Back of card: Junction City, Kansas. Municipal Auditorium - Community Center for soldiers. The city is adjacent to Fort Riley (The Cavalry School), the Cavalry Replacement Center, and Camp Funston (Second Cavalry Division). Junction Citys population is 11,500. Located on Highways U.S. 40, U.S.77, Ks. 18, Ks. 57, Union Pacific R.R., M-K-T R.R. "Youre Welcome in Junction City."