There are 6 US Post Offices in Torrance County serving a total of 13,715 residents equating to 2,286 residents per post office. It's estimated that approximately 21,891 packages are handled across the 6 county post offices annually. Torrance County is a county located in the U.S. state of New Mexico. As of the 2010 census, the population was 16,383. The county seat is Estancia. Torrance County is included in the Albuquerque, NM Metropolitan Statistical Area. In 2010, the center of population of New Mexico was located in Torrance County, near Manzano."