There are 3 US Post Offices in Esmeralda County serving a total of 423 residents equating to 141 residents per post office. It's estimated that approximately 675 packages are handled across the 3 county post offices annually. Esmeralda County is a county in the west of U.S. state of Nevada. As of the 2010 census, the population was 783, making it the least populous county in Nevada. Esmeralda County has no incorporated communities. Its county seat is the Census Designated Place of Goldfield. Its 2000 census population density of 0.2706 inhabitants per square mile (0.1045/km2) was the second-lowest of any county in the contiguous United States (above Loving County, Texas). Its school district has no high school, so students in grades 9-12 go to school in Tonopah and are in the database of the Nye County School District. Esmeralda is the only Nevada county in the Los Angeles TV market (or any California market) as defined by A.C. Nielsen."