordo is a city located in the Tularosa Basin of the Chihuahuan Desert in New Mexico, United States. It serves as the county seat of Otero County and has a population of 31,384 according to the 2020 census. The city is geographically bordered by the Sacramento Mountains to the east and Holloman Air Force Base to the west.
The city is widely recognized for its historical connection to the Trinity test in 1945, which marked the first-ever explosion of an atomic bomb. This event remains one of the most notable characteristics associated with the area's history.