Doniphan County, situated in the extreme northeast of Kansas, makes but a small showing on the general map, but a great one in the history of the State. It is bounded on the south by the Missouri River, the State of Missouri and Atchison County, Kansas; west by Brown County; north by the State line and the Missouri, and east by the Missouri River and the State of Missouri. Source: Cutler's History of the State of Kansas 

County Seat:Troy

Date organized: 1855

County History:

1. Cutler's History of the State of Kansas, Doniphan 
2. History of Troy Kansas
3. Kansapedia Entry on Doniphan County

Historic Landmarks, State, National:

1. TALL OAK – Peter Toth Indian Monument – Troy, KS
2. Lewis and Clark expedition through Kansas 

County Historical Society:

Doniphan County Historical Society

Websites about the county:

1. Doniphan County, Kansas
2. City of Troy, Kansas