Doniphan County is the most northeastern county in the U.S. state of Kansas. Its county seat is Troy, and its most populous city is Wathena. As of the 2020 census, the county population was 7,510. The county was named after Alexander Doniphan, a... Wikipedia
Population: 7,440 (2022)
Area: 398 mi²
Largest city: Wathena
Named for: Alexander William Doniphan
Seat: Troy