Nevada's 2nd congressional district is a congressional district that includes the northern third of the state. It includes most of Lyon County, all of Churchill, Douglas, Elko, Eureka, Humboldt, Lander, Pershing, Storey, Washoe, and White Pine counties, as well as the state capital, Carson City. The largest city in the district is Reno, the state's third largest city. Although the district appears rural, its politics are dominated by Reno and Carson City. As of 2017, over 460,000 people reside in Washoe County alone, totaling about two-thirds of the district's population. With a Cook Partisan Voting Index rating of R+8, it is the only Republican-leaning congressional district in Nevada.

Lyon County is a county in the U.S. state of Nevada. As of the 2020 census, the population was 59,235. Lyon County comprises the Fernley, NV Micropolitan Statistical Area which is part of the Reno-Carson City-Fernley, NV Combined Statistical Area.