Question: Derby High School is a school in the city in what Kansas county?
Related documents: [0]  [DOC] Derby High School is a public high school in Derby, Kansas, United States, serving students in grades 9-12. The current principal is Tim Hamblin. The school colors are green and white. It is the only public high school in the USD 260 school district. The total enrollment for the 2015-2016 school year was 2,087 students. [END] 
[1]  [DOC] Derby is a city in Sedgwick County, Kansas, United States and the largest suburb of Wichita. As of the 2010 census, the city population was 22,158. [END] 
Answer: 
Sedgwick
Sedgwick