Nemaha County is a county located in the northeastern part of the U.S. state of Kansas. Its county seat is Seneca. As of the 2020 census, the county population was 10,273. The county was named for the Nemaha River.

Kansas' 2nd congressional district is a congressional district in the U.S. state of Kansas that covers most of the eastern part of the state, except for the core of the Kansas City Metropolitan Area. The district encompasses less than a quarter of the state. The state capital of Topeka, the cities of Emporia, Junction City and Leavenworth and most of Kansas City are located within this district. The district is currently represented by Republican Jake LaTurner.