网页Nye County is a county in the U.S. state of Nevada. As of the 2020 census, the population was 51,591. [2] Its county seat is Tonopah. [3] At 18,159 square miles (47,030 km 2), Nye is Nevada's largest county by area and the third-largest county in the contiguous United States, behind Coconino County of Arizona and San Bernardino County of ...