Question: Columbus, Ohio is located in which county?

Related documents: [0]  [DOC] The 166th Air Refueling Squadron (166 ARS) is a unit of the Ohio Air National Guard 121st Air Refueling Wing located at Rickenbacker Air National Guard Base, Columbus, Ohio. The 166th is equipped with the KC-135R Stratotanker. [END] 
[1]  [DOC] Rickenbacker Air National Guard Base (1942–present) is an Air National Guard facility of the Ohio Air National Guard located near Lockbourne in southern Franklin County. The base was named for the famous early aviator and Columbus native Eddie Rickenbacker. It is the home of the United States Air Force's 121st Air Refueling Wing (121 ARW), which serves as the host wing and is an Air National Guard (ANG) unit operationally-gained by the Air Mobility Command (AMC). [END]  
Answer: Franklin County
Franklin County