There are 6 US Post Offices in Furnas County serving a total of 4,489 residents equating to 748 residents per post office. It's estimated that approximately 7,165 packages are handled across the 6 county post offices annually. Furnas County is a county in the U.S. state of Nebraska. As of the 2010 census, the population was 4,959. Its county seat is Beaver City. The county was named in honor of Robert W. Furnas, the second governor of the state of Nebraska. In the Nebraska license plate system, Furnas County is represented by the prefix 38 (it had the thirty-eighth-largest number of vehicles registered in the county when the license plate system was established in 1922)."