He was promoted to 'district' manager. [=he was put in charge of that company's activities in a particular district]
Six police officers are in charge of the 'district'.
She represents the eighth congressional 'district'.
(..) "The Heart Machine-!" DANGER "Open the gates!" "Open the gates, I said!" "If the Heart Machine is destroyed, the entire machine district will end up in ruins!!" "Have you gone mad-?? If the Heart Machine is destroyed, the entire workers' city will be flooded-!!" "Where are your fathers, (..)1927 Metropolis