- Fallon is a city located in Churchill County, Nevada, United States. It is the county seat and largest city in Churchill County. The city is named after rancher Michael Fallon, who was a key figure in the early settlement of the area. Fallon has a population of approximately 8,500 people and is known for its agricultural industry, particularly its cultivation of alfalfa and other crops. The city is also home to Naval Air Station Fallon, which is a major training facility for the U.S. Navy and hosts the renowned TOPGUN fighter pilot training program. In addition to agriculture and military, Fallon's economy is supported by mining, gaming, and tourism. The city offers a variety of recreational opportunities, including hiking, fishing, and boating in nearby Lahontan State Recreation Area.