There are 10 US Post Offices in Mora County serving a total of 4,653 residents equating to 465 residents per post office. It's estimated that approximately 7,427 packages are handled across the 10 county post offices annually. Mora County is a county located in the U.S. state of New Mexico. As of the 2010 census, the population was 4,881. Its county seat is Mora.