There are 2 US Post Offices in Lander County serving a total of 5,908 residents equating to 2,954 residents per post office. It's estimated that approximately 9,430 packages are handled across the 2 county post offices annually. Lander County is a county located in the U.S. state of Nevada. As of the 2010 census, the population was 5,775. Its county seat is Battle Mountain."